KR20090022587A - Floating gate dock and vessel construction method thereof - Google Patents

Abstract

A floating gate dock and a vessel are provided to enable a user to use the floating gate dock and a vessel in a near place from a land workplace, improve manufacture efficiency, and realize large concrete block method. A floating gate dock(100) comprises the following units. A main body(110) is formed in a center of a hold(130) wherein a block assembly is built. A plurality of water gates(120,121) hinge-combined with the main body change buoyancy sensitization by opening/closing the gates. A water gate switching unit is formed between the water gate and the main body. The hold is a place where the plural block assembly can be mounted.

Description

FLOATING GATE DOCK AND VESSEL CONSTRUCTION METHOD THEREOF

The present invention relates to a floating hydrological dock and a method for building a vessel thereof.

In general, a dock is a facility built in a shipyard or a port to build and repair a ship. The dock has a length, width, and depth sufficient to allow a ship to enter and close to the sea having a sufficient depth for launching the ship. There are dry docks and floating docks that dig ground to connect with the sea, reinforce the side walls and floors with reinforced concrete or piles, and install dock gates at the entrance.

As shown in Fig. 1, the floating dock according to the prior art has a yaw type by vertically connecting side walls 2 on both sides of the bottom 1 when looking at the cross-section thereof. It is a kind of steel box ship which has a cross section and has a tank or cells 1a, 2a, 2b made of a plurality of compartments inside the bottom 1 and the side wall 2.

What is formed in plural to inflow and outflow of ballast water or seawater from the bottom part 1 is called the bottom cell 1a, and the corner part corresponding to the connection point of the bottom part 1 and the side wall part 2 is formed. Also formed in plural to allow the inflow, outflow of seawater, etc. are called side cells (2a, 2b).

The floating dock according to the prior art does not have a sluice that can seal or open the bow or stern side respectively, so that the hold 3 corresponding to the drying work space of the bottom part 1 and the side wall part 2 ( hold) has a structural feature that is open in the bow stern direction.

The floating dock according to the prior art is a sluice valve of a dock feeder, which is a type of gate valve. To the bottom cell 1a or the side cells 2a and 2b, and then settle down.

The submerged floating dock puts the ship structure in the hold (3), and then discharges the seawater of the injected bottom cell (1a) or the side cells (2a, 2b) to the outside of the floating dock and floats with the ship structure. It is structured to be done.

However, compared to the conventional dry dock, the floating dock according to the prior art does not require the foundation work and can be moved, but also has the following obvious disadvantages.

For example, the conventional docking dock has a problem in that when a heavy block for oversized ships is mounted, such as a large block, the load is concentrated at a corresponding mounting position, and the docking dock is warped or sag occurs.

In addition, since the flotation dock of the prior art depends solely on the bottom cell 1a and the side cells 2a and 2b for its floating or sinking, the sea area in which at least the water depth s is about 16 meters. The height (t) of the bottom cell (1a) and the side cells (2a, 2b) has a disadvantage that can be used to form relatively thick to about 8 meters or more.

Depth (s) means the depth from sea level to sea bottom.

In addition, when the conventional docking dock is made relatively thin, it provides only a buoyant deficiency corresponding to the combined load of the overweight of the large block and the block assembly together with its own weight, making marine shipbuilding impossible.

In addition, the floating dock of the prior art has a disadvantage that it is impossible to perform the marine vessel construction operation in the sea less than 16 meters depth due to its structural disadvantages.

Thus, the floating dock of the prior art has a problem of relatively low marine production efficiency because it is located far from the land workshop with a large block.

In addition, the conventional docking dock has a disadvantage in that the shipbuilding capacity is relatively low because it can not use the hundreds of tons of Goliath crane pre-installed in the shipyard.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, having a water gate coupled to open and close at the fore and aft of the main body, the sea depth is relatively low and large in the vicinity of the land workshop It is a technical task to provide a floating hydro dock and its method of building a ship that can realize the block construction method and greatly increase the capacity of marine production.

As described in detail below, an object of the present invention is to provide a plurality of block assemblies in a buried hydrologic dock for sea-drying a block assembly of a ship structure by connecting at least one block. A main body having a sub-election structure having a hold, which is a dry working space in the center, having a relatively thin lower portion corresponding to a low water depth, and having a hinge for opening and closing; A plurality of sluices coupled to the main body through the hinge to change buoyancy increase and decrease through opening and closing; It is achieved by a buoy hydrological dock comprising a; hydrological opening and closing means coupled between the hydrology and the body.

In addition, in order to achieve the object of the present invention, in the ship building method of the floating hydrological dock for sea-drying the block assembly of the vessel structure by connecting at least one block, the floating hydrological dock docked in the low water area Mooring step; A block mounting step of mounting a ship building block in the hold of the main body of the anchored floating hydrostatic dock; A block assembly step of drying the block assembly by interconnecting the mounted blocks; A first water injection step for introducing seawater into the lower cell structure and the side cell structure of the main body; A second water injecting step of introducing seawater into the hold of the main body in a state where the water gate of the main body is closed; A hydrological opening step of opening the hydrological door coupled to the main body; A float-off step in which seawater is filled in the main body due to the opening of the water gate, so that separation between the main body and the block assembly occurs and the block assembly floats; A launching step of launching the block assembly through an open sluice; A hydrologic closing step of closing the open hydrologic gate; A first drainage step of discharging the seawater introduced into the hold of the main body to the outside; There is provided a vessel drying method of a sluice hydrological dock comprising a second drainage step of discharging the seawater introduced into the lower cell structure and the side cell structure of the main body to the outside.

Therefore, according to the present invention, the floating hydrological dock and its shipbuilding method are used for ballasting the floating or sinking of the floodgate, the main water and drainage of the seawater, and the lower cell structure and the sidecell structure of the main body. Or de-ballasting, there is an advantage that can be carried out in the construction of marine vessels in the low-sea area of only 8 meters depth.

In addition, the buried hydrological dock of the present invention and its shipbuilding method has the advantage that can be maximized marine production efficiency because it can be used in close proximity to the land workshop with a large block.

In addition, the buried hydrological dock of the present invention and its shipbuilding method has the advantage that it can double the shipbuilding capacity because it can not use the hundreds of tons of Goliath crane and marine crane already installed in the shipyard.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, Figure 2 is a perspective view of a buoyant hydrologic dock according to an embodiment of the present invention, Figure 3 is a side view for explaining the gate opening and closing of the embodiment shown in FIG. FIG. 4 is a front view of the bow gate of the embodiment shown in FIG. 2 in an open state, and FIG. 5 is a plan view of the embodiment shown in FIG. In addition, Figure 6 is a cross-sectional view taken along the line A-A shown in Figure 5, Figure 7 is a flow chart of a ship building method using a floating dock according to the present invention.

As shown in FIG. 2, the present invention is disclosed through embodiment 100.

This embodiment 100 is for the construction of at least one ship, floating marine structure, drilling rig, block assembly of the ship structure (hereinafter referred to as block assembly), and other similar to equivalents, the main body of the sub-election structure Float sluice dock equipped with 110 and sluices (120, 121) coupled to the opening and closing or detachable at the fore and aft of the main body 110 to change the buoyancy increase corresponding to the opening and closing and shipbuilding using the same It is understood as a method.

This embodiment 100 is a land and sea-linked ship construction work utilizing a low-sea area (eg, the underwater support portion 200 to other shipyard coastal areas of Fig. 5 or 6) of about 8 meters depth (m) It is also characterized by the ability to carry out or to perform marine vessel construction operations in other low-depth waters.

Land and sea-linked ship construction work can be carried out in the state anchored in the underwater support portion 200 of Figures 5 and 6, it is possible to move to the sea by a plurality of traction ships.

Offshore ship construction is possible in any sea area with a depth of about 8 meters.

The reason why the above drying operations are possible in the low water depth is that the main body 110 has a relatively thin bottom corresponding to the low water depth, and the low buoyancy due to the thin lower portion of the main body 110 may cause mechanical problems. This is because of the retractable gates 120 and 121 formed or removed.

First, the body 110 has a lower portion of a relatively thin height n, such as 2.5 meters.

The main body 110 has a lower cell structure 111 formed inside the lower portion thereof, side cell structures 112 formed to be interconnected at both corner portions of the lower cell structure 111, and the side cell structures 112. Inside the wall structure 113 and the ballasting or de-ballasting to hold 130 using the lower cell structure 111 and the side cell structure 112 in each of the vertical structure. A buoyancy control device 114 that adjusts buoyancy by pouring or draining seawater.

The buoyancy control device 114 is an operation of generating the first negative buoyancy through the first water, such as ballast for introducing seawater into the lower cell structure 111 and the side cell structure 112, An operation of generating a second negative buoyancy through the second water inflowing seawater into the hold 130 of the body 110, the 120 and 121 is closed, and an operation to generate neutral buoyancy by stopping the inflow and outflow of seawater And, the operation to generate the first positive buoyancy through the first drain to discharge the seawater introduced into the hold 130, and the seawater introduced into the lower cell structure 111 and the side cell structure 112 Either operation of generating a second positive buoyancy through a second drainage, such as deballasting, which is discharged outwards, is used to facilitate diving or sinking or injury.

Here, the first positive buoyancy is preferably designed to be larger than the second positive buoyancy.

This buoyancy control device 114 is linked according to the operation control of the main cockpit 115.

The buoyancy control device 114 includes a plurality of pump devices in charge of water supply or drainage, a plurality of first connection lines connected between one side of the pump device and seawater, a part of the other side of the pump device, and the lower cell structure 111. And a plurality of second connection lines connected between the side cell structures 112 and a plurality of third connection lines connected between the other side of the pump device and the corner inlet / out valves 116a and 116b of the hold 130. .

Corner inlet and outlet valves 116a and 116b are arranged at the inner corner of the body 110 and the bottom surface in contact with the sea surface as close as possible to the sea so as to be used for inflow or discharge of the seawater into the hold 130. .

The first, second and third connection lines extend through the interior of the wall structure 113.

The function of partially submerging the main body 110 such as float off by adjusting the first voice buoyancy and the second voice buoyancy in the buoyancy control device 114 is to be controlled by the main cockpit 115. have.

The main cockpit 115 is installed on the top of the wall structure 113 of the main body 110, and can control a buoyancy control controller, a power supply device, and a plurality of winches 140 connected to the buoyancy control device 114. A winch controller connected to the control panel, the control panel being configured to control operation of all operations.

On the other hand, the main body 110 provides only the second positive buoyancy corresponding to the thin height n of the lower cell structure 111, as described above, when the water gates 120 and 121 are opened, and when the large block is mounted, As a result, the overall positive buoyancy is insufficient.

This lack of overall positive buoyancy is compensated for by the first positive buoyancy of the present invention.

The first positive buoyancy and the buoyancy principle of the general vessel when draining out the water in the hold 130 by the buoyancy control device 114 and its pump device after the closing operation of the water gate (120, 121) in the main body 110 and It was created together.

That is, the total positive buoyancy of the present embodiment 100 is the first positive buoyancy due to the first drainage of the hold 130 after closing the hydrographs 120 and 121, and the lower cell structure 111 and the side cell structure 112. The sum of the second positive buoyancy by the second multiple of, and the implementation of large blocks (eg mega block, giga block, tera block, etc.) even in the low water area where the depth (m) is only about 8 meters Eliminates local constraints on the construction of large vessels.

On the other hand, the winch 140 is installed at the upper corner of the wall structure 113 of the main body 110, respectively, and corresponds to the water gate opening and closing means.

One end of each of the water gate (120, 121) is rotatably coupled to the lower side of the body 110 through a plurality of hinges (122).

Here, the plurality of hinges 122 are coupled to each other along the width direction of the body 110 between the bow side and the stern side lower side of the main body 110 and the water gate (120, 121). At this time, each of the hinge 122 has a separation structure that can play a role of opening and closing the water gate around the hinge shaft member, the one side and the other side of the hinge 122 can be separated according to the mounting of the hinge shaft member. .

One side portion of each hinge 122 is fixed to the lower side of the bow side and the stern side of the body 110, and the other side portion of the hinge 122 is fixed to the water gate (120, 121) side.

This hinge 122 and its disengagement structure allow the water gates 120 and 121 and the body 110 to be opened or closed.

As shown in FIG. 3, the other end of the water gate 120 is connected to the wire 123 through a wire connector.

Each winch 140 serves to open and close the wire 123 by pulling or releasing the corresponding water gate 120.

For example, when the winch 140 winds up the wire 123 by the winding operation, the water gate 120 is closed and when the winch 140 is unwinded to release the wire 123, the water gate 120 is in a state of being assisted by an operator. The gate 120 can be opened by the weight of).

3 and 4, a sealing zone 124, such as a rubber packing, is formed between the water gates 120 and 121 and the main body 110 to maintain airtightness.

The sealing area 124 is formed like a concave shape along the bow side and the stern side of the main body 110, respectively, and extends further to a height higher than at least the heights of the water gates 120 and 121.

Sealing zone 124 is compressed and tight when each water gate 120, 121 is pulled by winch 140 and wire 123 towards body 110 to maintain airtightness.

After the water gates 120 and 121 are in close contact with the main body 110 by the winch 140 and the wire 123, the water gates 120 and 121 and the main body 110 due to an increase in payload due to block mounting. When a portion does not go below the sea level to maintain the neutral buoyancy, the water gate (120, 121) may be in close contact with the main body 110 with the help of water pressure.

In addition, it is preferable that a plurality of fender zones, such as fenders, are provided on the outer side of the main body 110 to prevent impacts.

It is preferable that a plurality of rope fixing parts 118 are further formed on the wall structure 113 of the main body 110.

The rope fixing part 118 may be used for restraining the buoyant hydrologic dock of the present invention to the land or the land fixing point 250 formed around the underwater support part 200 of FIG. 5 or 6 using a rope. .

Referring to FIG. 4, it is preferable that a plurality of support lumbers 119 are arranged on an upper portion of the lower cell structure 111 of the main body 110 in a state where the bow side gate 120 is opened.

The upper and lower thicknesses of each support barn 119 are preferably about 2 meters, and are preferably made of iron.

The corner inlet and outlet valves 116a and 116b are disposed in the lateral direction and in the lower direction, and are connected to the pump device of the buoyancy control device 114 via a third connecting line (not shown) as described above, so that the seawater in the hold 130 is held. Drain out or hold the role 130 serves to introduce the sea water.

As shown in FIG. 5 and FIG. 6, the main body 110 in which the water gates 120 and 121 are closed is anchored to the underwater support portion 200 around the land workshop 270, and the large block of the land workshop 270 is formed. 240 (eg, a mega block) is mounted into the hold 130 of the main body 110, and the mounted large blocks 241 are connected to each other to be built into a large ship.

The underwater support part 200 is installed by flattening the seabed offshore of the shipyard by a well-known underwater concrete structure method, and extends and arranges the rails of the goliath crane 210 on both sides of the underwater support part 200, respectively. Inside 200, sea levels are formed that are the same as or equivalent to the sea level off the coast of the shipyard.

The marine crane 220 or a plurality of towing ships 230, etc., can be approached around the underwater support unit 200, and can be mounted on the sea, and can be freely mounted on land using various shipyard facilities or goliath crane 210. have.

Referring to FIG. 6, in order to protect the main body 110 performing injury or subsidence from the underwater support 200, a plurality of impact attenuation blocks 260 may be provided at the bottom and the inner side of the underwater support 200. 261 and 262 are preferably arranged.

The completed or unfinished dry state, but the ship structure having its own buoyancy may be launched into the water in front of the underwater support portion 200 when the foreclosure gate 120 in the body 110, the opening.

On the other hand, in the state where the rope between the land fixing point 250 and the rope fixing part 118 is dismantled, the traction line 230 has a large block 241 mounted therein and the water gates 120 and 121 are closed. Towing the main body 110 of the submerged support area 200 around the low-sea area, or to move around and anchored around the inner wall of the low-depth sea area, can maximize the turnover of the underwater support 200, narrow land workshop Makes use of 270 more efficient.

Hereinafter, a detailed description will be made step by step for a ship construction method using a sluice hydrostatic dock of the present invention through FIG.

First, a large block such as a mega block is prepared in the land workshop around the underwater support 200 before the anchoring step (S100).

Then, in the anchoring step (S100), the buoyant hydrologic dock of the present invention is anchored at a depth of 8 meters, such as an underwater support or a low water area near the inner wall.

For example, the body of the aquaculture hydro dock can be anchored by rope between its rope anchorage and land anchorage points around the underwater support.

The main body is closed in the shallow water (8 meters depth) of the submersible support part 200 by the water gate and closes the bow side and the stern side of the main body, and since the seawater is missing inside the hold of the main body, the first positive buoyancy mentioned above. In addition, since the water inside the lower cell structure and the side cell structure is drained, the second positive buoyancy is acting together with the first positive buoyancy.

In the block-mounting step (S110), the prepared large block is mounted inside the hold of the main body using a goliath crane of a land workshop or a nearby marine crane.

The load concentration phenomenon of the main body that can occur due to the sequential mounting of blocks is Korean Patent Application No. 10-2002-022008, which is an automatic ballast system and a ballast control method for manufacturing a large vessel in a floating dock filed by the applicant. Resolve using the disclosed ballast.

In the block assembly step S120, the mounted block is interconnected to dry a ship structure or a block assembly (hereinafter, referred to as a block assembly).

Assembly continues until at least the block assembly has its own buoyancy.

When the block assembly is completed according to the predetermined design criteria in the first watering step (S130), the seawater is introduced into the lower cell structure and the side cell structure by the buoyancy control device and the main cockpit to generate the first negative buoyancy.

In this case, the aquaculture hydrologic dock itself sinks corresponding to the increase rate of the first voice buoyancy with the main body mounted on the block assembly.

In the second pouring step (S131), by the buoyancy control device and the main cockpit, seawater flows into the hold of the main body in which the water gate is closed, thereby generating the second voice buoyancy.

In this case, the seawater is gradually filled inside the hold of the main body, but due to the weight of the block assembly, the seawater and the stern side of the bow are immersed in the seawater instead of being separated from the main body and the block assembly by the filled seawater. As a result, the internal and external pressure balance of the hydrologic gate is facilitated.

In the hydrological opening step (S140), by the winch and the main cockpit, the fore side gate or the stern side gate is opened.

In the float-off step (S150), the seawater is filled into the main body due to the opening of the water gate, and the sea level of the hold of the main body and the sea level outside the main body coincide with each other, so that separation between the main body and the block assembly occurs and only the block assembly floats.

At this time, the buoyancy control device and the main control room controls the discharge of the seawater introduced into the lower cell structure and the side cell structure to form a neutral buoyancy while attenuating the settlement of the main body according to the opening of the water gate.

In this case, the main body and the open sluice are located between the injured block assembly and the seabed, where the top of the wall structure of the main body is not submerged, and the sluice is submerged.

In the launching step (S160), the block assembly is towed at sea through the stern space or the stern space where the traction ship is opened to move to the target position of the traction ship.

In the hydrological closing step (S170), the open hydrologic gate of the main body is closed.

At this time, the wall structure of the main body and the upper end of the water gate is located on the water surface.

In the first drainage step (S180) to discharge the seawater introduced into the hold of the main body to generate the first positive buoyancy generated as in the buoyancy principle of the general vessel.

In this case, the body and the sluice gradually rise.

In the second drainage step (S181), as the second positive buoyancy formed by discharging the seawater introduced into the lower cell structure and the side cell structure outwards is combined with the first positive buoyancy, the speed of injury is increased, thereby providing a rapid working environment. This can be done and then a neutral buoyancy is created in the predetermined initial injury state.

In the internal cleanup step (S190), a series of predetermined procedures for preparing the mounting and assembly of other blocks by arranging the inside of the hold after the settlement of the main body in the initial working state is handled.

1 is a perspective view of a buoyant dock according to the prior art.

2 is a perspective view of a buried hydrologic dock according to one embodiment of the present invention.

FIG. 3 is a side view for explaining opening and closing the gate of the embodiment shown in FIG. 2.

FIG. 4 is a front view of the fore gate of the embodiment shown in FIG. 2 in an open state.

5 is a plan view of the embodiment shown in FIG.

FIG. 6 is a cross-sectional view taken along the line A-A shown in FIG. 5.

7 is a flow chart of a ship building method using a floating form dock according to the present invention.

       Description of the main parts of the drawing

100 Example 110 Body

111: lower cell structure 112: side cell structure

113: wall structure 114: buoyancy control device

115: main cockpit 116a, 116b: corner side entrance and exit valve

117: fender zone 118: rope fixing

119: fetish 120, 121: sluice

123: wire 124: sealing area

130: hold 140: winch

200: underwater support 210: goliath crane

220: offshore crane 230: towing ship

240, 241: block 250: land fixed point

260, 261, 262: impact dampening block 270: onshore workshop

Claims (10)

A buoyant hydrologic dock for sea-drying a block assembly of a ship structure by connecting at least one block, It has a sub-election structure in which a hold, which is a dry working space for mounting a plurality of block assemblies, is formed in the center, and has a relatively thin lower portion corresponding to a low water depth, and a hinge for opening and closing. Body having a; A plurality of sluices coupled to the main body through the hinge to change buoyancy increase and decrease through opening and closing; Sluice opening and closing means coupled between the sluice and the main body; An aquaculture hydrologic poison, characterized in that it comprises. The method of claim 1, The main body A lower cell structure formed inside the lower portion of the main body; Side cell structures formed to be interconnected at both corner portions of the lower cell structure; A wall structure erected vertically in each of the side cell structures; Buoyancy installed in the main body to drain or drain seawater to the lower cell structure and the side cell structure, or to drain or drain seawater inside the hold of the main body when the main body is closed by the door. Steering unit; The main cockpit is installed on top of the wall structure of the main body is provided with a buoyancy control controller, a power supply device, a control panel for controlling operation of the winch controller connected to the buoyancy control device; An aquaculture hydrologic poison, characterized in that it comprises. The method of claim 1, The main body has a lower portion of a relatively thin height, such as 2.5 meters, is used in a relatively low water area, such as 8 meters depth. The method of claim 1, And the main body further defines a plurality of rope fixing portions on the upper wall structure thereof. The method of claim 1, And the body has a plurality of fender zones on its outer surface. The sluice opening and closing means And a plurality of winches each installed at an upper corner of the wall structure of the main body so as to wind the wires connected to the sluices. The method of claim 1, The hinge The bow and stern lower side surfaces of the main body to open and close the water gate around the hinge shaft member, or to separate one side portion and the other side portion of the hinge completely from the main body according to the attachment of the hinge shaft member. The hydrological poison dock, characterized in that coupled to each other in plurality between the sluice. The method of claim 1, A buoyant hydrologic dock, characterized in that a sealing zone is formed between the water gate and the body for confidentiality. In the shipbuilding method of the floating hydrological dock to connect the at least one block of the ship structure block assembly in the sea, Anchoring step of anchoring the buoyant hydrologic dock in the low water area; A block mounting step of mounting a ship-building block in the hold of the main body of the anchored hydrologic dock; A block assembly step of drying the block assembly by interconnecting the mounted blocks; A first water injection step for introducing seawater into the lower cell structure and the side cell structure of the main body; A second water injecting step of introducing seawater into the hold of the main body in a state where the water gate of the main body is closed; A hydrological opening step of opening the hydrological door coupled to the main body; A float-off step in which seawater is filled in the main body due to the opening of the water gate, so that separation between the main body and the block assembly occurs and the block assembly floats; A launching step of launching the block assembly through an open sluice; A hydrologic closing step of closing the open hydrologic gate; A first drainage step of discharging the seawater introduced into the hold of the main body to the outside; A second drainage step of discharging the seawater introduced into the lower cell structure and the side cell structure of the main body to the outside; Ship construction method of a floating hydrological dock comprising a. In the float off step By controlling the discharge of the seawater introduced into the lower cell structure and the side cell structure outside to form a neutral buoyancy while attenuating the subsidence of the body according to the opening of the water gate, the main body and the open water gate is the injured block Located between the assembly and the sea floor, the upper portion of the wall structure of the body is not submerged in the water, the method of building a ship of a buoyant hydrological dock, characterized in that the water gate is submerged.

Images