KR102631910B1 - Offshore Load-out and Float-Off Method of Offshore Floating Structures Using Tilt-Semi Submersible L-Shaped Floating Dock - Google Patents

Abstract

In the present invention, the required launching water depth for launching an offshore floating power generation structure is relatively low, so it takes less time and cost to secure the required launching water depth, safety is increased by loading the offshore floating structure in the longitudinal direction, and the skid rail and active It can be loaded using shoes or mass transport devices and can be launched by tugboat, which further increases safety. It also increases economic efficiency by maximizing the area of the pontoon and allows the floating power generation structure manufactured to be moved and installed using the wet towing method. This study relates to the offshore loading system and launching method of offshore floating wind power generation structures using semi-submersible inclined L-type floating dock ships.
The present invention relates to floating structures on the sea or floating wind power structures, when moving them to the sea after being manufactured on land, using conventional semi-submersible U-type floating docks, jointed U-type floating docks, or large semi-submersible self-propeller floating ships. In the case of a method of loading at sea and transporting and submerging a semi-submersible U-type floating dock or a semi-submersible self-propeller floating vessel to the required depth of water to float a floating structure on the sea, or using a shipbuilding dock, water is placed in the shipbuilding dock after production. There are cases where the offshore floating structure is floated in the seawater by filling it and then the dock gate is opened to move the offshore floating structure to the outside sea. However, when using a conventional semi-submersible self-propeller floating vessel, the existing semi-submersible vessel's Considering the height, the water depth limit required for diving is 42 m, which is deep, stability issues during lateral loading of marine floating structures or floating offshore wind power structures, and the cost of mobilizing and withdrawing semi-submersible self-propeller floating vessels is approximately KRW 4 billion. Considering the cost of approximately 4 billion won during the shipping period, the required cost to float one offshore floating structure or offshore floating wind structure on the sea is approximately 8 billion won, and the cost of a semi-submersible U-type floating dock is approximately 8 billion won. When using a line or jointed U-type floating dock ship, walls are installed on both sides of the pontoon, which increases manufacturing and construction costs, and considering the height of the semi-submersible U-type floating dock ship, the water depth limit required for diving is 33 m. It is deep, and in Korea, to secure this depth, it must be transported to an ocean of about 15 km and then launched. In addition, when using a shipyard dock, the occupation period of the dock takes at least 10 months or more, so the cost of use is about twice that of a semi-submersible self-propeller floating ship considering shipbuilding. In addition, in the case of a conventional semi-submersible U-type floating dock ship, walls are installed on both sides of the pontoon, so there is a problem of high production costs, severe behavior of the floating structure at sea due to waves and wind during launch, and collision with the walls on both sides of the pontoon. In addition, it is a very uneconomical method of increasing the size of the pontoon by more than 50%, and the depth of the launching water is about 33 m, which involves going out to sea for about 15 km.
The semi-submersible inclined L-type floating dock ship method of the present invention has a water depth of 27.5 m required for diving compared to the existing semi-submersible self-propeller floating ship and semi-submersible U-type floating dock ship or jointed U-type floating dock ship. Compared to conventional methods, it is lower than the conventional construction method, and the transportation time is saved by more than 50% because work is done in the ocean within about 7 km to secure the launching water depth. It is stable and economical because the offshore floating structure is loaded in the longitudinal direction. Self-propeller floating vessel rental cost is enough to manufacture at the cost of two offshore floating structures or offshore floating wind power generation structures, so it is economical when applied to multiple offshore floating structures or offshore floating wind power generation structures. Marine floating structures or offshore floating wind power generation structures are loaded using skid rails and active shoes, and using mass transport devices, and offshore floating structures or offshore floating wind power generation structures are loaded using semi-submersible inclined systems. After loading on an L-type floating dock ship, the offshore floating structure or offshore floating wind power generation structure can be floated by its own buoyancy in a position where it is exposed to a depth of 27.5 m in the sea, with a depth of 10 m and a support height of 3 m, as well as a support and floating structure. After submerging with ballast to a depth including 1 m of clearance, tilt to the opposite side of the L-type floating dock stabilizer of the semi-submersible inclined L-type floating dock ship and then use a tugboat to build a semi-submersible inclined L-type floating dock. Since the floating structure or floating wind power structure is gradually pulled to the side by its own buoyancy so as to deviate from the line, even if the floating structure moves due to the load of waves or wind, it does not collide with the L-type floating dock stabilizer. If you do not have to worry about doing so and are leaving the fully semi-submersible inclined L-type floating dock ship, transport the floating structure or floating wind power generation structure to the installation site by wet towing, and use the semi-submersible inclined L-type floating dock ship. By de-ballasting, the inclined part is leveled and brought out of the sea level. It relates to a shipping method for moving offshore floating structures or offshore floating wind power generation structures to the sea after manufacturing them on land. There are two types of semi-submersible inclined L-type floating dock ships. In case ①, pontoon length is installed on both sides of the lower pontoon. Install an L-type floating dock stabilizer with a length of L/5 on one side, and in case of ②, make the total length within L/2 of the pontoon length on one side of the lower pontoon, leaving a certain gap in the middle to ensure stability and economic efficiency. Two L-type floating dock stabilizers were installed, and mass concrete about 0.5 m thick was poured on the bottom of the pontoon to minimize the KG (center of gravity at the bottom of the hull) of the two semi-submersible inclined L-type floating dock ships. , the stabilizer for the two types is installed on the outer surface of the pontoon to maximize the use of the pontoon surface area, and the width and length are installed on the outer surface of the pontoon, so it is flexible in size, satisfies the standards of GM and GZ, and is inexpensive to manufacture. , It is a new construction method with the advantage of ensuring sufficient stability during sea loading and launching.

Description

Offshore Load-out and Float-Off Method of Offshore Floating Structures Using Tilt-Semi Submersible L-Shaped Floating Dock}

The present invention relates to an offshore loading system and launching method for an offshore floating wind power generation structure using a semi-submersible inclined L-type floating dock ship. More specifically, the required launching water depth for launching an offshore floating power generation structure is relatively low. It takes less time and cost to secure the launching water depth, and safety is increased by loading marine floating structures in the longitudinal direction. They can be loaded using skid rails, active shoes, or mass transport devices, and can be launched by tugboats. Safety is further increased, and economic efficiency is increased by maximizing the area of the pontoon, and the offshore floating wind power generation structure is constructed using a semi-submersible inclined L-type floating dock ship that moves and installs the manufactured offshore floating power generation structure using the wet towing method. It is about the shipping system and launching method.

In addition, the present invention relates to an offshore loading system and launching method for an offshore floating wind power generation structure using a semi-submersible inclined L-type floating dock ship. More specifically, the present invention relates to an offshore floating structure or an offshore floating wind power generation structure on land. When manufactured in and moved to the sea, the conventional method of semi-submersible U-type floating dock or jointed U-type floating dock or large semi-submersible self-propeller floating ship is used to ship at sea and semi-submersible U-type floating dock or jointed type. In the case of a method of floating an offshore floating structure by transporting and submerging a U-type floating dock or semi-submersible self-propeller floating vessel to the required launch depth, or using a shipbuilding dock, filling the shipbuilding dock with water to float the floating structure in seawater. After floating, there are cases where the floating structure is moved to the open sea by opening the dock gate. However, when using a conventional semi-submersible self-propeller floating ship, the required launch force required for diving takes into account the height of the existing semi-submersible ship. The limit of water depth (required launch depth is 42 m = 10 m floating depth of marine floating body + 3 m height of support + 2 m clearance of support and floating structure + 25 m height of hull pontoon + 2 m clearance to ground) is deep. , stability issues (stability problems) during side loading of marine floating structures or floating offshore wind power structures, mobilization and withdrawal costs of semi-submersible self-propeller floating vessels are approximately KRW 4 billion, and costs during the shipping period are approximately KRW 4 billion. Considering this, the required cost to float one offshore floating structure or offshore floating wind structure on the sea is approximately 8 billion won. In addition, when using a semi-submersible U-type floating dock ship or a jointed U-type floating dock ship, walls are installed on both sides of the pontoon, which increases manufacturing and construction costs, and the height of the semi-submersible U-type floating dock ship or a jointed U-type floating dock ship The limit of required depth required for diving considering (required launch depth is 33 m = 10 m floating depth of sea float + 3 m height of support + 3 m clearance of support and floating structure due to diving + 15 m of hull pontoon height) m + ground clearance 2 m) is deep, and in Korea, in order to secure this required depth of water, offshore floating wind power using a semi-submersible inclined L-type floating dock ship is transported to the sea about 15 km from the beach and then submerged and launched. It relates to the marine loading system and launching method of power generation structures.

In addition, when using a shipyard dock, the dock occupancy period takes at least 10 months, so the cost of use is about twice that of a semi-submersible self-propeller floating ship considering shipbuilding, and the semi-submersible U, which is a conventional construction method, In the case of a type floating dock ship, walls are installed on both sides of the pontoon to solve the problem of high production costs and the problem of collisions with the walls on both sides of the pontoon due to severe movement (shaking) of floating structures due to waves and wind during diving and launching. It is a very uneconomical construction method because the size of the pontoon must be increased by more than 50% compared to the pontoon of the present invention, and the required depth of water is about 33 m, so the work must be done in the open sea of about 15 km.

The semi-submersible inclined L-type floating dock ship method of the present invention has a lower depth of water required for diving (the required depth of launch is 27.5 m = sea) compared to the existing semi-submersible self-propeller floating ship and the semi-submersible U-type floating dock ship. Floating body floating depth 10 m + support height 3 m + free space between support and floating structure 1 m + pontoon height 8.5 m + slope height when launching 3 m + seabed free space 2 m) is low and the required launching water depth is secured. Since the work is done in the open sea (ocean) within about 7 km from the beach, transportation time is saved by more than 50% compared to the conventional method.

In addition, the method of the present invention is advantageous for stability because it ships the offshore floating structure in the longitudinal direction, and from an economic perspective, the rental cost of a semi-submersible self-propeller floating vessel is low for two offshore floating structures or offshore floating wind power generation structures. It is a cost that can be sufficiently manufactured at the cost required, and is very economical when applied to a large number of offshore floating structures or offshore floating wind power generation structures. In addition, it can be shipped using skid rails and active shoes, or mass transportation devices. This is possible, after loading the offshore floating structure or offshore floating wind power generation structure on the semi-submersible inclined L-type floating dock ship of the present invention, the offshore floating structure is moved to a depth of 27.5 m in the ocean (open sea). After submerging with a ballasting system to a depth including 10 m to a depth that can float an offshore floating wind power generation structure with its own buoyancy, 3 m to the height of the support, and 1 m of clearance between the support and the floating structure, the semi-submersible inclined L Incline to the opposite side of the L-type floating dock stabilizer of the floating dock ship, and use a tugboat to float the offshore floating structure or offshore floating wind power generation structure by its own buoyancy so as to escape the semi-submersible inclined L-type floating dock ship. Since it is slowly pulled to the side, there is no fear of colliding with the L-type floating dock stabilizer even if the floating structure on the sea is shaken by the influence of waves and wind. It is installed by wet towing when it is low by taking off the completely semi-submersible inclined L-type floating dock ship. Transported to the destination, the semi-submersible inclined L-type floating dock ship uses a de-ballasting system to level the inclined portion and bring it out of the sea level, and the semi-submersible inclined L-type floating dock ship of the present invention There are two types of L-type floating dock ships. In case ①, L-type floating dock stabilizers are installed on both sides of the outer surface of the lower pontoon at a length of L/5 of the pontoon length on one side, and the flat area of the upper surface of the pontoon can be utilized to the maximum. As a new construction method, the size of the L-type floating dock stabilizer is the metacenter height when undamaged: GM = KB (center of buoyancy at the bottom of the hull) + BM (metacenter at the center of buoyancy) - KG (center of gravity at the bottom of the hull) ≥ 0.15 m, when damaged. must be selected to satisfy GM ≥ 0.5 m, restoring moment GZ = GM With a total length of Center of buoyancy at the bottom of the hull) + BM (metacenter at the center of buoyancy) - KG (center of gravity at the bottom of the hull) ≥ 0.15 m, GM ≥ 0.5 m in case of damage, GZ = GM * sin(θ) ≥ 0.2 m, which is the restoring moment. , if the height satisfies θ ≥ 30°, the diving depth is about + 5 m, and the pontoon is used to minimize the KG (center of gravity at the bottom of the hull) value of the two semi-submersible inclined L-type floating dock ships of the present invention. Mass concrete about 0.5 m thick is poured on the floor, and the width and length are selected to meet the standards of GM and GZ.

A dock is a facility built in a shipyard or port to repair and build marine structures and is largely divided into dry dock and floating dock. Dry docks are located adjacent to the sea where the water depth is sufficient to launch marine structures. The land is dug to a length, width, and depth sufficient to allow entry and exit of marine structures, connected to the sea, and the side walls and bottom are reinforced with reinforced concrete or piles. , Install a dock gate at the entrance.

A dry dock mounts the hull horizontally with the water, and when the hull is completed, the dock gate is opened and the dock is filled with water. The dry dock floats the marine structure out of the dock and launches it into the sea. However, due to the nature of being built on land adjacent to the coast, there is no need to worry about weak ground. Because it requires foundation construction and equipment to selectively block high-pressure seawater, it is difficult to apply in situations where offshore structures must be built in a short period of time.

The floating dock is made of a steel box and has many tanks inside. The degree of floating is controlled by controlling the seawater storage in each tank. When the tank is filled with water, the weight of the floating dock increases and it sinks into the water. When the water inside is removed, the weight of the floating dock decreases and it floats on the water, and the marine structure that has been completely dried inside the floating dock is launched by sinking the floating dock into the water. Floating docks can be installed in locations where dry docks are not suitable, allowing offshore structures to be built relatively quickly regardless of location. In addition, since the dock is sunk to suit the draft and trim of the marine structure docked in the dock, time is saved for docking and unloading of the marine structure and there is an advantage in that the marine structure can be launched into the sea immediately.

Offshore wind power generation can be classified into fixed type and floating type. The offshore fixed wind power generation type is currently being developed and installed, and technological development is progressing relatively quickly. However, the offshore floating wind power generation type is progressing relatively quickly. Technological development is relatively slow.

Since the offshore fixed wind power generation system is installed in the coastal waters with a maximum water depth of less than 60 m, there are relatively many complaints about noise, pollution of the surrounding environment, or disruption of the surrounding aesthetics, which is a problem that hinders the securing of new and renewable energy by the offshore fixed wind power generation system. .

However, offshore floating wind power generation is installed in the exclusive economic zone of about 100 to 200 m in water depth, so it has the advantage of not causing civil complaints like the offshore fixed wind power generation system installed in the coastal sea, so it has been receiving a lot of attention recently. there is.

Marine floating structures are mainly manufactured on land, loaded on transport ships, transported by sea, and installed at designated locations. They include power generation facilities, oil drilling structures, and offshore oil storage facility structures. Power generation facilities include wind power generation and wind power generation. There are fossil fuel (thermal power) power generation methods, and wind power generation methods are divided into offshore fixed wind power generation and offshore floating wind power generation. Fossil fuel (thermal power) power generation methods include marine fossil fuels that use oil or gas. There are fuel-generated structures, etc.

These offshore floating structures are developing into semi-submersible marine structures that are advantageous for floating with less movement due to waves.

Towing methods for semi-submersible offshore structures include the Dry Towing method, in which the floating offshore structure is mounted on a transport vessel and transported to the installation destination, and the Wet Towing method, in which the floating offshore structure floats on its own and is towed by connecting it to a towing boat. As offshore structures become larger, the wet towing method is increasingly used.

As offshore structures become larger, the method of transporting large offshore structures built at shipyards to the installation destination sea area is changing from the dry towing method to the wet towing method. The biggest reason is the loading capacity of transport ships that can load large offshore structures. It's at its limit. However, Wet Towing takes a long time to be transported to the sea area where it will be installed, and it is difficult to improve towing speed due to resistance caused by environmental conditions during the long-distance towing process. In particular, the shape of the bottom of the water surface of an offshore structure greatly affects the towing speed.

For example, in the case of an offshore power generation structure of 10 megawatt (MW) or higher, the floating wind power structure has a total weight of about 5,000 tons including the generator, the substructure weighs about 3,500 tons, and the tower and generator weigh about 1,500 tons. Meanwhile, in the case of an offshore floating thermal power generation structure using oil and gas production, the lower structure weighs about 20,000 tons and the superstructure weighs about 28,000 tons, for a total of 48,000 tons.

In the case of a semi-submersible inclined L-type floating dock ship, an offshore thermal power generation floating structure using oil and gas production (total of 48,000 tons) and an offshore wind power generation floating structure (total of 5,000 tons) can be used simultaneously, making it very expensive to manufacture. It is economical, and in particular, in the case of offshore floating structures that use thermal power, only about one ship can be manufactured internationally per year, so enabling them to be used simultaneously is problematic in terms of economics and maintenance.

Reference drawing 1 below shows two types of conventional methods, which can be broadly divided into semi-submersible U-type floating dock ship method, jointed U-type floating dock ship method, and semi-submersible floating ship method. In particular, semi-submersible U-type floating dock method. In the case of the line or jointed U-type floating dock ship method, the planar utilization of the pontoon is very low and the stabilizer is installed long on both sides on the pontoon, so it is a very uneconomical method, and the offshore floating wind power generation structure is damaged by external waves or wind. There is a risk of collision with the pontoon wall due to movement inside, and damage to the generator or damage to the lower floating body of the offshore floating wind power generation structure may cause overturning due to the collision load, and about 1.5 times that of the present invention. It is about 15 billion won, and in the case of the semi-submersible self-propeller floating ship method, there is also a risk that the offshore floating wind power generation structure will move within the pontoon due to the wind and collide with the pontoon wall, and the collision load may cause damage to the generator or offshore floating wind power. Damage to the lower floating body of the power generation structure may cause it to capsize, and the production cost is approximately KRW 200 to KRW 300 billion. In the case of leasing, it costs approximately KRW 8 billion for one offshore floating wind power generation structure. do.

<Reference drawing 1>

In order to solve the problems of the prior art as described above, there is a need to develop a technology to manufacture floating power generation structures using wind or thermal power on land, launch them at sea, and then move and install them by wet towing.

In addition, there is a need to develop technology to construct a single semi-submersible inclined L-type floating dock ship based on an offshore floating wind power generation structure (total 5,000 tons to 7,000 tons).

When connecting two semi-submersible inclined L-type floating dock ships pursued in the present invention, it is done as shown in reference drawing 2 below.

<Reference drawing 2>

The offshore floating power generation structure of the present invention is manufactured on land, loaded on a semi-submersible inclined L-type floating dock ship, and then moved to a depth of 27.5 m, at a depth where the offshore floating wind power generation structure can be floated by its own buoyancy. After submerging with a ballasting system to a depth including 10 m, 3 m of support height, and 1 m clearance height of support and floating structure, the L-type floating dock stabilizer of the semi-submersible inclined L-type floating dock ship Incline to the other side, and use a tug boat to gradually pull it to the side to escape the semi-submersible inclined L-type floating dock ship. If it is completely removed, transport it to the installation site by wet towing, and transport it to the installation site by wet towing. An offshore floating structure or offshore floating power generation structure manufactured on land by using a de-ballasting system to level the inclined part of a submerged inclined L-type floating dock ship and bring it out of the water. The purpose is to provide an offshore loading system and launching method for floating wind power generation structures using a semi-submersible inclined L-type floating dock ship that loads water and launches at sea.

This is very economical compared to the conventional U-type floating dock ship, has stability against waves and wind, has low production costs, and is a solution to problems related to the arrangement of large semi-submersible self-propeller floating ships and the period of use of shipyard docks. The purpose is to provide an offshore loading system and launching method for offshore floating wind power generation structures using a semi-submersible inclined L-type floating dock ship that saves air extension.

In addition, the present invention, which was devised to solve the problems and necessities of the prior art as described above, involves the manufacture and installation of walls corresponding to the length of the pontoon on both sides of the pontoon and the high construction costs and work requirements due to the large size of the pontoon. A semi-submersible inclined L-type floating dock that solves the problem of collision with the walls on both sides of the pontoon due to waves during diving and launching of floating structures at sea, excessive rental costs of semi-submersible self-propeller floating ships, and deep water depth of work. The purpose is to provide an offshore loading system and launching method for offshore floating wind power generation structures using ships.

In addition, the present invention reduces the shipping period of offshore floating power generation structures, minimizes loading and launching costs when manufacturing multiple floating power generation structures on land, minimizes the pontoon size of a semi-submersible inclined L-type floating dock ship, and maximizes the pontoon surface area. Another purpose is to provide an offshore loading system and launching method for offshore floating wind power generation structures using a semi-submersible inclined L-type floating dock ship that saves production costs by minimizing stabilizers.

In addition, the present invention is a floating power generation structure using wind power or thermal power that is manufactured on land, launched at sea, and then moved to the destination sea by wet towing and installed, using a semi-submersible inclined L-type floating dock ship. Another purpose is to provide a sea loading system and launching method for wind power generation structures.

In addition, the present invention is an offshore floating dock ship using a semi-submersible inclined L-type floating dock ship consisting of one semi-submersible inclined L-type floating dock ship based on an offshore floating wind power generation structure (total 5,000 tons to 7,000 tons). Another purpose is to provide a sea loading system and launching method for wind power generation structures.

The offshore shipping system for offshore floating wind power generation structures using the semi-submersible inclined L-type floating dock ship of the present invention, designed to achieve the above objectives, docks at the land quay and ships the offshore floating wind power generation structures as cargo. In the offshore shipping system of an offshore floating wind power generation structure using a semi-submersible inclined L-type floating dock ship (100), the semi-submersible inclined L-type floating dock ship (100) has an overall rectangular shape and is divided inside. A pontoon (100-1) equipped with a plurality of ballasting tanks, floating on the sea, and having the center of gravity located downward, loading and securing cargo on a stable and flat upper surface; An L-type floating dock stabilizer (101) that is fixedly installed on the pontoon (100-1) and has an overall hexahedral shape; A transverse ballasting partition wall (107) installed laterally inside the pontoon (100-1) to form a plurality of distinct ballast tanks; A longitudinal ballasting partition 108 installed longitudinally inside the pontoon 100-1 to form a plurality of distinct ballasting tanks; Sea chests 105 each installed at the bottom of a plurality of ballasting tanks provided in the pontoon 100-1 and allowing seawater to flow in or out according to a corresponding control signal; A box-shaped ballast house (102) installed on one selected upper part of the L-type floating dock stabilizer (101); A ballasting air compressor (103) that is fixedly installed on one side of the ballast house (102) and generates and supplies compressed air in response to a corresponding control signal; It is poured uniformly at an average thickness of 0.5 m on the bottom of each of the multiple ballasting tanks provided inside the pontoon (100-1) to ensure floating stability by positioning the center of gravity of the pontoon (100-1) downward. mass concrete (109); A ballast compressed air pipe and control valve (104) installed in each of the ballast tanks and selectively introducing compressed air generated by the ballast air compressor (103) in response to a corresponding control signal; A ballast discharge air pipe and control valve (106) installed in each of the ballast tanks and selectively discharges the compressed air flowing into the ballast tanks according to a corresponding control signal; may include.

The offshore floating wind power generation structure consists of a pontoon that has a flat shape and generates buoyancy, two or more outer columns installed vertically on the outer part of the pontoon, and the pontoon ( It includes a center column installed vertically in the center of the pontoon and a deck that flatly connects the upper side of the outer column and the center column. Marine floating substructure (1); The sea consists of an upper tower (B) installed vertically in the central part of the floating substructure (1) and a power generation unit (A) installed at the upper end of the upper tower (B) and including a propeller and a generator. Floating overhead tower and turbine (2); may include.

It is fixedly installed on the outer surface of the pontoon (100-1) of the semi-submersible inclined L-type floating dock ship 100 or a portion of the land quay so that the semi-submersible inclined L-type floating dock ship 100 is attached to the land quay. A fender (53) that alleviates the impact caused by docking at a portion; It may further include.

A link plate (55) installed on the upper side of the fender (53) and flatly connecting the upper surface of the pontoon (100-1) and the upper surface of the land quay wall; It may further include.

The semi-submersible inclined L-type floating dock ship (100) is installed at the bottom of the offshore floating substructure (1) and docked on the land quay from the land quay to the offshore floating wind power generation structure by the corresponding control signal. Mass transportation device (57) that moves the pontoon (100-1) to the upper surface; It may further include.

The offshore floating wind power generation structure is provided on a portion of the upper surface of the pontoon (100-1) and is moved to the upper surface of the pontoon (100-1) by the mass transport device (57). A support bar 56 is raised to this seated state and supported and installed in a fixed state; It may further include.

The L-type floating dock stabilizer 101 has a length of 1/5 of the length of the pontoon 100-1, has an overall hexahedral shape, and can be configured to be fixedly installed at both ends of the pontoon 100-1. there is.

The L-type floating dock stabilizer 101 is installed at two ends in the longitudinal direction, separated over 1/2 the length of the pontoon (100-1), and each has an overall hexahedral shape, and the pontoon (100-1) ) may be configured to be fixedly installed on both ends of the unit.

A pedestal crane (110) installed in a pedestal manner on top of one of the two L-type floating dock stabilizers (101) and operated by a corresponding control signal; A pedestal crane spot (111) installed on the upper side of the L-type floating dock stabilizer (101) and stabilizing the boom of the pedestal crane (110); It may further include.

Skid rails 51 each installed in parallel at equal intervals on the upper surface of the land quay and the upper surface of the pontoon 100-1; A link beam (52) connecting the skid rail (51) of the land quay and the skid rail (51) of the pontoon (100-1) in a horizontal state, respectively; One or more units are installed at the bottom of the offshore floating substructure (1), and the floating wind power generation structure is installed at the bottom of the offshore floating substructure (1) by the corresponding control signal to the pontoon (100-1) along the skid drain (51) and link beam (52). An active shoe (50) that moves to the upper surface of; It may further include.

It is provided inside the active shoe 50, and while the offshore floating wind power generation structure is moved to the upper surface of the pontoon 100-1, the offshore floating wind power generation structure is separated from the active shoe 50. Hydrojack seated on the support (56); It may further include.

A mooring line (60) consisting of a plurality of which one end is connected and fixedly installed at each of the four corners of the semi-submersible inclined L-type floating dock ship (100) and the other end is connected and fixedly installed to a portion of the land quay wall; It may further include.

In order to achieve the above object, the offshore loading system launching method of the offshore floating wind power generation structure using the semi-submersible inclined L-type floating dock ship of the present invention is to berth on the land quay and cargo the offshore floating wind power generation structure. In the offshore loading system launching method of an offshore floating wind power generation structure using a semi-submersible inclined L-type floating dock ship, the manufacturing step of manufacturing a plurality of offshore floating wind power generation structures on the land quay; A mooring step of anchoring the semi-submersible inclined L-type floating dock ship to the land quay by placing a fender and fixing it with a mooring line; A ballasting step of maintaining the plane of the semi-submersible inclined L-type floating dock ship docked by placing a fender on the land quay parallel to the plane of the land quay by ballasting; A moving loading step of moving and loading the offshore floating wind power generation structure from the land quay to the upper surface of the pontoon of the semi-submersible inclined L-type floating dock using a moving means; A return step of returning the moving means of the moving step from the semi-submersible inclined L-type floating dock ship to the land quay; A launch installation step of towing the semi-submersible inclined L-type floating dock ship to a designated location on the sea and launching and installing the loaded offshore floating wind power generation structure on the sea; may include.

The offshore shipping system of floating wind power generation structures using the semi-submersible inclined L-type floating dock ship of the present invention, which was devised to achieve the above object, is a semi-submersible inclined L-type floating dock ship, and the L-type floating dock ship required for diving is When installing type floating dock stabilizers on both sides of the outside of the pontoon, the length of each stabilizer should not exceed L/5 of the pontoon length. When installing only one side of the outside of the pontoon, the total length of the stabilizers should not exceed L/2 of the pontoon length. It must be small; Manufacturing costs were reduced by considering stability and minimizing the pontoon size (100 mL x 80 mB x 8.5 mH); For ballasting on the upper part of the L-type floating dock stabilizer for diving of the hull, air discharge and piping are connected to the longitudinal ballasting bulkhead and the transverse ballasting bulkhead, respectively, and an adjustment valve is installed at the end; In order to raise the inclined submerged hull out of the water, an air compressor and pipe are connected to the longitudinal and transverse ballasting bulkheads, respectively, to de-ballast the upper part of the L-type floating dock stabilizer, and an auto valve is installed at the end. install; When installing a sea chest that can receive sea water between each bulkhead and performing de-ballasting, when pressure is applied using an air compressor, the water passes through the sea chest and flows out to the outside. A device that uses an air discharger to discharge pressurized air to the outside, allowing water to pass through the sea chest and enter the bulkhead, thereby auto-controlling de-ballasting and ballasting. install; For the stability of a semi-submersible inclined L-type dock ship, a smaller KG (center of gravity at the bottom of the hull) is more advantageous, so concrete about 0.5 m thick is poured on the bottom of the pontoon to lower the center of gravity of the hull as much as possible; A semi-submersible inclined L-type floating dock ship is completed.

The semi-submersible inclined L-type floating dock ship of the present invention is used for loading, transporting, and launching floating wind power generation structures on the sea. The shipping methods include a loading method using skid rails and active shoes and a mass transportation device. There is a shipping method, which must be selected according to the structure of the bottom of the floating offshore wind power generation structure.

After the offshore floating wind power generation structure is loaded onto the semi-submersible inclined L-type floating dock ship of the present invention, L-type floating is used to launch (Float-Off) the offshore floating wind power generation structure at a water depth of 27.5 m. For ballasting on the upper part of the dock stabilizer, the air discharge and piping are connected to the longitudinal and transverse ballasting bulkheads, respectively, and an adjustment valve is operated at the end to control the lateral and longitudinal bulkheads inside the semi-submersible inclined L-type floating dock ship. Compressed air is discharged to the outside through a control valve, so seawater passes through the Sea Chest and enters the horizontal and vertical bulkheads, and the required depth of water for floating offshore wind power generation structures to float underwater (14 m = 10 m floating depth for floating structures) When the height of the support is 3 m and the clearance between the support and the floating structure is 1 m, the adjustment valve is closed, and in order to incline to the other side of the L-type floating dock stabilizer, the ballast in the horizontal and longitudinal bulkheads on the other side of the L-type floating dock stabilizer is installed. By opening the Sting exhaust air piping and control valve to discharge compressed air to the outside, seawater automatically enters through the Sea Chest, and when the inclination is 2 to 4°, the bottom of the offshore floating wind power generation structure and the semi-submersible inclined type are exposed to external waves. Since the clearance height with the L-type floating dock ship support is sufficient, the offshore floating wind power generation structure can be completely moved away from the semi-submersible inclined L-type floating dock ship using a tug boat. In this case, the floating wind power generation structure must be moved to the installation site. It is transported by wet towing, and the semi-submersible L-type floating dock ship uses an air compressor installed on the L-type floating dock stabilizer to close the ballasting exhaust air piping and control valves in the transverse and longitudinal bulkheads, and semi-submersible inclined L-type floating dock ships are transported by wet towing. By using the compressed air inside the transverse and longitudinal bulkheads inside the dock ship through an auto valve, the compressed air is injected into the transverse and longitudinal bulkheads, and the seawater inside the transverse and longitudinal bulkheads flows through the Sea Chest to the outside and out of the seawater. Semi-submersible inclined L It is completely exposed to the type floating dock ship, docks again on the quay wall of an onshore manufacturing facility, and is then used for loading the next offshore floating wind power generation structure.

In addition, an L-type floating dock stabilizer must be installed on the semi-submersible inclined L-type floating dock ship of the present invention, the size of the L-type floating dock stabilizer is very important, and the means of solving the problem is a new construction method that can maximize the use of the pontoon surface area, using a stabilizer. Focus should be placed on size selection, and the height of the metacenter when undamaged is GM = KB (center of buoyancy at the bottom of the hull) + BM (metacenter at the center of buoyancy) - KG (center of gravity at the bottom of the hull) ≥ 0.15 m, damaged GM ≥ 0.5 m, restoring moment GZ = GM ), mass concrete should be poured at the bottom of the pontoon to minimize the KG (center of gravity at the bottom of the hull) value, and the width and length of the stabilizer should be selected to satisfy the standards of GM and GZ. However, in the case of type ① of the semi-submersible inclined L-type floating dock ships, the semi-submersible inclined L-type floating dock stabilizer is installed on both sides of the outside of the pontoon, so that the size of the pontoon can be optimized and the pontoon surface area can be utilized to the maximum, and the length is adjusted to the pontoon length. Each must be less than L/5, and in the case of type ②, the L-type floating dock stabilizer is installed on one side of the pontoon outside the pontoon, so the size of the pontoon can be optimized and the pontoon plane area can be utilized to the maximum, and the total length is L/2 of the pontoon length. It should be less than Therefore, the stabilizer of the semi-submersible inclined L-type floating dock ship of types ① and ② is installed on the outer surface of the pontoon, so the planar area of the pontoon can be utilized to the maximum, and it can be said to be a new construction method that is very flexible in determining the size of the width and length of the stabilizer. will be. As follows, the optimal characteristics of the semi-submersible inclined L-type floating dock ship when the offshore floating wind power generation structure is floating are solved for each plan ① and plan ② as shown in Reference Table 1 and Reference Table 2 below.

<Reference Table 1>

<Reference Table 2>

Next, the type of the semi-submersible inclined L-type floating dock ship of the present invention is shown in reference drawing 3 below. When the offshore floating wind power generation structure is floated during diving and launching, it is pulled to the slope using a tugboat, so it is externally There is no fear of collision with the stabilizer due to waves or wind.

<Reference drawing 3>

As can be seen from Reference Table 1 and Reference Table 2 above, the stability of the semi-submersible inclined L-type floating dock ship in Reference Drawing 1 when submerged was reviewed, and the values of GM ≥ 0.5 m and GZ ≥ 0.2 m were found to be within the allowable values. This is a new method of determining the size of the stabilizer. If the offshore floating wind power generation structure is before being floated to the sea on a pontoon, the stability of the combination of the semi-submersible inclined L-type floating dock ship and the offshore floating wind power generation structure must be reviewed. In this case, each semi-submersible inclined L type If there is no problem with the individual stability of the floating dock ship and the offshore floating wind power generation structure, there is no stability problem even if they are combined. From Reference Table 1 and Reference Table 2 above, it is confirmed that there is no problem with the stability of the semi-submersible inclined L-type floating dock ship when self-submerging or tilting, and in the case of an offshore floating wind power generation structure, there is no problem with stability during design when self-floating. Semi-submersible inclined L-type floating dock ships and offshore floating wind power structures have excellent stability when submerged.

The present invention, configured as described above, is a semi-submersible inclined L-type floating dock ship used in the method of launching on land and launching at sea for a large number of offshore floating wind power plants, and is a conventional semi-submersible U-type floating dock ship and Costs are reduced compared to using a large semi-submersible self-propeller floating ship or a shipyard dock, and after completing the production of multiple floating wind power plants, a semi-submersible inclined L-type floating dock ship is used continuously to develop offshore floating wind power. Since the power generation structure is loaded from the quay wall of the onshore manufacturing site, inclined at 2 to 4 degrees to the opposite side of the stabilizer at sea, and launched using a tugboat, collision between the floating power generation structure and the stabilizer due to waves or wind can be completely prevented. This is a new construction method that is very advantageous for stability compared to the conventional construction method. In addition, it can reduce the loading and launching period of offshore floating power generation structures, has the effect of saving construction costs, and has the effect of saving construction costs, and the stabilizer is installed on the outer surface of the pontoon. The surface area is utilized to the maximum, and manufacturing costs are also very low compared to conventional methods (more than 30% reduction in the case of semi-submersible U-type floating dock ships, more than 90% reduction in the case of semi-submersible self-propeller floating ships), and stabilizer. It has the advantage of being very flexible in determining the size of width and length.

In addition, the present invention is very economical compared to the conventional U-type floating dock ship, is very advantageous in terms of stability against waves and wind, has a low manufacturing cost, and solves the problem of arranging a large semi-submersible self-propeller floating ship, It has the advantage of saving extended construction period during the use period of the shipyard dock.

In addition, the present invention has the advantage of manufacturing a floating power generation structure using wind power or thermal power on land, launching it at sea, and then moving and installing it quickly and at low cost by wet towing.

In addition, the present invention has the advantage of comprising one semi-submersible inclined L-type floating dock ship based on an offshore floating wind power generation structure (total 5,000 to 7,000 tons).

Figure 1 shows an offshore floating wind power generation structure in which stabilizers are installed at a length of L/5 on both sides of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and utilizing a mass transportation device. This is a side view to explain the shipping method,
Figure 1a shows a stabilizer installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and an offshore floating wind power utilizing a mass transportation device. This is a side view to explain the power generation structure loading method,
Figure 1b is a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, in which a stabilizer is installed on one side of the pontoon over L/2 of the pontoon length, and a floating type at sea using a skid rail and an active shoe. This is a side view to explain the wind power generation structure loading method,
Figure 2 shows a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention in which stabilizers are installed at a length of L/5 on both sides of the outside of the pontoon, and the floating wind power generation structure is shipped at sea using a mass transport device. This is a floor plan for explaining the construction method,
Figure 2a shows an offshore floating wind power generation system in which a stabilizer is installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and utilizing a mass transportation device. This is a floor plan to explain the structure loading method,
Figure 2b shows an offshore floating wind power system in which a stabilizer is installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a skid rail and an active shoe are used. This is a floor plan to explain the power generation structure loading method,
Figure 3 shows an offshore floating wind power generation structure in which stabilizers are installed at a length of L/5 on both sides of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a heavy-duty transport device is utilized. This is a cross-sectional view taken after loading and moving to the launch depth,
Figure 3a shows an offshore floating wind power system in which a stabilizer is installed over L/2 of the pontoon length on one side of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. This is a cross-sectional view showing the power generation structure moved to the launch depth after loading.
Figure 3b shows an offshore floating wind power vehicle in which a stabilizer is installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a skid rail and an active shoe are utilized. This is a cross-sectional view showing the power generation structure moved to the launching depth after shipping.
Figure 4 shows an offshore floating wind power generation structure in which stabilizers are installed at a length of L/5 on both sides of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. This is a cross-sectional view of submerging and gradually sloping on the other side of the L-type floating dock stabilizer.
Figure 4a shows an offshore floating wind turbine in which a stabilizer is installed over L/2 of the pontoon length on one side of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. This is a cross-sectional view of submerging the power generation structure and gradually sloping on the other side of the L-type floating dock stabilizer.
Figure 4b shows an offshore floating wind power vehicle in which a stabilizer is installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a skid rail and an active shoe are utilized. This is a cross-sectional view of submerging the power generation structure and gradually sloping it to the other side of the L-type floating dock stabilizer.
Figure 5 shows a floating wind power generation structure in which stabilizers are installed at a length of L/5 on both sides of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. Submerge to give an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer, and when the clearance between the upper part of the support on the side of the L-type floating dock stabilizer and the lower part of the offshore floating wind power generation structure is 1 m, use a tugboat to gradually semi-submerge incline. This is a cross-sectional view outside the L-type floating dock line,
Figure 5a shows a floating wind power vessel in which a stabilizer is installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and each mass transportation device is utilized. Submerge the power generation structure to give it an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer, and when the clearance between the upper part of the support on the side of the L-type floating dock stabilizer and the lower part of the offshore floating wind power generation structure is 1 m, use a tugboat to slowly sink it. This is a cross-sectional view of a submerged inclined L-type floating dock,
Figure 5b shows a floating wind power plant in which a stabilizer is installed over L/2 of the pontoon length on one side of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a skid rail and an active shoe are utilized. Submerge the structure to give it an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer, and when there is a clearance of 1 m between the upper part of the active shoe on the side of the L-type floating dock stabilizer and the lower part of the offshore floating wind power generation structure, slowly sink it using a tugboat. This is a cross-sectional view of a submerged inclined L-type floating dock,
Figure 6 shows an offshore floating wind power generation structure in which stabilizers are installed at a length of L/5 on both sides of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. This is a cross-sectional view showing a semi-submerged inclined L-type floating dock ship that is maintained at an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer in a submerged state and gradually deviated by more than 50% using a tugboat,
Figure 6a shows an offshore floating wind turbine in which a stabilizer is installed over L/2 of the pontoon length on one side of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. This is a cross-sectional view of a semi-submersible tilted L-type floating dock line that is maintained at an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer while the power generation structure is submerged, and is gradually deviated by more than 50% using a tugboat,
Figure 6b shows an offshore floating wind power vehicle in which a stabilizer is installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a skid rail and an active shoe are utilized. This is a cross-sectional view of the semi-submerged tilted L-type floating dock line maintaining an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer in a submerged state and gradually deviating by more than 50% using a tugboat,
Figure 7 shows an offshore floating wind power generation structure in which stabilizers are installed at a length of L/5 on both sides of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. This is a cross-sectional view of the semi-submerged tilted L-type floating dock ship completely deviating from the semi-submerged tilted L-type floating dock ship by maintaining an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer in a submerged state and using a tugboat,
Figure 7a shows an offshore floating wind turbine in which a stabilizer is installed over L/2 of the pontoon length on one side of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. This is a cross-sectional view of the semi-submersible tilted L-type floating dock line completely deviating gradually using a tugboat while maintaining an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer with the power generation structure submerged.
Figure 7b shows an offshore floating wind power vehicle in which a stabilizer is installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a skid rail and an active shoe are utilized. This is a cross-sectional view of the semi-submersible inclined L-type floating dock line completely deviating gradually using a tugboat while maintaining an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer with the power generation structure submerged.
Figure 8 shows an offshore floating wind power generation structure in which stabilizers are installed at a length of L/5 on both sides of the outside of the pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. In a state where it is completely out of the submerged state, a ballasting compressor is used to apply pressure to the transverse and longitudinal bulkheads using compressed air pipes and control valves to deballast the water containing seawater and lift it above sea level to maintain it horizontally. This is a cross-sectional view of transporting an offshore floating wind power generation structure floating in seawater to the installation site using a tugboat.
Figure 8a shows an offshore floating wind turbine in which a stabilizer is installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a mass transportation device is utilized. With the power generation structure completely out of the submerged state, a ballasting compressor is used to apply pressure to the transverse and longitudinal bulkheads using compressed air pipes and control valves to deballast the water containing seawater and lift it above sea level to keep it horizontal. This is a cross-sectional view of transporting an offshore floating wind power generation structure floating in seawater to the installation site using a tugboat,
Figure 8b shows an offshore floating wind power vehicle in which a stabilizer is installed over L/2 of the pontoon length on one side of the outer pontoon on a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, and a skid rail and an active shoe are utilized. With the power generation structure completely out of the submerged state, a ballasting compressor is used to apply pressure to the transverse and longitudinal bulkheads using compressed air pipes and control valves to deballast the water containing seawater and lift it above sea level to keep it horizontal. This is a cross-sectional view of transporting an offshore floating wind power generation structure floating in seawater to the installation site using a tugboat.
Figure 9 shows a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention in which stabilizers are installed at a length of L/5 on both sides of the outside of the pontoon, a mass transportation device is utilized, and then an offshore floating wind power generation device is installed. This is a cross-sectional view of docking at the land quay for the loading of
Figure 9a is a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention, in which a stabilizer is installed on one side of the pontoon over L/2 of the pontoon length, a mass transportation device is utilized, and then a sea floating dock ship is installed. This is a cross-sectional view of docking at the land quay for the shipment of wind power generation.
Figure 9b shows a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention in which a stabilizer is installed on one side of the pontoon over L/2 of the pontoon length, a skid rail and an active shoe are used, and then a sea floating dock ship is installed. This is a cross-sectional view of docking at an onshore quay for loading wind power generation.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

In the following description, shipping and loading have the same meaning and will be described selectively as appropriate to the context.

Hereinafter, with reference to all the attached drawings, the offshore shipping system and launching method of an offshore floating wind power generation structure using a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention will be described in detail.

The offshore loading system for offshore floating wind power generation structures using a semi-submersible inclined L-type floating dock ship (100) docks at the land quay and loads the offshore floating wind power generation structures as cargo.

The semi-submersible inclined L-type floating dock ship (100) includes a pontoon (100-1), an L-type floating dock stabilizer (101), a transverse ballast bulkhead (107), a longitudinal ballast bulkhead (108), and a sea chest ( 105), a ballast house (102), a ballast air compressor (103), mass concrete (109), a ballast compressed air pipe and control valve (104), and a ballast discharge air pipe and control valve (106). .

The pontoon (100-1) has an overall rectangular shape, has a number of internally divided ballasting tanks, floats on the sea, and has its center of gravity located downward to load and secure cargo on the floating, stable, and flat upper surface. The pontoon (100-1) is non-powered and semi-submerges or floats by the ballasting operation of the ballasting tank.

The L-type floating dock stabilizer 101 is fixedly installed on the pontoon 100-1 and has an overall hexahedral shape.

The L-type floating dock stabilizer (101) is 1/5 the length of the pontoon (100-1), has an overall hexahedral shape, and is fixedly installed on both ends of one side of the pontoon (100-1).

In addition, the L-type floating dock stabilizer 101 is installed at each end in the longitudinal direction, separated by 1/2 the length of the pontoon (100-1), and each has an overall hexahedral shape, and is separated from the pontoon (100-1). It is a configuration that is fixedly installed on both ends of the .

The transverse ballasting bulkhead 107 is installed in the transverse direction with the longitudinal direction as the front inside the pontoon 100-1 to create a plurality of divided ballasting tanks.

The longitudinal ballasting partition wall 108 is installed in the longitudinal direction with the longitudinal direction as the front inside the pontoon 100-1 to create a plurality of divided ballasting tanks.

The sea chest 105 is installed at the bottom of a plurality of ballasting tanks provided in the pontoon 100-1, and allows seawater to flow in or out according to a corresponding control signal.

The ballast house 102 has a box shape installed on the upper part of one selected side of the L-type floating dock stabilizer 101.

The ballasting air compressor 103 is fixedly installed on one side of the ballasting house 102 and generates and supplies compressed air according to the corresponding control signal.

The mass concrete 109 is poured uniformly with an average thickness of 0.5 m on the bottom of each of the multiple ballasting tanks provided inside the pontoon 100-1, and the center of gravity of the pontoon 100-1 is positioned downward to ensure floating. Ensure stability.

The ballast compressed air pipe and control valve 104 is installed in each of the ballast tanks and selectively introduces the compressed air generated by the ballast air compressor 103 into each of the ballast tanks according to the corresponding control signal.

The ballast discharge air piping and control valve 106 is installed in each of the ballast tanks and selectively discharges the compressed air flowing into the ballast tank according to the corresponding control signal.

Meanwhile, the fender 53 is fixedly installed on the outer surface of the pontoon (100-1) of the semi-submersible inclined L-type floating dock ship 100 or a part of the land quay, so that the semi-submersible inclined L-type floating dock ship 100 It alleviates the impact caused by docking against a part of the land quay.

The link plate 55 is installed on the upper side of the fender 53 and flatly connects the upper surface of the pontoon 100-1 and the upper surface of the land quay wall.

The mass transport device (57) is installed at the bottom of the offshore floating substructure (1) and is a semi-submersible inclined L-type floating dock ship docked to the onshore quay from the onshore quay to the offshore floating wind power generation structure by the corresponding control signal. Move to the upper surface of the pontoon (100-1) at (100).

The support (56) is provided on a part of the upper surface of the pontoon (100-1), and the offshore floating wind power generation structure is moved to the upper surface of the pontoon (100-1) by the mass transport device (57). The structure is raised to a seated state and supported and installed in a fixed state.

The pedestal crane 110 is installed in a pedestal manner on top of one of the two L-type floating dock stabilizers 101 and is operated by the corresponding control signal to facilitate loading or unloading heavy loads.

The pedestal crane spot 111 is installed on the upper side of the L-type floating dock stabilizer 101 and stabilizes the boom of the pedestal crane 110.

The skid rails 51 are installed in parallel at equal intervals on the upper surface of the land quay wall and the upper surface of the pontoon 100-1.

The link beam 52 connects the skid rail 51 of the land quay and the skid rail 51 of the pontoon 100-1 in a horizontal state.

One or more active shoes (50) are installed at the bottom of the floating substructure (1), and according to the corresponding control signal, the floating wind power generation structure is moved to the pontoon ( It is configured to move to the upper surface of 100-1).

The hydro jack is provided inside the active shoe (50), and with the offshore floating wind power generation structure moved to the upper surface of the pontoon (100-1), the offshore floating wind power generation structure is separated from the active shoe (50) to form a support ( 56).

The mooring line 60 is composed of a number of lines, one end of which is connected and fixedly installed at each of the four corners of the semi-submersible inclined L-type floating dock ship 100, and the other end of which is connected and fixedly installed to a portion of the land quay wall.

The offshore floating wind power generation structure consists of an offshore floating substructure (1) and an offshore floating upper tower and turbine (2).

The marine floating substructure (1) is made up of a flat shape and includes a pontoon that generates buoyancy, and two or more outer columns and pontoons (which are installed vertically on the outer part of the pontoon). It consists of a center column installed vertically in the center of the pontoon, an outer column, and a deck that flatly connects the upper side of the center column.

The floating upper tower and turbine (2) are installed vertically in the center of the floating substructure (1) and the upper end of the upper tower (B), and include a propeller and a generator. It consists of a power generation unit (A).

Hereinafter, with reference to all the attached drawings, a method for launching an offshore loading system for an offshore floating wind power generation structure using a semi-submersible inclined L-type floating dock ship according to an embodiment of the present invention will be described in detail.

The launching method of the offshore loading system for offshore floating power generation structures using a semi-submersible inclined L-type floating dock ship that docks at the land quay and loads offshore floating wind power generation structures as cargo consists of the manufacturing stage, mooring stage, ballasting stage and movement. It consists of a loading stage, a return stage, and a return stage.

The manufacturing stage involves manufacturing multiple offshore floating wind power structures on land quays.

Offshore floating wind power generation structures include all commonly known offshore floating wind power structures such as thermal power generation structures and oil drilling structures.

In the mooring stage, a semi-submersible inclined L-type floating dock ship is docked at a designated location on the land quay by placing a fender and fixed with a mooring line.

The ballasting stage is automatically adjusted or set by the corresponding control signal so that the plane of the semi-submersible inclined L-type floating dock ship docked by fender placement on the land quay is maintained horizontal with the upper plane of the land quay by ballasting.

In the moving loading stage, the floating wind power generation structure is moved from the land quay to the upper surface of the pontoon of the semi-submersible inclined L-type floating dock using a moving means.

In the return stage, the transportation means of the movement stage returns to the land quay from the semi-submersible inclined L-type floating dock ship.

Means of transportation include mass transport devices, active shoes, etc., and all commonly known means of transporting cargo are included.

In the launch installation stage, a semi-submersible inclined L-type floating dock ship is towed to a designated location on the sea, and the loaded offshore floating wind power generation structure is launched and installed at sea.

Figure 1 is a semi-submersible inclined L-type floating dock ship 100, and the L-type floating dock stabilizer 101 is located within each L/5 of the length of the pontoon (100-1), respectively, on the outside of the pontoon (100-1). Or, it is installed on both sides (both ends) of one side, and is a side view for the shipping method of offshore floating wind power generation structures (1, 2) using a mass transportation device (57). A number of floating wind power generation structures ( 1, 2) are manufactured, and the semi-submersible inclined L-type floating dock ship (100) is docked at a specific location on the land quay using the fender (53), and inside the pontoon (100-1) in the lateral and longitudinal directions. ballasting bulkheads (107, 108) were manufactured and installed, a sea chest (105) was installed at the bottom of each tank to facilitate distribution by the inflow and outflow of seawater, and an L-type floating dock stabilizer ( 101) are installed on both ends of the outside (one side) of the pontoon (100-1), and the ballasting house 102 is placed on one side of the upper part of the L-type floating dock stabilizer 101, and a ballasting air compressor 103 is installed inside. is installed, and mass concrete (109) about 0.5 m thick is poured on the bottom of the pontoon (100-1) to place the center of gravity below and minimize the KG value (distance from the bottom of the pontoon to the center of gravity) to ensure stability. , the ballasting compressed air pipe and control valve (104) and the ballast discharge air pipe and control valve (106) are installed inside each ballast tank, and seawater is supplied to the lateral and longitudinal ballast bulkheads (107, 108). In the case of ballasting, the ballasting discharge air piping and control valve 106 are opened to allow seawater to enter from the Sea Chest 105 for ballasting, and at the same time, the ballasting compressed air piping and control valve 104 are closed.

When externally debalancing water filled with seawater to the transverse and longitudinal ballasting bulkheads (107, 108), air is compressed in the ballasting air compressor (103) to deballast the transverse and longitudinal ballasting bulkheads (107, 108). The internal seawater is sent to the outside of the Sea Chest (105) by adjusting the ballasting compressed air piping and control valve (104) to open and adjust the compressed air to (107, 108), and at the same time, the ballasting discharge air piping and control valve (106) Close .

Using this ballasting and deballasting system, the upper part of the land quay wall and the upper part of the pontoon (100-1) are leveled, and then the link plate (55) is installed to ensure that there is no problem in the movement of the mass transportation device (57). , the offshore floating wind power generation structures (1, 2) stationary on land are loaded onto the mass transportation device (57) and slowly raised (loaded) onto the semi-submersible inclined L-type floating dock ship (100), and the pontoon (100) -1) As the additional load increases, the ballast compressed air pipe and control valve (104) and the ballast exhaust air pipe and control valve (106) are used to automatically operate as the moving load changes. to continuously maintain a horizontal state in which the upper part of the land quay wall and the upper part of the pontoon (100-1) coincide with each other.

The offshore floating wind power generation structures (1, 2) reach the correct position of the pontoon (100-1) and are placed on the support (56), and after adjusting the height of the mass transport device (57), they are moved back to the land quay. Or it is a stage of return.

Figure 1a is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is divided into the length of the pontoon (100-1) at one end (one end) of both sides of the pontoon (100-1). Two separate units are installed across L/2 of each, a side view for the shipping method of offshore floating wind power generation structures (1, 2) using a mass transportation device (57), and L-shaped floating for equipment operation when necessary. A pedestal crane (110) and a pedestal crane spot (111) for stabilizing the boom of the pedestal crane (110) are installed on the top of the dock stabilizer (101), and a number of floating wind power generation structures (1, 2) are installed near the land quay. , a semi-submersible inclined L-type floating dock ship (100) is docked on the quay wall using a fender (53), and inside the pontoon (100-1) there are lateral and longitudinal ballasting bulkheads (107, 108). ) is manufactured and installed, a Sea Chest (105) is installed at the bottom of each tank to facilitate the distribution of seawater, an L-type floating dock stabilizer (101) is installed on both sides of the pontoon (100-1), and ballasting is provided. The house 102 is placed on one side of the upper part of the L-type floating dock stabilizer 101, and a ballasting air compressor 103 is installed inside, and mass concrete 109 about 0.5 m thick is placed on the bottom of the pontoon 100-1. is poured and the center of gravity is placed below to ensure stability by minimizing the KG value (distance from the bottom of the pontoon to the center of gravity), and the ballasting compressed air piping and adjustment valve (104) and the ballasting discharge air piping and adjustment valve ( 106) is installed inside each ballast tank, and in the case of ballast that fills the lateral and longitudinal ballast bulkheads (107, 108) with seawater, the ballast discharge air pipe and control valve (106) are opened to seal the sea chest. Seawater comes in from (105) to perform ballasting, and at the same time, the ballasting compressed air pipe and control valve (104) are closed.

When externally debalancing water filled with seawater to the transverse and longitudinal ballasting bulkheads (107, 108), air is compressed in the ballasting air compressor (103) to deballast the transverse and longitudinal ballasting bulkheads (107, 108). The internal seawater is sent to the outside of the Sea Chest (105) by adjusting the ballasting compressed air piping and control valve (104) to open and adjust the compressed air to (107, 108), and at the same time, the ballasting discharge air piping and control valve (106) Close .

Using this ballasting and deballasting system, the upper part of the land quay wall and the upper part of the pontoon (100-1) are leveled, and then the link plate (55) is installed to ensure that there is no problem in the movement of the mass transportation device (57). , the offshore floating wind power generation structures (1, 2) stationary on land are loaded onto the mass transport device (57) and slowly rise onto the semi-submersible inclined L-type floating dock ship (100) and onto the pontoon (100-1). As the additional load increases, the ballast compressed air pipe and control valve (104) and the ballast discharge air pipe and control valve (106) are used to automatically operate them as the moving load changes to continuously maintain the upper part of the land quay and the pontoon ( 100-1) Adjust or control so that it is continuously level with the upper part.

The offshore floating wind power generation structures (1, 2) reach the correct position of the pontoon (100-1) and are placed in a seated state on the support (56), and after adjusting the height of the mass transport device (57), they are placed on the land quay wall. This is the stage of removing or returning to.

Figure 1b is a semi-submersible inclined L-type floating dock ship 100, and the total length of the L-type floating dock stabilizer 101 is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). It is installed over 2, and is a side view for the loading method of offshore floating wind power generation structures (1, 2) using skid rails (51) and active shoes (50). An L-type floating dock stabilizer (101) is installed for equipment operation when necessary. ) A pedestal crane (110) and a pedestal crane spot (111) for stabilization of the crane boom are installed at the top, and a number of floating wind power generation structures (1, 2) are manufactured and produced near the land quay, and a semi-submersible slope is installed. The L-type floating dock ship (100) is docked on the quay wall using a fender (53), and lateral and longitudinal ballasting bulkheads (107, 108) are installed inside the pontoon (100-1) to protect against seawater. To facilitate distribution, a Sea Chest (105) is installed at the bottom of each tank, an L-type floating dock stabilizer (101) is installed on both sides of the pontoon (100-1), and the ballasting house (102) is an L-type floating dock. It is placed on one side of the upper part of the dock stabilizer (101), and a ballasting air compressor (103) is installed inside. Mass concrete (109) about 0.5 m thick is poured on the bottom of the pontoon (100-1) and the center of gravity is placed below. Stability is ensured by minimizing the KG value (distance from the bottom of the pontoon to the center of gravity), and the ballasting compressed air piping and adjustment valve (104) and the ballasting discharge air pipe and adjustment valve (106) are installed inside each ballasting tank. In the case of ballasting, which fills the lateral and longitudinal ballasting bulkheads (107, 108) with seawater, open the ballasting discharge air piping and control valve (106) to allow seawater to flow in from the Sea Chest (105). Sting is performed, and at the same time, the ballasting compressed air pipe and control valve 104 are closed.

When externally debalancing water filled with seawater to the transverse and longitudinal ballasting bulkheads (107, 108), air is compressed in the ballasting air compressor (103) to deballast the transverse and longitudinal ballasting bulkheads (107, 108). The internal seawater is sent to the outside of the Sea Chest (105) by adjusting the ballasting compressed air piping and control valve (104) to open and adjust the compressed air to (107, 108), and at the same time, the ballasting discharge air piping and control valve (106) Close .

Using this ballasting and deballasting system, the upper part of the land quay wall and the upper part of the pontoon (100-1) are leveled, and then the skid is placed on the link beam (52), the land skid rail (51), and the pontoon (100-1). A rail (51) is installed to ensure that there are no problems with the movement of the active shoe (50), and the offshore floating wind power generation structures (1, 2) stationary on land are placed on the active shoe (50) and a semi-submersible inclined L-type structure is gradually installed. As the floating dock ship (100) rises and the additional load on the pontoon (100-1) increases, the moving load is moved using the ballast compressed air pipe and control valve (104) and the ballast exhaust air pipe and control valve (106). As this changes, it operates automatically to continuously maintain the upper surface of the land quay and the upper surface of the pontoon (100-1) in a horizontal state.

The offshore floating wind power generation structures (1, 2) reach the correct position of the pontoon (100-1), are separated by a hydro jack mounted inside the active shoe (50), are seated on the support (56), and the active shoe (50) ) is moved to the land quay, demolished, or returned to be reused.

Figure 2 is a semi-submersible inclined L-type floating dock ship 100, and the L-type floating dock stabilizer 101 is installed on both sides of the outer surface of the pontoon within each L/5 of the length of the pontoon 100-1. This is a floor plan for the shipping method of offshore floating wind power generation structures (1,2) using mass transportation devices (57), and is a mass transportation device ( 57) In order to arrange and maintain a certain distance between the land quay and the semi-submersible inclined L-type floating dock ship (100), a fender (53) is installed and the semi-submersible inclined L-type floating dock ship (100) It is fixed with a mooring line (60) to secure it to the land quay, a link plate (55) is installed to allow the mass transportation device (57) to pass, and the offshore floating wind power generation structures (1, 2) are installed on the pontoon ( 100-1) When the upper position is reached, place the offshore floating wind power generation structure (1, 2) on the pre-installed support (56) using the hydro jack of the wheel of the mass transportation device (57). And the quantity and location of the supports (56) are selected according to the lower type of the offshore floating wind power generation structure (1, 2). After that, the height of the mass transport device 57 is adjusted and then it is moved back to the land quay.

Figure 2a is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). It is installed over 2, and is a floor plan for the shipping method of offshore floating wind power generation structures (1, 2) using a mass transportation device (57). A pad is installed on the top of the L-type floating dock stabilizer (101) for equipment operation when necessary. A Stahl crane (110) and a pedestal crane spot (111) to stabilize the crane boom were installed, and the semi-submersible inclined L-type floating dock ship (100) was fixed to the land quay with a mooring line (60), The mass transportation device (57) must be placed according to the lower type of the offshore floating wind power generation structure (1, 2), and a certain distance is maintained between the land quay and the semi-submersible inclined L-type floating dock ship (100). In order to do this, a fender (53) is installed, a link plate (55) is installed to allow the mass transportation device (57) to pass, and the offshore floating wind power generation structures (1, 2) are installed on the upper part of the pontoon (100-1). When the correct position is reached, the offshore floating wind power generation structure (1, 2) is placed on the pre-installed support (56) using the hydro jack of the wheel of the mass transportation device (57). And the quantity and location of the supports (56) are selected according to the lower type of the offshore floating wind power generation structure (1, 2). After that, the height of the mass transport device 57 is adjusted and then it is moved or returned to the land quay.

Figure 2b is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). It is installed over 2, and is a floor plan for the loading method of offshore floating wind power generation structures (1, 2) using skid rails (51) and active shoes (50). An L-type floating dock stabilizer (101) is installed for equipment operation when necessary. ) A pedestal crane (110) and a pedestal crane spot (111) are installed on the upper part to stabilize the crane boom, and a mooring line (60) is installed to secure the semi-submersible inclined L-type floating dock ship (100) to the land quay. is fixed, and the skid rail (51) and the active shoe (50) are arranged according to the lower type of the offshore floating wind power generation structure (1, 2), and also the land quay and the semi-submersible inclined L-type floating dock ship ( A fender (53) is installed to maintain a certain distance between 100, a link beam (52) is installed for the active shoe (50) to pass through, and the offshore floating wind power generation structures (1, 2) are installed on the pontoon ( 100-1) When the correct position at the top is reached, jack down the hydro jack inside the active shoe (50) on the skid rail (51) at the top of the pre-installed pontoon (100-1) and then install the offshore floating wind power generation structure. Place (1,2). And the quantity and location of skid rails 51 and active shoes 50 are selected according to the lower type of the offshore floating wind power generation structures (1, 2). After that, the offshore floating wind power generation structures (1, 2) reach the correct position of the pontoon (100-1), and the hydro jack mounted inside the active shoe (50) is removed to the land quay and reused.

Figure 3 is a semi-submersible inclined L-type floating dock ship (100), and the L-type floating dock stabilizer (101) is installed on both sides of the outer surface of the pontoon within each L/5 of the length of the pontoon (100-1). This is a cross-sectional view of the offshore floating wind power generation structures (1, 2) using the mass transport device (57) being moved to the launch depth after loading, showing the launch depth of the offshore floating wind power generation structures (1, 2) up to 27.5m. In order to meet the required draft for operating a semi-submersible inclined L-type floating dock ship (100), the draft must be adjusted through ballasting and deballasting, and when ballasting, piping and adjustment of the ballasting discharge air is required. With the valve 106 open and the ballasting compressed air pipe and control valve 104 closed, seawater is injected into the transverse and longitudinal ballasting bulkheads 107 and 108 through the sea chest 105, thereby increasing the draft. When deepening or deballasting, close the ballast discharge air pipe and control valve (106), supply pressure using the ballast air compressor (103) in the ballast house (102), and pressurize the ballast compressed air pipe. And the control valve (104), in the open state, exports seawater with horizontal and longitudinal ballasting bulkheads (107, 108) to the outside through the Sea Chest (105), lowers the draft, and connects to the Towing Line (59) to the tugboat. This is the step of moving to the depth required for launching using (58).

Figure 3a is a semi-submersible inclined L-type floating dock ship 100, and the total length of the L-type floating dock stabilizer 101 is L/ of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). This is a cross-sectional view of the offshore floating wind power generation structures (1, 2) installed over 2 and using a mass transportation device (57), moved to the launch depth after shipping, and an L-type floating dock stabilizer (101) for equipment operation when necessary. A pedestal crane (110) and a pedestal crane spot (111) for stabilization of the crane boom are installed on the upper part, and a semi-submersible inclined L-type floating dock is installed up to a launching depth of 27.5 m for offshore floating wind power generation structures (1, 2). In order to meet the draft required to operate the ship 100, the draft must be adjusted through ballasting and deballasting. When ballasting, the ballasting discharge air piping and control valve 106 must be opened, With the ballasting compressed air piping and control valve (104) closed, seawater is injected into the lateral and longitudinal ballasting bulkheads (107, 108) through the Sea Chest (105) to deepen the draft or perform deballasting. In this case, close the ballast discharge air pipe and control valve (106), supply pressure using the ballast air compressor (103) in the ballast house (102), and open the ballast compressed air pipe and control valve (104). In this state, the seawater with the transverse and longitudinal ballasting bulkheads (107, 108) is exported through the Sea Chest (105) to lower the draft, connect to the Towing Line (59), and use the tugboat (58) to reach the required depth for launching. This is the step to move to.

Figure 3b is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/2 of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). This is a cross-sectional view showing the offshore floating wind power generation structures (1, 2) installed across the sea and utilizing skid rails (51) and active shoes (50) moved to the launch depth after loading. An L-type floating dock is installed for equipment operation when necessary. A pedestal crane (110) and a pedestal crane spot (111) for stabilizing the crane boom were installed on the top of the stabilizer (101), and a semi-submersible inclined crane was installed up to a launching depth of 27.5 m for the offshore floating wind power generation structures (1, 2). In order to meet the required draft to operate the L-type floating dock ship (100), the draft must be adjusted through ballasting and deballasting. When ballasting, the ballasting discharge air piping and control valve (106) is opened, and the ballast compressed air pipe and control valve (104) are closed, and seawater is poured into the transverse and longitudinal ballast bulkheads (107, 108) through the Sea Chest (105) to deepen the draft. When deballasting, close the ballast discharge air pipe and control valve (106), supply pressure using the ballast air compressor (103) in the ballast house (102), and use the ballast compressed air pipe and control valve ( 104), in the open state, exports seawater with transverse and longitudinal ballasting bulkheads (107, 108) to the outside through the Sea Chest (105), lowers the draft, connects to the Towing Line (59), and uses a tugboat (58). This is the stage of moving to the depth required for launch using the wet towing method.

Figure 4 is a semi-submersible inclined L-type floating dock ship 100, and the L-type floating dock stabilizer 101 is installed on both sides of the outer surface of the pontoon within each L/5 of the length of the pontoon 100-1. This is a cross-sectional view of gradually sloping the floating wind power generation structure (1, 2) on the other side of the L-type floating dock stabilizer (101) by submerging the floating wind power generation structure (1, 2) using the mass transportation device (57). 2) Ballast until it is floating, connect the towing line (59) to prevent it from colliding with the L-type floating dock stabilizer (101) using a tugboat (58), and install the ballasting discharge air piping and control valve (106). ) is opened, and the ballasting compressed air piping and control valve (104) are closed, and sea water is poured into the lateral and longitudinal ballasting bulkheads (107, 108) through the Sea Chest (105) to deepen the draft. In addition, the upper part of the support 56 on the upper part of the pontoon 100-1 is completely separated from the lower part of the offshore floating wind power generation structures 1 and 2, creating a margin of about 1 m, and the slope is adjusted to an L-type floating dock. In order to make it to the other side of the stabilizer (101), water must be poured into the lateral and longitudinal ballasting bulkheads (107, 108) on the other side of the L-type floating dock stabilizer (101), and in this case, the ballasting discharge air piping and control valve (106) ) is opened, and the ballasting compressed air pipe and control valve (104) are closed while seawater is injected through the Sea Chest (105), so the draft is gradually deepened to create a slope.

Figure 4a is a semi-submersible inclined L-type floating dock ship 100, and the total length of the L-type floating dock stabilizer 101 is L/ of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). This is a cross-sectional view of gradually sloping on the other side of the L-type floating dock stabilizer (101) by submerging the offshore floating wind power generation structures (1, 2), which are installed over 2 and utilizing a mass transportation device (57), to operate the equipment when necessary. To this end, a pedestal crane (110) and a pedestal crane spot (111) for stabilizing the crane boom were installed on the top of the L-type floating dock stabilizer (101), and the offshore floating wind power generation structures (1, 2) were installed to a floating state. Sting, connect the towing line (59), and use the tugboat (58) to avoid colliding with the L-type floating dock stabilizer (101). In this case, open the ballasting discharge air piping and control valve (106) and apply balsa. With the sting compressed air piping and control valve (104) closed, seawater should be poured into the transverse and longitudinal ballasting bulkheads (107, 108) through the Sea Chest (105) to deepen the draft, and the pontoon (100- 1) The upper part of the support 56 at the top is completely separated from the lower part of the offshore floating wind power generation structures 1 and 2, creating a margin of about 1 m, and the slope is on the opposite side of the L-type floating dock stabilizer 101. In order to make it, water must be poured into the lateral and longitudinal ballasting bulkheads (107, 108) on the opposite side of the L-type floating dock stabilizer (101). In this case, open the ballasting discharge air piping and control valve (106) and apply water. With the Sting compressed air piping and control valve (104) closed, seawater enters the water through the Sea Chest (105), so this is the step to gradually deepen the draft and create a slope.

Figure 4b is a semi-submersible inclined L-type floating dock ship 100, and the total length of the L-type floating dock stabilizer 101 is L/ of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). It is installed across 2 and is required as a cross-sectional view of gradually sloping on the other side of the L-type floating dock stabilizer (101) by submerging the offshore floating wind power generation structures (1, 2) using skid rails (51) and active shoes (50). For city equipment operation, a pedestal crane (110) was installed on the top of the L-type floating dock stabilizer (101) and a pedestal crane spot (111) to stabilize the crane boom, and an offshore floating wind power generation structure (1, 2) was installed. Ballast to a floating state, connect the towing line (59), use the tugboat (58) to prevent collision with the L-type floating dock stabilizer (101), and open the ballasting discharge air piping and control valve (106). In a closed state, the ballasting compressed air piping and control valve 104 are closed, and seawater is injected into the transverse and longitudinal ballasting bulkheads 107 and 108 through the Sea Chest 105 to deepen the draft and pontoon ( 100-1) The upper part of the active shoe (50) on the skid rail (51) at the upper part is completely separated from the lower part of the offshore floating wind power generation structure (1, 2), creating a margin of about 1 m, and the slope is In order to make it to the other side of the L-type floating dock stabilizer (101), water must be poured into the lateral and longitudinal ballasting bulkheads (107, 108) on the other side of the L-type floating dock stabilizer (101). In this case, the ballasting discharge air piping and With the control valve (106) open and the ballasting compressed air piping and control valve (104) closed, seawater is injected through the Sea Chest (105), so this is the step of gradually deepening the draft to create a slope.

Figure 5 is a semi-submersible inclined L-type floating dock ship (100), and the L-type floating dock stabilizer (101) is installed on both sides of the outer surface of the pontoon within each L/5 of the length of the pontoon (100-1). The floating wind power generation structures (1, 2) using the mass transportation device (57) are submerged to give an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer (101). ) side support (56), the lower part of the offshore floating wind power generation structure (1, 2), and a cross-sectional view of the semi-submersible inclined L-type floating dock ship (100) gradually using the tugboat (58) when the clearance of 1 m occurs. The offshore floating wind power generation structures (1, 2) are ballastd to a floating state and connected to the Towing Line (59) to prevent them from colliding with the L-type floating dock stabilizer (101) using the tugboat (58). With the ballasting discharge air piping and control valve 106 open and the ballasting compressed air piping and control valve 104 closed, seawater flows through the sea chest 105 in the horizontal and longitudinal ballasting bulkheads 107, 108), the draft must be deepened, and the upper part of the support (56) at the top of the pontoon (100-1) is completely separated from the lower part of the offshore floating wind power generation structures (1, 2), so that there is a sufficient margin of about 1 m. This occurs, and in order to make the slope to the other side of the L-type floating dock stabilizer (101), water must be poured into the lateral and longitudinal ballasting bulkheads (107, 108) on the other side of the L-type floating dock stabilizer (101). In this case, With the ballast discharge air pipe and control valve (106) open and the ballast compressed air pipe and control valve (104) closed, seawater is injected through the Sea Chest (105), so the draft is gradually deepened and the slope is increased to 2. to 4°, and is a step of separating the offshore floating wind power generation structures (1, 2) and the semi-submersible inclined L-type floating dock ship (100) using a tugboat (58).

Figure 5a is a semi-submersible inclined L-type floating dock ship 100, and the total length of the L-type floating dock stabilizer 101 is L/ of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). It is installed across 2, and the floating wind power generation structures (1, 2) each utilizing a mass transportation device (57) are submerged to give an inclination of 2 to 4° to the opposite side of the L-type floating dock stabilizer (101), and the L-type When the upper part of the support (56) on the floating dock stabilizer (101) side and the lower part of the offshore floating wind power generation structure (1, 2) and a clearance of 1 m occur, a tugboat (58) is used to gradually semi-submerge the inclined L-type floating dock ship ( As a cross-sectional view beyond 100), a pedestal crane (110) and a pedestal crane spot (111) for stabilizing the crane boom are installed on the top of the L-type floating dock stabilizer (101) for equipment operation when necessary, and an offshore floating wind power generation Ballast the structures (1, 2) until they are floating, and connect the towing line (59) to prevent them from colliding with the L-type floating dock stabilizer (101) using the tugboat (58). In this case, ballasting discharge air piping is used. And with the control valve (106) open and the ballasting compressed air pipe and control valve (104) closed, seawater is poured into the horizontal and longitudinal ballast bulkheads (107, 108) through the Sea Chest (105). The draft must be deepened, and the upper part of the support (56) on the top of the pontoon (100-1) is completely separated from the lower part of the offshore floating wind power generation structures (1, 2), so that a sufficient margin of about 1 m is created, and the slope is In order to make it on the other side of the L-type floating dock stabilizer (101), water must be poured into the lateral and longitudinal ballasting bulkheads (107, 108) on the other side of the L-type floating dock stabilizer (101), and the ballasting discharge air piping and With the control valve (106) open and the ballasting compressed air pipe and control valve (104) closed, seawater is injected through the Sea Chest (105), so the draft is gradually deepened to make the inclination 2 to 4°, This is the step of separating the offshore floating wind power generation structures (1, 2) and the semi-submersible inclined L-type floating dock ship (100) using a tugboat (58).

Figure 5b is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). 2, and the floating wind power generation structures (1, 2) utilizing skid rails (51) and active shoes (50) are submerged to create an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer (101). Mainly, the upper part of the active shoe (50) on the side of the L-type floating dock stabilizer (101) and the lower part of the offshore floating wind power generation structure (1, 2), and when a clearance of 1 m occurs, the tugboat (58) is used to gradually semi-submerge inclined L-type This is a cross-sectional view outside the floating dock ship (100). A pedestal crane (110) and a pedestal crane spot (111) to stabilize the crane boom are installed on the top of the L-type floating dock stabilizer (101) for equipment operation when necessary, and a pedestal crane spot (111) is installed on the upper part of the L-type floating dock stabilizer (101) to stabilize the crane boom. Ballast the type wind power generation structures (1, 2) until they are floating, and connect the towing line (59) to prevent them from colliding with the L-type floating dock stabilizer (101) using the tugboat (58). In this case, ballasting With the exhaust air piping and control valve (106) open and the ballasting compressed air piping and control valve (104) closed, seawater flows through the sea chest (105) into the lateral and longitudinal ballasting bulkheads (107, 108). The draft must be deepened and the upper part of the skid rail (51) and active shoe (50) on the upper part of the pontoon (100-1) and the lower part of the offshore floating wind power generation structure (1, 2) must be completely separated. A sufficient margin of about 1 m is created, and in order to make the slope to the other side of the L-type floating dock stabilizer (101), water is poured on the transverse and longitudinal ballasting bulkheads (107, 108) on the other side of the L-type floating dock stabilizer (101). In this case, the ballast discharge air pipe and control valve (106) is opened, and the ballast compressed air pipe and control valve (104) are closed. Since seawater is injected through the Sea Chest (105), the draft is gradually increased. This is the step of deepening the slope to 2 to 4° and separating the offshore floating wind power generation structures (1, 2) and the semi-submersible inclined L-type floating dock ship (100) using a tugboat (58).

Figure 6 is a semi-submersible inclined L-type floating dock ship (100), and the L-type floating dock stabilizer (101) is installed on both sides of the outer surface of the pontoon within each L/5 of the length of the pontoon (100-1). In a state in which the offshore floating wind power generation structures (1, 2) using the mass transportation device (57) are submerged, an inclination of 2 to 4° is maintained with respect to the opposite side of the L-type floating dock stabilizer (101) and the tugboat ( 58) is a cross-sectional view of the semi-submersible inclined L-type floating dock ship 100 gradually deviating by more than 50%, and the inclination 2 to 4° and draft of the semi-submersible inclined L-type floating dock ship 100 in Figure 5-1. While maintaining the draft, a tugboat (58) is used by connecting the towing line (59) to the semi-submersible inclined L-type floating dock ship (100) and the floating wind power generation structure (1, 2). This is the step of gradually allowing the offshore floating wind power generation structures (1, 2) to escape the semi-submersible inclined L-type floating dock ship (100).

Figure 6a is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). It is installed across 2 and maintains an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer (101) in a submerged state in which the offshore floating wind power generation structures (1, 2) utilizing the mass transportation device (57) are submerged. This is a cross-sectional view of more than 50% of the semi-submersible inclined L-type floating dock ship (100) using a tugboat (58). A padestal crane (110) is installed on the top of the L-type floating dock stabilizer (101) for equipment operation when necessary. , A pedestal crane spot 111 was installed to stabilize the crane boom, and the inclination 2 to 4° and draft of the semi-submersible inclined L-type floating dock ship 100 in Figure 5-2 were maintained. , By connecting the towing line (59) to the semi-submersible inclined L-type floating dock ship (100) and the floating wind power generation structure (1, 2), a tugboat (58) is used to gradually develop offshore floating wind power generation. This is the step of working to enable the structures (1, 2) to escape the semi-submersible inclined L-type floating dock ship (100).

Figure 6b is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). 2, and the offshore floating wind power generation structures (1, 2) utilizing skid rails (51) and active shoes (50) are submerged and tilted at an angle of 2 to 2 with respect to the opposite side of the L-type floating dock stabilizer (101). This is a cross-sectional view that maintains 4° and deviates by more than 50% of the semi-submersible inclined L-type floating dock ship (100) using a tugboat (58). A padestal is installed on the top of the L-type floating dock stabilizer (101) for equipment operation when necessary. A crane 110 and a pedestal crane spot 111 for stabilizing the crane boom were installed, and the inclination 2 to 4° and draft of the semi-submersible inclined L-type floating dock ship 100 in Figure 5-3 Maintaining the body, the semi-submersible inclined L-type floating dock ship (100) and the floating wind power generation structure (1, 2) are connected to the Towing Line (59), respectively, and the tug boat (58) is gradually moved to the sea. This is a step in which the floating wind power generation structures (1, 2) can escape the semi-submersible inclined L-type floating dock ship (100).

Figure 7 is a semi-submersible inclined L-type floating dock ship 100, and the L-type floating dock stabilizer 101 is installed on both sides of the outer surface of the pontoon within each L/5 of the length of the pontoon 100-1. In a state in which the offshore floating wind power generation structures (1, 2) using the mass transportation device (57) are submerged, an inclination of 2 to 4° is maintained with respect to the opposite side of the L-type floating dock stabilizer (101) and the tugboat ( 58) is a cross-sectional view of completely leaving the semi-submersible inclined L-type floating dock ship 100, and in FIG. 6-1, the inclination 2 to 4° and the draft (Draft) of the semi-submersible inclined L-type floating dock ship 100 are shown. ), gradually using a tugboat (58) by connecting the Towing Line (59) to the semi-submersible inclined L-type floating dock ship (100) and the floating wind power generation structure (1, 2). This is a step in which the offshore floating wind power generation structures (1, 2) can completely escape the semi-submersible inclined L-type floating dock ship (100).

Figure 7a is a semi-submersible inclined L-type floating dock ship 100, and the total length of the L-type floating dock stabilizer 101 is L/ of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). It is installed across 2 and maintains an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer (101) in a submerged state in which the offshore floating wind power generation structures (1, 2) utilizing the mass transportation device (57) are submerged. This is a cross-sectional view showing a complete departure from the semi-submersible inclined L-type floating dock ship (100) using a tugboat (58), and a padding crane (110) and a crane on the top of the L-type floating dock stabilizer (101) for equipment operation when necessary. A pedestal crane spot 111 was installed to stabilize the boom, and in Figure 6-2, the inclination 2 to 4° and the draft of the semi-submersible inclined L-type floating dock ship 100 were maintained. By connecting the Towing Line (59) to the submerged inclined L-type floating dock ship (100) and the floating wind power generation structure (1, 2), the floating wind power generation structure (1, 2) is gradually built using a tugboat (58). This is the stage of working to completely escape the semi-submersible inclined L-type floating dock ship (100).

Figure 7b is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). 2, and the offshore floating wind power generation structures (1, 2) utilizing skid rails (51) and active shoes (50) are submerged and tilted at an angle of 2 to 2 with respect to the opposite side of the L-type floating dock stabilizer (101). This is a cross-sectional view that maintains 4° and completely deviates from the semi-submersible inclined L-type floating dock ship (100) using a tugboat (58). A padestal crane ( 110), a pedestal crane spot 111 was installed to stabilize the crane boom, and the inclination 2 to 4° and draft of the semi-submersible inclined L-type floating dock ship 100 in Figure 6-3 were maintained. One body, a semi-submersible inclined L-type floating dock ship (100) and a floating wind power generation structure (1, 2) are connected to the Towing Line (59) to gradually float on the sea using a tugboat (58). This is a step in which the wind power generation structures (1, 2) can escape the semi-submerged inclined L-type floating dock ship (100).

Figure 8 shows a semi-submersible inclined L-type floating dock ship (100), and the L-type floating dock stabilizer (101) is installed on both sides of the outer surface of the pontoon within each L/5 of the length of the pontoon (100-1). In a state where the offshore floating wind power generation structures (1, 2) using the mass transportation device (57) are completely out of the submerged state, compressed air is supplied using the ballasting air compressor (103) in the ballasting house (102). Using the piping and control valve 104, pressure is applied to the transverse ballasting bulkheads 107 and 108 to deballast the water containing seawater to lift the pontoon 100-1 above sea level and keep it horizontal. , A cross-sectional view of transporting offshore floating wind power generation structures (1, 2) floating in seawater using a tugboat (58) by connecting a towing line (59) to the installation site. It is also a semi-submersible inclined L-type floating dock ship. (100) The draft must be adjusted through ballasting and deballasting to meet the required draft for operating the semi-submersible inclined L-type floating dock ship (100) on the land quay. In the case of ballasting, With the ballasting discharge air piping and control valve 106 open and the ballasting compressed air piping and control valve 104 closed, seawater flows through the sea chest 105 in the horizontal and longitudinal ballasting bulkheads 107, When pouring water into 108) to deepen the draft or perform deballasting, close the ballasting discharge air piping and control valve 106, and use the ballasting air compressor 103 in the ballasting house 102 to increase the pressure. In the open state, the ballasting compressed air piping and control valve (104) export seawater with the horizontal and longitudinal ballasting bulkheads (107, 108) through the sea chest (105) to the outside to lower the draft. This is the step of connecting the line (59) and moving to the land quay using a tugboat (58).

Figure 8a is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). 2, the floating wind power generation structures (1, 2) installed on the sea using a mass transportation device (57) are completely removed from the submerged state, and the ballasting air compressor (103) in the ballasting house (102) is installed. Using compressed air piping and control valves (104), pressure is applied to the horizontal and longitudinal ballasting bulkheads (107, 108) to deballast water containing seawater, thereby lifting the pontoon (100-1) above sea level and making it horizontal. This is a cross-sectional view of transporting offshore floating wind power generation structures (1, 2) floating in seawater using a tugboat (58) by connecting a towing line (59) to the installation site. L for equipment operation when necessary. A pedestal crane (110) and a pedestal crane spot (111) for stabilizing the crane boom were installed on the top of the type floating dock stabilizer (101), and a semi-submersible inclined L-type floating dock ship (100) was installed on the semi-submersible inclined type floating dock ship (100). In order to meet the required draft for operating the L-type floating dock ship (100) on the land quay, the draft must be adjusted through ballasting and deballasting. When ballasting, the ballasting discharge air piping and adjustment valve must be adjusted. With (106) open and the ballasting compressed air pipe and control valve (104) closed, seawater is poured into the transverse and longitudinal ballast bulkheads (107, 108) through the Sea Chest (105) to increase the draft. When deepening or deballasting, close the ballast discharge air pipe and control valve (106), supply pressure using the ballast air compressor (103) in the ballast house (102), and use the ballast compressed air pipe and In the open state, the control valve (104) discharges seawater with the transverse and longitudinal ballasting bulkheads (107, 108) to the outside through the sea chest (105), lowers the draft, and connects the towing line (59). This is the step of moving to the land quay using a tugboat (58).

Figure 8b is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). 2, and the offshore floating wind power generation structures (1, 2) utilizing skid rails (51) and active shoes (50) are completely removed from the submerged state and the ballasting air compressor in the ballasting house (102). Using (103), pressure is applied to the horizontal and longitudinal ballasting bulkheads (107, 108) using the compressed air piping and the control valve (104) to deballast the water containing seawater to lift the pontoon (100-1) above sea level. This is a cross-sectional view of transporting floating wind power generation structures (1, 2) floating in the sea water using a tugboat (58) by connecting a towing line (59) to the installation site, and operating the equipment when necessary. For this purpose, a pedestal crane (110) and a pedestal crane spot (111) for stabilizing the crane boom were installed on the upper part of the L-type floating dock stabilizer (101), and a semi-submersible inclined L-type floating dock ship (100) was installed. In order to meet the required draft for operating a submersible inclined L-type floating dock ship (100) on the land quay, the draft must be adjusted through ballasting and deballasting. When ballasting, the ballasting discharge air piping must be installed. And with the control valve (106) open and the ballasting compressed air pipe and control valve (104) closed, seawater is poured into the horizontal and longitudinal ballast bulkheads (107, 108) through the Sea Chest (105). When deepening the draft or performing deballasting, close the ballast discharge air pipe and control valve (106), supply pressure using the ballast air compressor (103) in the ballast house (102), and compress the ballast. In the open state, the air piping and control valve (104) exports seawater with the transverse and longitudinal ballasting bulkheads (107, 108) to the outside through the Sea Chest (105), thereby lowering the draft and lowering the Towing Line (59). This is the step of moving to the land quay using a tugboat (58) by connection.

Figure 9 shows a semi-submersible inclined L-type floating dock ship (100), and the L-type floating dock stabilizer (101) is installed on both sides of the outer surface of the pontoon within each L/5 of the length of the pontoon (100-1). After the mass transportation device 57 is utilized, the tugboat 58 is used as a cross-sectional view of berthing on the land quay for loading the offshore floating wind power generation structures 1 and 2. After docking at the land quay, in the case of ballasting that fills the lateral and longitudinal ballasting bulkheads (107, 108) with seawater, open the ballasting discharge air piping and control valve (106) to discharge water from the Sea Chest (105). Seawater comes in and performs ballasting, and at the same time, the ballasting compressed air pipe and control valve (104) are closed.

When externally debalancing water filled with seawater to the transverse and longitudinal ballasting bulkheads (107, 108), air is compressed in the ballasting air compressor (103) to deballast the transverse and longitudinal ballasting bulkheads (107, 108). The internal seawater is sent to the outside of the Sea Chest (105) by adjusting the ballasting compressed air piping and control valve (104) to open and adjust the compressed air to (107, 108), and at the same time, the ballasting discharge air piping and control valve (106) Close .

Using this ballasting and deballasting system, the upper part of the land quay wall and the upper part of the pontoon (100-1) are leveled, and then the link plate (55) is installed to ensure that there is no problem in the movement of the mass transportation device (57). , the offshore floating wind power generation structures (1, 2) stationary on land are loaded onto the mass transport device (57) and slowly rise onto the semi-submersible inclined L-type floating dock ship (100) and onto the pontoon (100-1). As the additional load increases, the ballast compressed air pipe and control valve (104) and the ballast discharge air pipe and control valve (106) are used to automatically operate them as the moving load changes to continuously maintain the upper part of the land quay and the pontoon ( 100-1) It is continuously maintained horizontally with the upper part and the mooring line 60 is secured to the floating dock ship 100 and the quay wall to suppress the horizontal movement of the semi-submersible inclined L-type floating dock ship 100, The next step is to ship the offshore floating wind structures (1, 2).

Figure 9a is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). It is installed across 2, and a mass transportation device (57) is utilized, and then a tugboat (58) is used for loading the offshore floating wind power generation structures (1, 2), which is a cross-sectional view of docking at the land quay wall when necessary. For equipment operation, a pedestal crane (110) was installed on the upper part of the L-type floating dock stabilizer (101) and a pedestal crane spot (111) to stabilize the crane boom, and the dock was docked at the land quay using a tugboat (58). Afterwards, in the case of ballasting in which the lateral and longitudinal ballasting bulkheads (107, 108) are filled with seawater, the ballasting discharge air piping and control valve (106) are opened to allow seawater to enter from the Sea Chest (105) and ballasting. And at the same time, the ballasting compressed air pipe and control valve 104 are closed.

When externally debalancing water filled with seawater on the ballasting bulkheads 107 and 108 in the transverse and longitudinal directions, air is compressed in the ballasting air compressor 103 to deballast the ballasting bulkheads 107 and 108 in the transverse and longitudinal directions. The internal seawater is sent to the outside of the Sea Chest (105) by adjusting the ballasting compressed air piping and control valve (104) to open, and at the same time, the ballasting discharge air piping and control valve (106) are closed.

Using this ballasting and deballasting system, the upper part of the land quay wall and the upper part of the pontoon (100-1) are leveled, and then the link plate (55) is installed to ensure that there is no problem in the movement of the mass transportation device (57). , the offshore floating wind power generation structures (1, 2) stationary on land are loaded onto the mass transport device (57) and slowly rise onto the semi-submersible inclined L-type floating dock ship (100) and onto the pontoon (100-1). As the additional load increases, the ballast compressed air pipe and control valve (104) and the ballast discharge air pipe and control valve (106) are used to automatically operate them as the moving load changes to continuously maintain the upper part of the land quay and the pontoon ( 100-1) It is continuously maintained horizontally with the upper part, and the mooring line 60 is secured to the floating dock ship 100 and the quay wall to suppress the horizontal movement of the semi-submersible inclined L-type floating dock ship 100, The next step is to ship the offshore floating wind structures (1, 2).

Figure 9b is a semi-submersible inclined L-type floating dock ship (100), and the total length of the L-type floating dock stabilizer (101) is L/of the length of the pontoon (100-1) on one side of the outer surface of the pontoon (100-1). 2, a cross-sectional view of a skid rail (51) and an active shoe (50) being utilized, and then docking at the land quay using a tugboat (58) for loading the offshore floating wind power generation structures (1, 2). In order to operate the equipment when necessary, a pedestal crane (110) was installed on the top of the L-type floating dock stabilizer (101) and a pedestal crane spot (111) to stabilize the crane boom, and a tugboat (58) was used to secure the land quay wall. After docking, in the case of ballasting where seawater is filled in the lateral and longitudinal ballasting bulkheads (107, 108), the ballasting discharge air piping and control valve (106) are opened to allow seawater to enter from the Sea Chest (105). Balancing is performed, and at the same time, the ballasting compressed air pipe and control valve 104 are closed.

When externally debalancing water filled with seawater to the transverse and longitudinal ballasting bulkheads (107, 108), air is compressed in the ballasting air compressor (103) to deballast the transverse and longitudinal ballasting bulkheads (107, 108). The internal seawater is sent to the outside of the Sea Chest (105) by adjusting the ballasting compressed air piping and control valve (104) to open and adjust the compressed air to (107, 108), and at the same time, the ballasting discharge air piping and control valve (106) Close .

Using this ballasting and deballasting system, the upper part of the land quay wall and the upper part of the pontoon (100-1) are leveled, and then the skid rail (51) and link beam (52) are installed on the upper part of the pontoon (100-1). So that there are no problems with the movement of the active shoe (50), the offshore floating wind power generation structures (1, 2) stationary on land are loaded on the active shoe (50) and gradually semi-submerged inclined L-type floating dock ship (100). As the additional load on the pontoon (100-1) increases, the ballasting compressed air piping and control valve (104) and the ballasting discharge air piping and control valve (106) are used to automatically adjust the moving load as it changes. By operating it, it is continuously maintained horizontally with the upper part of the land quay and the upper part of the pontoon (100-1), and the mooring line (60) is fixed to the floating dock ship (100) and the quay wall to create a semi-submersible inclined L-type floating dock ship ( This is the step of suppressing the horizontal movement of 100) and loading the next offshore floating wind power structures (1, 2).

The above configuration provides stability by preventing collisions between offshore floating power generation structures and stabilizers due to waves or wind, reduces loading and launch dates, saves construction costs, maximizes use of the pontoon floor area, and uses the wet towing method. It has the advantage of being mobile and installed quickly and at low cost.

Although the present invention has been described in detail with respect to the disclosed embodiments above, it is clear to those skilled in the art that various changes and modifications are possible within the technical scope of the present invention, and it is natural that such changes and modifications fall within the scope of the appended patent claims.

1: Offshore floating substructure 2: Offshore floating upper tower and turbine
50: Active shoe 51: Skid rail
52: Link beam 53: Fender
55: link plate 56: support
57: Mass transportation device 58: Tugboat
59: Towing Line 60: Mooring Line
100: Semi-submersible inclined L-type floating dock ship
100-1: Pontoon 101: L-type floating dock stabilizer
102: Ballasting house 103: Ballasting air compressor
104: Ballasting compressed air piping and adjustment valve
105: Sea chest 106: Ballasting discharge air piping and adjustment valve
107: Transverse ballasting bulkhead 108: Longitudinal ballasting bulkhead
109: Mass concrete 110: Pedestal crane
111: Pedestal Crane Spot

Claims (34)

In the marine shipping system for offshore floating wind power generation structures using a semi-submersible inclined L-type floating dock ship (100) that docks at an onshore quay and ships offshore floating wind power generation structures as cargo,
The semi-submersible inclined L-type floating dock ship (100) is
A pontoon (100-1) that has an overall rectangular shape, has a plurality of internally divided ballasting tanks, floats on the sea, and has a center of gravity located downward to load and secure cargo on the floating, stable, and flat upper surface;
An L-type floating dock stabilizer (101) that is fixedly installed on the pontoon (100-1) and has an overall hexahedral shape;
A transverse ballasting partition wall (107) installed laterally inside the pontoon (100-1) to form a plurality of distinct ballast tanks;
A longitudinal ballasting partition 108 installed longitudinally inside the pontoon 100-1 to form a plurality of distinct ballasting tanks;
Sea chests 105 each installed at the bottom of a plurality of ballasting tanks provided in the pontoon 100-1 and allowing seawater to flow in or out according to a corresponding control signal;
A box-shaped ballast house (102) installed on one selected upper part of the L-type floating dock stabilizer (101);
A ballasting air compressor (103) that is fixedly installed on one side of the ballast house (102) and generates and supplies compressed air in response to a corresponding control signal;
It is poured uniformly at an average thickness of 0.5 m on the bottom of each of the multiple ballasting tanks provided inside the pontoon (100-1) to ensure floating stability by positioning the center of gravity of the pontoon (100-1) downward. mass concrete (109);
A ballast compressed air pipe and control valve (104) installed in each of the ballast tanks and selectively introducing compressed air generated by the ballast air compressor (103) in response to a corresponding control signal;
A ballast discharge air pipe and control valve (106) installed in each of the ballast tanks and selectively discharges the compressed air flowing into the ballast tanks according to a corresponding control signal; An offshore shipping system for offshore floating wind power generation structures using a semi-submersible inclined L-type floating dock ship.
According to claim 1,
Offshore floating wind power generation structures are
A pontoon that has a flat shape and generates buoyancy, two or more outer columns installed vertically on the outer part of the pontoon, and one in the central part of the pontoon. Marine floating substructure (1) comprising a center column on which the dog is installed vertically and a deck that flatly connects the upper side of the outer column and the center column );
The marine floating substructure (1) is composed of an upper tower (B) installed vertically in the central part and a power generation unit (A) installed at the upper end of the upper tower (B) and including a propeller and a generator. Floating overhead tower and turbine (2); An offshore shipping system for offshore floating wind power generation structures using a semi-submersible inclined L-type floating dock ship.
According to claim 1,
It is fixedly installed on the outer surface of the pontoon (100-1) of the semi-submersible inclined L-type floating dock ship 100 or a part of the land quay so that the semi-submersible inclined L-type floating dock ship 100 is attached to the land quay. A fender (53) that alleviates the impact caused by docking at a portion; An offshore shipping system for floating wind power generation structures using a semi-submersible inclined L-type floating dock further comprising:
According to claim 3,
A link plate (55) installed on the upper side of the fender (53) and flatly connecting the upper surface of the pontoon (100-1) and the upper surface of the land quay wall; An offshore shipping system for floating wind power generation structures using a semi-submersible inclined L-type floating dock further comprising:
According to claim 2,
The semi-submersible inclined L-type floating dock ship (100) is installed at the bottom of the offshore floating substructure (1) and docked on the land quay from the land quay to the offshore floating wind power generation structure by the corresponding control signal. Mass transportation device (57) that moves the pontoon (100-1) to the upper surface; An offshore shipping system for floating wind power generation structures using a semi-submersible inclined L-type floating dock further comprising:
According to claim 2,
The offshore floating wind power generation structure is provided on a portion of the upper surface of the pontoon (100-1) and is moved to the upper surface of the pontoon (100-1) by the mass transport device (57). A support bar 56 is raised to this seated state and supported and installed in a fixed state; An offshore shipping system for floating wind power generation structures using a semi-submersible inclined L-type floating dock further comprising:
According to claim 2,
The L-type floating dock stabilizer 101 is 1/5 the length of the pontoon 100-1, has an overall hexahedral shape, and is fixedly installed at both ends of the pontoon 100-1. An offshore shipping system for offshore floating wind power generation structures using a semi-submersible inclined L-type floating dock ship.
According to claim 2,
The L-type floating dock stabilizer 101 is installed at two ends in the longitudinal direction, separated over 1/2 the length of the pontoon 100-1, and each has an overall hexahedral shape, and the pontoon 100-1 ) An offshore shipping system for floating wind power generation structures using a semi-submersible inclined L-type floating dock ship, characterized in that it is fixedly installed on both ends of the ship.
According to claim 8,
A pedestal crane (110) installed in a pedestal manner on top of one of the two L-type floating dock stabilizers (101) and operated by a corresponding control signal;
A pedestal crane spot (111) installed on the upper side of the L-type floating dock stabilizer (101) and stabilizing the boom of the pedestal crane (110); An offshore shipping system for floating wind power generation structures using a semi-submersible inclined L-type floating dock further comprising:
According to claim 2 or 9,
Skid rails 51 each installed in parallel at equal intervals on the upper surface of the land quay and the upper surface of the pontoon 100-1;
A link beam (52) connecting the skid rail (51) of the land quay and the skid rail (51) of the pontoon (100-1) in a horizontal state, respectively;
One or more units are installed at the bottom of the offshore floating substructure (1), and the offshore floating wind power generation structure is installed on the pontoon (100-1) along the skid rail (51) and link beam (52) by the corresponding control signal. An active shoe (50) that moves to the upper surface of; An offshore shipping system for floating wind power generation structures using a semi-submersible inclined L-type floating dock further comprising:
According to claim 10,
It is provided inside the active shoe 50, and while the offshore floating wind power generation structure is moved to the upper surface of the pontoon 100-1, the offshore floating wind power generation structure is separated from the active shoe 50. Hydrojack seated on the support (56); An offshore shipping system for floating wind power generation structures using a semi-submersible inclined L-type floating dock further comprising:
According to claim 2,
A mooring line (60) consisting of a plurality of which one end is connected and fixedly installed at each of the four corners of the semi-submersible inclined L-type floating dock ship (100) and the other end is connected and fixedly installed to a portion of the land quay wall; An offshore shipping system for floating wind power generation structures using a semi-submersible inclined L-type floating dock further comprising:
In the launching method of the offshore loading system for offshore floating wind power generation structures using a semi-submersible inclined L-type floating dock ship that docks at the land quay and loads the offshore floating wind power generation structures as cargo,
A manufacturing step of manufacturing a plurality of offshore floating wind power generation structures on the land quay;
A mooring step of anchoring the semi-submersible inclined L-type floating dock ship to the land quay by placing a fender and fixing it with a mooring line;
A ballasting step of maintaining the plane of the semi-submersible inclined L-type floating dock ship docked by placing a fender on the land quay parallel to the plane of the land quay by ballasting;
A moving loading step of moving and loading the offshore floating wind power generation structure from the land quay to the upper surface of the pontoon of the semi-submersible inclined L-type floating dock using a moving means;
A return step of returning the moving means of the moving loading step from the semi-submersible inclined L-type floating dock ship to the land quay;
A launch installation step of towing the semi-submersible inclined L-type floating dock ship to a designated location on the sea and launching and installing the loaded offshore floating wind power generation structure on the sea; A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock ship.
The L-type floating dock stabilizer (101) ensures stability during shipping and launching of the offshore floating wind power generation structures (1, 2), and each pontoon is within L/5 of the length of the pontoon (100-1). A semi-submersible inclined L type that is installed at both ends of the outside, or the total length of the L-type floating dock stabilizer (101) is installed over L/2 of the length of the pontoon (100-1) on one side of the outside of the pontoon (100-1). Marine loading system launching method for offshore floating wind power generation structures using floating dock ships.
According to clause 14,
The shipping method is determined according to the subtype of the mass transport device (57) or the marine floating substructure (1) utilizing a skid rail (51) and an active shoe (50);
A semi-submersible inclined L-type floating dock ship comprising the step of loading the offshore floating wind power generation structures (1, 2) onto the pontoon (100-1) of the semi-submersible inclined L-type floating dock ship (100). Marine loading system launching method for floating wind power generation structures used.
According to clause 14,
A number of floating wind power generation structures (1, 2) are manufactured near the land quay, a semi-submersible inclined L-type floating dock ship (100) is docked on the quay using a fender (53), and a pontoon (100-1) is built. Inside, lateral and longitudinal ballasting partition walls 107 and 108 are manufactured and installed;
To facilitate the distribution of seawater, a Sea Chest (105) is installed at the bottom of each tank;
The L-type floating dock stabilizer (101) is installed on both sides of the outside of the pontoon (100-1), or the L-type floating dock stabilizer (101) is installed on one side of the outside of the pontoon (100-1) in the longitudinal direction of the pontoon (100-1). Semi-submersible inclined L, which includes the step of installing a pedestal crane (110) on the top of the L-type floating dock stabilizer (101) for equipment operation and a pedestal crane spot (111) for stabilizing the crane boom. Marine loading system launching method for offshore floating wind power generation structures using type floating dock ships.
According to clause 14,
The ballasting house 102 is placed on one side of the upper part of the L-type floating dock stabilizer 101, and a ballasting air compressor 103 is installed inside, and mass concrete (about 0.5 m thick) is placed on the bottom of the pontoon 100-1. 109), placing the center of gravity below and minimizing the KG value (distance from the bottom of the pontoon to the center of gravity) to ensure stability. Off-shore floating using a semi-submersible inclined L-type floating dock ship. Marine loading system launching method for wind power generation structures.
According to clause 14,
A ballasting compressed air pipe and control valve (104) and a ballast discharge air pipe and control valve (106) are installed inside each ballasting tank;
In the case of ballasting in which the lateral and longitudinal ballasting bulkheads 107 and 108 are filled with seawater, the ballasting discharge air piping and control valve 106 are opened to allow seawater to flow in from the Sea Chest 105 for ballasting; At the same time, the ballasting compressed air pipe and control valve 104 are closed;
When externally debalancing water filled with seawater on the transverse and longitudinal ballasting bulkheads (107, 108), air is compressed in the ballasting air compressor (103) to deballast the transverse and longitudinal ballasting bulkheads (107, 108). The internal seawater is sent to the outside of the Sea Chest (105) by adjusting the ballasting compressed air piping and control valve (104) to open and adjust the compressed air to 107, 108, and at the same time, the ballasting discharge air piping and control valve (106) are opened. A method of launching an offshore loading system for an offshore floating wind power generation structure using a semi-submersible inclined L-type floating dock, which includes steps including closing.
According to clause 14,
Balancing and deballasting are used to adjust the upper part of the land quay and the upper part of the pontoon (100-1) to be level, and a link plate (55) is installed to facilitate the movement of the mass transportation device (57) or a link beam. (52) and the skid rail (51) is installed on the land skid rail (51) and the pontoon (100-1) to facilitate movement of the active shoe (50);
The offshore floating wind power generation structures (1, 2) anchored on land are gradually raised onto the semi-submersible inclined L-type floating dock ship (100), and when the additional load on the pontoon (100-1) increases, the ballasting compressed air piping and automatically operating the control valve 104, the ballast discharge air pipe, and the control valve 106 as the moving load changes to continuously keep the upper part of the land quay wall and the upper part of the pontoon (100-1) horizontal; A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock, including:
According to claim 14,
The offshore floating wind power generation structures (1, 2) reach the correct position of the pontoon (100-1) and are seated and installed on the support (56), and the height of the mass transportation device (57) is adjusted to move to the land quay or Alternatively, jacking down the hydro jack mounted inside the active shoe 50 and moving it to the land quay or dismantling it for reuse; A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock, including:
According to claim 14,
For the loading of offshore floating wind power generation structures (1, 2), a semi-submersible inclined L-type floating dock ship (100) is fixed to the land quay with a mooring line (60);
When loading offshore floating wind power generation structures (1, 2), the mooring line (60) is provided to sufficiently resist the horizontal behavior of the semi-submersible inclined L-type floating dock ship (100) due to the horizontal load of waves and wind, which are external loads at sea. determining and mooring the size and quantity of; A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock, including:
According to claim 14,
For offshore floating wind power generation structures (1, 2), the pontoon ( 100-1) It is seated on the support at the upper fixed position and jacked down the wheel hydro jack of the mass transport device (57), or the hydro jack inside the active shoe (50) is jacked down to load the mass transport device (57) or the active shoe. (50) Shipment completion stage in which the internal hydro jack is removed to the land quay; A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock, including:
According to claim 22,
Ballasting and deballasting to complete the loading of offshore floating wind power generation structures (1, 2) and to meet the required draft to operate a semi-submersible inclined L-type floating dock ship (100) up to a launch depth of 27.5 m. The draft is adjusted by adjusting the draft, and when ballasting, the ballasting discharge air piping and control valve (106) are opened, and the ballasting compressed air piping and control valve (104) are closed while sea water is discharged through the Sea Chest (105). When water is poured into the transverse and longitudinal ballasting bulkheads (107, 108) to deepen the draft or to perform deballasting, the ballasting discharge air piping and control valve (106) are closed, and the ballasting air inside the ballasting house (102) is Pressure is supplied using the ballast air compressor (103), and the ballast compressed air piping and control valve (104) is used to connect the horizontal and longitudinal ballast bulkheads (107, 108) through the sea chest (105) in the open state. The seawater is discharged to the outside to lower the draft, and the mooring line (60) is removed from the semi-submersible inclined L-type floating dock ship (100) and placed on the land quay;
Installing a towing line (59) on a semi-submersible inclined L-type floating dock ship (100) and moving it to the depth required for launching using a tugboat (58); A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock, including:
According to clause 23,
The offshore floating wind power generation structures (1, 2) are submerged to gradually tilt the other side of the L-type floating dock stabilizer (101) and ballast until the offshore floating wind power generation structures (1, 2) become floating, Connect each Towing Line (59) to use the tugboat (58) and avoid colliding with the L-type floating dock stabilizer (101), open the ballast discharge air pipe and control valve (106), and install the ballast compressed air pipe. and a step of deepening the draft by allowing seawater to flow into the transverse and longitudinal ballasting bulkheads (107, 108) through the Sea Chest (105) while the control valve (104) is closed. A semi-submersible slope consisting of the following: Marine loading system launching method for offshore floating wind power generation structures using an L-type floating dock ship.
According to clause 24,
The upper part of the support 56 at the top of the pontoon (100-1) is completely separated from the lower part of the offshore floating wind power generation structures (1, 2), creating a margin of about 1 m, and the slope is adjusted with an L-type floating dock stabilizer ( In order to make it to the other side of the L-type floating dock stabilizer (101), pour water into the horizontal and longitudinal ballasting bulkheads (107, 108) on the other side of the L-type floating dock stabilizer (101), open the ballast discharge air piping and control valve (106), and , With the ballast compressed air pipe and control valve (104) closed, seawater enters the water through the Sea Chest (105), so the draft is gradually deepened to create a slope; A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock, including:
According to clause 25,
The floating wind power generation structures (1, 2) are submerged to give an inclination of 2 to 4° with respect to the opposite side of the L-type floating dock stabilizer (101), and the upper part of the support (56) on the L-type floating dock stabilizer (101) side and the offshore floating wind power When a free space of 1 m is generated at the bottom of the power generation structures (1, 2), a towing line (59) is connected and a tug boat (58) is used to gradually release the semi-submersible inclined L-type floating dock ship (100) to create an offshore floating wind power. Including the step of ballasting the power generation structures (1, 2) until they are floating, connecting each Towing Line (59) to prevent them from colliding with the L-type floating dock stabilizer (101) using the tugboat (58). A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock.
According to clause 26,
With the ballasting discharge air piping and control valve 106 open and the ballasting compressed air piping and control valve 104 closed, seawater flows through the sea chest 105 in the horizontal and longitudinal ballasting bulkheads 107, 108) to deepen the draft, and completely separate the upper part of the support (56) at the top of the pontoon (100-1) from the lower part of the offshore floating wind power generation structures (1, 2), creating a margin of 1 m. In order to make the slope to the other side of the L-type floating dock stabilizer (101), water is poured into the horizontal and longitudinal ballasting bulkheads (107, 108) on the other side of the L-type floating dock stabilizer (101), and the ballasting discharge air piping With the control valve 106 open and the ballasting compressed air piping and control valve 104 closed, seawater is injected through the Sea Chest 105, so the draft is gradually deepened to make the inclination 2 to 4°. , Separating the offshore floating wind power generation structures (1, 2) and the semi-submersible inclined L-type floating dock ship (100) using a tugboat (58); Semi-submersible inclined L-type floating comprising a. Marine loading system launching method for offshore floating wind power generation structures using dock ships.
According to clause 27,
With the offshore floating wind power generation structures (1, 2) submerged, the opposite side of the L-type floating dock stabilizer (101) maintains an inclination of 2 to 4° and a draft line, respectively, to the Towing Line (59). Using a connected tugboat (58), a semi-submersible inclined L-type floating dock ship (100) gradually deviates by more than 50% and an offshore floating wind power generation structure (1,2) ) to each of the Towing Lines (59) and using a tugboat (58) to move the offshore floating wind power generation structures (1, 2) out of the semi-submersible inclined L-type floating dock ship (100); A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock, including:
According to clause 28,
A body maintaining an inclination of 2 to 4° and a draft of the semi-submersible inclined L-type floating dock ship (100), the semi-submersible inclined L-type floating dock ship (100) and the offshore floating wind power generation structure (1, Connect the Towing Line (59) to each 2) and use the tugboat (58) to ensure that the offshore floating wind power generation structures (1, 2) completely escape the semi-submersible inclined L-type floating dock ship (100). step; A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock, including:
According to clause 29,
In a state where the offshore floating wind power generation structures (1, 2) are completely out of the submerged state, the ballasting air compressor (103) in the ballasting house (102) is used to use the compressed air piping and control valve (104) in the lateral direction. and deballasting the water containing seawater by applying pressure to the longitudinal ballasting bulkheads 107 and 108 so that the pontoon 100-1 is raised above sea level to maintain horizontality, and an offshore floating wind power floated on seawater. Floating wind power generation at sea using a semi-submersible inclined L-type floating dock ship, including the step of connecting the power generation structures (1, 2) to the installation site with a towing line (59) and transporting them to a tugboat (58). Marine loading system launching method for structures.
According to clause 30,
In order to adjust the draft line for operating the semi-submersible inclined L-type floating dock ship (100) to the land quay, the water line is adjusted through ballasting and deballasting, and when ballasting, the ballasting discharge air piping is used. And with the control valve (106) open and the ballasting compressed air pipe and control valve (104) closed, seawater is poured into the horizontal and longitudinal ballast bulkheads (107, 108) through the Sea Chest (105). When deepening the draft or performing deballasting, close the ballast discharge air pipe and control valve (106), supply pressure using the ballast air compressor (103) in the ballast house (102), and compress the ballast. In the open state, the air pipe and control valve (104) discharges seawater inside the ballast tank formed by the horizontal and longitudinal ballast bulkheads (107, 108) through the sea chest (105) to the outside to lower the draft. connecting the Towing Line (59) and moving to the land quay using a tugboat (58); A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock, including:
According to clause 31,
To load other offshore floating wind power structures (1, 2), a tugboat (58) is used, docked at the land quay, and then the lateral and longitudinal ballasting bulkheads (107, 108) are filled with seawater. In the case of sting, opening the ballasting discharge air piping and control valve 106 to allow seawater to flow in from the Sea Chest 105 for ballasting, and simultaneously closing the ballasting compressed air piping and control valve 104; Marine loading system launching method for floating wind power generation structures using a semi-submersible inclined L-type floating dock.
According to clause 32,
When externally debalancing water filled with seawater on the ballasting bulkheads 107 and 108 in the lateral and longitudinal directions of the pontoon 100-1, air is compressed in the ballasting air compressor 103 to ballast in the lateral and longitudinal directions. By opening and adjusting the ballasting compressed air piping and control valve 104, compressed air is supplied to the longitudinal ballasting bulkheads 107 and 108, and the internal seawater is sent to the outside of the Sea Chest 105, and at the same time, the ballasting discharge air piping is operated. And closing the adjustment valve 106; A method of launching an offshore loading system for an offshore floating wind power generation structure using a semi-submersible inclined L-type floating dock ship.
According to clause 33,
Using ballasting and deballasting of the semi-submersible inclined L-type floating dock ship (100), it is leveled with the upper part of the land quay and the upper part of the pontoon (100-1), and a link plate (55) is installed to create a mass transportation device ( 57) or the active shoe (50) on the skid rail (51) is moved smoothly, and the offshore floating wind power generation structures (1, 2) stationed on land are connected to the mass transportation device (57) or skid rail ( 51) The semi-submersible inclined L-type floating dock ship (100) is loaded onto the above active shoe (50), and as the additional load on the pontoon (100-1) increases, the ballasting compressed air piping and adjustment valve (104) are installed. By using the ballasting discharge air piping and control valve (106), when the moving load changes, it is automatically activated to continuously maintain the upper part of the land quay and the upper part of the pontoon (100-1) horizontal, and the mooring line (60) is connected to the floating dock. Including the step of suppressing the horizontal movement of the semi-submersible inclined L-type floating dock ship 100 by fixing it to the ship 100 and the land quay, and loading the next offshore floating wind power structures 1 and 2. A method of launching an offshore loading system for floating wind power generation structures using a semi-submersible inclined L-type floating dock.