KR101131573B1 - Semi-submersible mobile harbor and method for transporting containers using the same - Google Patents

Abstract

A mobile harbor is disclosed for loading or unloading cargo between container ships and cargo ships at sea. The mobile harbors each have a floating support that can be submerged or at least partially exposed above the surface as the buoyancy is adjusted. The mobile harbor has a support for supporting a container ship and a support for supporting a freighter. The support contacts at least some of the loads in contact with the vessel, thereby reducing the relative vertical motion between the vessel and the mobile harbor. In addition, the contact area occupied by the mobile harbor decreases as the floating support is submerged below the surface during the unloading operation. As a result, the rolling movement of the mobile harbor is reduced and stable unloading work can be achieved.

Mobile harbor, mobile harbor, semi-submersible, heave, rolling

Description

Semi-submersible mobile harbor and cargo transportation method using the same {SEMI-SUBMERSIBLE MOBILE HARBOR AND METHOD FOR TRANSPORTING CONTAINERS USING THE SAME}

The present invention relates to a semi-submersible mobile harbor, and more specifically, to a container ship and a cargo ship in the docked state to move up and down with the mobile harbor, and to stably ship at sea by suppressing the rolling movement of the container ship And it relates to a semi-submersible mobile harbor that can perform the unloading operation.

Recently, ships used for maritime transportation such as container ships have become larger. For example, 15,000 TEU container ships are expected to be the main mode of transportation in the future. However, there are not many ports in the world where such large vessels can be encountered, and the construction of these ports is very expensive. In addition, considering the impact of large ports on the surrounding environment, developing new ports is more difficult.

In this regard, Applicant's patent 895,604 proposed a mobile port capable of loading or unloading cargo while anchoring a large vessel offshore. The mobile port disclosed in the above patent can access a large container ship anchored at sea and unload cargo from the container ship to the mobile port and then move back to the port.

Applicant's patent application 10-2008-90655 discloses another way of moving port. The mobile port disclosed in the above application is provided with an unloading module for unloading cargo while maintaining a state of connection with a container ship anchored at sea, and a small transport module for transporting cargo unloaded by the unloading module to a port.

However, the above-mentioned mobile harbors have difficulty in unloading cargo because they move up and down independently from the container ship at sea. In other words, since the port is provided with a breakwater for blocking waves from the outside, the vessel in the docked state does not move up and down with respect to the wharf. Thus, a stable unloading operation can be performed. However, it is difficult to provide facilities such as breakwaters off the pier, so that the container ship and the mobile port each move up and down.

In addition, ships or facilities located in the sea will be rolling along with the vertical movement. In the above-described mobile harbors, since the ship and the mobile harbor individually perform the rolling movement, there is a problem in that the unloading operation becomes difficult as in the case of the vertical movement. In particular, when unloading work is carried out by a crane, the relative rolling motion of the container ship and the mobile harbor should be suppressed when the crane's spreader approaches to grasp the container or to lower the container in the correct position.

The present invention is to solve the above-mentioned problems, when loading or unloading cargo from a ship anchored at sea, to provide a mobile port to reduce the relative movement of the ship and the mobile port to enable a stable loading or unloading operation The purpose.

In addition, an object of the present invention is to provide a cargo transportation method that can reduce the time required when the container ship docks at or moves out of the mobile harbor and enters the next moving route.

In order to solve the above-mentioned problems, according to one embodiment of the present invention, as a mobile harbor for loading or unloading cargo between a container ship and a cargo transport ship at sea, it is possible to individually adjust the buoyancy, by adjusting the buoyancy as a whole Two floating supports which can be submerged below the surface or at least partially exposed above the surface and extend in parallel at regular intervals from each other; Container vessel for connecting the two floating support, and by supporting the at least a portion of the load of the container ship in contact with the bottom of the container ship in the docked state by adjusting the buoyancy of the floating support to prevent the relative vertical movement of the container ship occurs Support; Two deck portions extending in a longitudinal direction of the floating support above each of the floating supports and providing a space for the work of the crew on the upper surface; A plurality of pillars for supporting each deck unit with respect to each floating support, for reducing rolling motion by reducing the water-retaining area when the entire floating support is submerged below the water surface; A double-sided unloading crane provided above the two deck portions and having a plurality of crane upper modules for transferring cargo from both sides of the container ship in a docked state; And a cargo carrier support provided on an outer side of each floating support and supporting at least a portion of the load of the cargo carrier so that a relative vertical movement of the cargo carrier is not generated. Is provided.

According to another aspect of the present invention, a method of loading and unloading cargo between a container ship and a freight ship at sea by using the aforementioned semi-submersible mobile harbor, comprising: (a) docking of the container ship support portion connected to the floating support; Lowering the floating support by adjusting the buoyancy of the floating support so as to be located below the bottom of the container ship; (b) after the containership is docked, raising the floatation support by adjusting the buoyancy of the floatation support such that the containership support portion contacts at the bottom of the containership to support at least a portion of the load of the containership; (c) a cargo using a semi-submersible mobile harbor comprising the step of loading or unloading cargo between a container ship in a docked state and a cargo carrier in which at least a part of the load is supported by the cargo carrier support; Shipping methods are provided.

According to another aspect of the present invention, a method of loading and unloading cargo between a container ship and a freight ship at sea by using the above-mentioned semi-submersible mobile harbor, comprising: (a) a state in which the freight carrier support is located below the water surface; Moving the freight line upwards of the freight line support; (b) adjusting the buoyancy of the cargo carrier to contact the bottom of the cargo carrier with the cargo carrier support so that at least a portion of the load of the cargo carrier is supported by the cargo carrier; (c) a cargo transport method using a semi-submersible mobile harbor comprising the step of loading or unloading cargo between a container ship docked in a mobile harbor and a cargo carrier supported by the cargo carrier support; Is provided.

Mobile harbor according to the present invention, when loading or unloading cargo from a vessel anchored at sea, it is possible to stable loading or unloading operation by reducing the relative movement of the vessel and the mobile port.

In addition, since the mobile harbor can rotate and move in the lateral direction, the time required when the container ship docks at the mobile harbor or escapes from the mobile harbor and enters the next moving path.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

As shown, the mobile harbor 1 according to an embodiment of the present invention connects two floating supports 12 and 14 and floating supports 12 and 14 that extend in parallel at regular intervals to each other and is a container ship. (2) is provided on the container ship support portion 20, the deck portions 32 and 34 disposed above each of the floating supports 12 and 14, and the floating supports 12 and 14, so that the deck portions 32, 34, a plurality of pillars 40, a cargo carrier support unit extending outward from the sides of the lifting port unloading crane 50 and the floating support (12, 14) installed above the deck (32, 34) (60).

The mobile harbor 1 has two floating supports 12, 14 extending in parallel at regular intervals from each other. Floating supports 12 and 14 provide buoyancy to the mobile harbor 1 so that the mobile harbor 1 can float on the sea. When the mobile harbor 1 is tilted from side to side, the two floating supports 12 and 14 may individually adjust the buoyancy to adjust the posture. In addition, in order to adjust the posture in the longitudinal direction of the mobile harbor (1), each of the floating support (12, 14) can adjust the buoyancy applied in the longitudinal direction differently. To this end, each floating support 12, 14 is provided with a plurality of ballast tanks disposed along the longitudinal direction.

Floating support (12,14) may be submerged under the water surface or at least a portion of the surface is exposed to the surface by adjusting the buoyancy. For example, when the container ship 2 docks to the mobile harbor 1, the floating support 12, 14 is lowered to submerge the surface of the water to release the flow of seawater generated when the container ship 2 enters. When the container ship 2 moves in the docked state in the mobile harbor 1, the floating support 12 and 14 are raised to expose a portion of the floating support 12 above the surface of the water. In order to reduce the resistance during the movement of the mobile harbor (1), it is preferable that both ends in the longitudinal direction of the floating support (12, 14) has a streamlined shape.

In addition, the floating support (12, 14) in cooperation with the container ship support portion 20 to be described later to make the mobile harbor (1) and the container ship (2) docked to perform the same heavy motion (mobile harbor 1) To allow the crane of the container ship 2 to reliably load or unload cargo.

The container support 20 connects two floating supports 12 and 14 to maintain the structural rigidity of the mobile harbor 1 and supports the docked container ship 2. In this embodiment, the container support 20 is composed of a plurality of bridges 22 connecting the floating support 12, 14 below the floating support 12, 14. Both floating supports 12 and 14 are connected by the bridge 22 so that the mobile harbor 1 has a torsion resistant structure. The length of the bridge 22 determines the distance between the floating supports 12, 14, and the width of the ship that the mobile harbor 1 can dock.

When the buoyancy of the floating support 12,14 is increased after the container ship 2 docks, the container ship support part 20 pushes the container ship 2, and the container ship 2 docked with the mobile harbor 1 is carried out. ) Will move up and down together in contact with each other. That is, when the buoyancy of the floating support (12,14) is increased, the floating support (12,14) and the bridge 22 connected thereto rises. The raised bridge 22 contacts at the bottom of the container ship 2 in the docked state to support at least a part of the load of the container ship 2. As a result, the container ship 2 does not move up and down relative to the mobile harbor 1.

While the container ship 2 is docked to the mobile harbor 1 or when it is disengaged from the mobile harbor 1, the container support portion must be separated from the bottom of the container ship 2. Accordingly, the container ship 2 is moved after the buoyancy of the floating supports 12 and 14 is reduced to lower the floating supports 12 and 14 and the bridge 22 connected thereto.

Since the container ship support portion 20 is in direct contact with the bottom of the ship, it is preferable to provide an impact mitigating member to prevent damage to the bottom. In the present embodiment, the upper surface of the bridge 22 is provided with an antiglare 24 (fender) to mitigate the impact upon contact with the bottom. The anti-glare part 24 may be made of a material having elasticity such as rubber, or may have a structure in which a chamber containing a gas is provided therein to absorb shocks.

The deck portions 32 and 34 extend along the longitudinal direction of the floating supports 12 and 14 above the respective floating supports 12 and 14. The upper surfaces of the deck sections 32 and 34 provide space for the crew to work or temporarily load cargo. Also, as shown, a deck house 36 may be provided for crew of the mobile harbor 1 to stay.

Each deck portion 32, 34 is supported by a plurality of pillars 40 extending upwardly from the top surface of each floating support 12,14. In this embodiment, the pillars 40 have a generally cylindrical shape, and each of the deck portions 32 and 34 is supported by four pillars 40 along the longitudinal direction of the floating supports 12 and 14. The pillars 40 at least partially support the loads of the decks 32, 34 and cranes disposed above the decks 32, 34. While the container ship is docked to the mobile harbor (1), the floating support (12, 14) is lowered below the water surface so that the middle portion of the pillar 40 is flush with the water surface. Accordingly, since the flow of seawater generated by the container ship 2 being docked is discharged to the outside through the space between the pillars 40, the vortex phenomenon can be prevented, and the mobile harbor 1 and the container ship 2 ) Relative movement is reduced. In addition, the loading and unloading operation of the container ship 2 is performed with the floating support 12 and 14 completely submerged below the water surface. In this case, the contact area with the sea surface which the pillars 40 occupy becomes smaller than the contact area which the floating support bodies 12 and 14 occupy. For reference, the area of the cross section cut by the ship along the water line is referred to as the water line area. Accordingly, the difference in both buoyancy of the mobile harbor 1 due to the wave is reduced and the rolling motion is greatly reduced. Therefore, stable loading and unloading work can be performed.

The double-sided unloading crane 50 is provided above the deck portions 32 and 34 and includes a plurality of crane upper modules 54 for transferring cargo from both sides of the container ship 2 in a docked state. Since it is unloaded from both sides of the container ship (2) it has a double unloading efficiency compared to the case of unloading only on one side. In addition, as shown, the crane is preferably provided with a plurality of guides 52 for guiding the crane upper module 54 along the longitudinal direction of the mobile harbor (1). In this case, since the loading or unloading work can be performed simultaneously along the longitudinal direction of the container ship 2, the work efficiency greatly increases. In order to enable both unloading and loading, each guide portion 52 preferably has two crane upper modules 54.

The crane upper module 54 includes, for example, an overhead trolley moving along the guide 52 and a headblock and a spreader holding the container, and a rope connecting the bogie and the headblock. Equipped. Drive the bogie to lower the head block after moving the upper crane module 54 to the container to be unloaded. After holding the container using a spreader, the head block is raised and the bogie is driven to move the crane upper module 54 above the space where the cargo is to be unloaded. For example, the crane upper module 54 moved upward of the cargo transfer line 6 lowers the head block and places the gripped container at the designated position. In this series of operations, the spacing between the mobile harbor 1 and the container ship 2 and the spacing between the mobile harbor 1 and the cargo ship 6 remain constant. However, the lowered head block vibrates to grip or unload the container by the rolling motion of the mobile harbor 1. As one way to solve this problem, the balance of the upper container module can be moved left and right. That is, by applying the control method of the inverted pendulum known in the control field to move the bogie left and right it can be adjusted so that the position of the head block does not significantly change.

Cargo transfer line support 60 is provided on the outer side of each floating support (12, 14). The cargo carrier support unit 60 supports at least a portion of the load of the cargo carrier 6 while loading or unloading the cargo so that the mobile harbor 1 and the cargo carrier 6 move up and down together. This enables stable cargo loading or unloading operations.

The container ship support portion 20 is in contact with the bottom of the container ship 2 by raising the mobile harbor 1 by adjusting the buoyancy of the floating support (12, 14), but the cargo ship support portion 60 is a freight ship Perform this action by adjusting the buoyancy in (6). That is, in the state in which the container ship 2 is docked, the cargo transfer ship support part 60 is arrange | positioned below the bottom of the cargo transfer ship 6. After the freighter 6 moves upward of the freighter support 60, the bottom of the cargo carrier is contacted with the freighter support 60 by adjusting its buoyancy and lowering part of the load. Support). After the container ship 2 is docked in the mobile harbor 1, a number of freight ships 6 must shuttle between the mobile harbor 1 and the wharf, with each freight ship 6 arriving and leaving. Whenever the mobile harbor (1) must be raised or lowered each time, the work efficiency is significantly reduced. Therefore, in order to be supported by the cargo carrier support unit 60 of the mobile harbor 1, the cargo carrier 6 is to be able to adjust the buoyancy itself.

Like the container ship support part 20, it is preferable that the freighter ship support part 60 is equipped with the fender 62 in the part which contacts the ship bottom part. Cargo ship support unit 60 may be composed of a plurality of members arranged along the side of the floating support (12, 14), or may be composed of one connected member extending along the side of the floating support (12,14). In addition, the freight transfer line support unit 60 may further include an apparatus (not shown) for holding the freight transfer line 6 after the freight transfer line 6 contacts. Such a gripping device allows the cargo transfer ship 6 to remain in stable contact with the mobile harbor 1. Preferably, an auxiliary ballast 64 is provided at the outer end of the freighter support 60. The auxiliary ballast 64 provides buoyancy for supporting at least a portion of the load of the freighter 6 or container ship 2.

A side anti-glare device is provided to guide the entry route by contacting both side sides of the container ship 2 while the container ship 2 enters the mobile harbor 1. The side antiglare allows to overcome the adjustment errors that may occur when the container ship 2 docks to the mobile harbor 1. In addition, the side anti-glare device supports both sides of the container ship 2 after docking to suppress the rolling motion of the container ship 2. In the present embodiment, the side antiglare device includes a plurality of side fenders 70 provided along the longitudinal direction on the inner side surfaces of the deck portions 32 and 34.

At least a part of the side fenders 70 is preferably provided with a shock absorbing member made of a material capable of absorbing shock and capable of rotating at an end in contact with the sheath side of the container ship 2. When the container ship 2 docks, the buffer member of the side fender 70 guides the container ship 2 while rotating in contact with the sheath side of the container ship 2. Accordingly, the container ship 2 can be docked without colliding with the mobile harbor 1. The side fender 70 may include a brake device to easily stop the container ship 2 when it reaches a designated position. The brake device can, for example, adjust the side fender 70 to stop the rotation of the shock absorbing member or to apply a force in a direction opposite to the traveling direction of the container ship 2. In addition, each side fender 70 may include an impact damping unit having a mechanical structure as another means for mitigating impact. That is, by providing the impact damping part which consists of a spring and a damper in the site | part connected with the deck parts 32 and 34, the vibration received from the container ship 2 can be partially absorbed.

Mobile harbor 1 according to the present embodiment may be provided with a main thrust providing device using a propeller or the like. Therefore, it is possible to move to the required position by using the self-propulsion. As described above, when the mobile harbor 1 moves, the buoyancy of the floating supports 12 and 14 is increased to move at least a portion of the floating supports 12 and 14 to the surface exposed. In addition, the mobile harbor 1 preferably comprises a thruster 16 for providing lateral thrust. The thruster 16 can move the mobile harbor 1 to a position where the container ship 2 can easily dock by allowing the mobile harbor 1 to rotate or move laterally. In this embodiment, the thruster 16 for providing the transverse thrust to the mobile harbor 1 is provided at both ends in the longitudinal direction of each floating support 12, 14.

Hereinafter, with reference to Figures 4 to 13, by using the mobile harbor 1 according to the above-described embodiment of the present invention for loading and unloading cargo between the container ship 2 and the cargo transport ship 6 at sea The method will be described.

The mobile harbor 1 is located offshore from the land. In particular, it is good to arrange the container ship 2 near the sea lane to which the container ship 2 moves, not far from the pier. The container ship 2 can reduce the time required to enter the pier because the mobile harbor 1 is located on the sea.

When the container ship 2 arrives at a position close to the mobile harbor 1, the mobile harbor 1 performs rotation and lateral movement using the thruster 16 so that the container ship 2 is easy to dock. Go to location. Conventionally, the container ship 2 takes a considerable time, such as to rotate with the help of a tug ship to berthing to the pier. However, since the mobile harbor 1 according to the present invention can be rotated and moved in accordance with the arrangement of the container ship 2, the time required for the container ship 2 to dock in the mobile harbor 1 is reduced.

When the movement to the position to dock is completed, the floating support (12,14) so that the container vessel (2) support portion 20 connected to the floating support (12,14) is located below the bottom of the container vessel (2) to dock Lower the mobile harbor (1) by adjusting the buoyancy of. After the mobile harbor 1 is sufficiently lowered, the container ship 2 is docked to the mobile harbor 1 under the guidance of the side impact relief device having the side fenders 70. When the container ship 2 enters a predetermined position, the brake device of the side impact relief device stops by slowing down the speed of the container ship 2, and docking is completed.

After the containership 2 is docked, the buoyancy of the floating support 12, 14 is adjusted so that the containership support 20 is in contact with the bottom of the containership to support at least a part of the load of the containership 2. To raise the mobile harbor (1). When a part of the load of the container ship 2 is supported, the container ship 2 and the mobile harbor 1 will move up and down together.

In the docked state of the container ship 2, the cargo transfer ship 6 approaches the mobile harbor 1 from the dock. The cargo transfer ship 6 contacts the cargo carrier support 60 by adjusting its buoyancy after arriving above the cargo carrier support 60 of the mobile harbor 1. The cargo transfer line 6 adjusts the buoyancy so that its load is partially supported by the cargo transfer line support 60. In this way, the cargo transfer ship 6 is to move up and down with the mobile harbor (1).

After the two steps above, the mobile harbor (1), the container ship (2) and the cargo transfer ship (6) all move up and down together. Therefore, since the interval between the container ship 2 and the cargo transfer ship 6 from the crane upper module 54 is kept constant, loading and unloading operation can be performed stably. In addition, since the container ship 2 is fixed by the side impact relief device of the mobile harbor 1 in the docked state, rolling motion is suppressed.

On the other hand, the cargo is transported or unloaded with respect to the cargo carrier 6 supported by either one of the cargo carrier support unit 60, or the cargo carrier 6 supported by both cargo carrier support unit 60 If the number is different, the left and right loads applied to the mobile harbor 1 may be out of balance and may be inclined to one side. In this case, the mobile harbor (1) by adjusting the buoyancy of the floating support (12,14) connected to the cargo carrier support (60) or by using an auxiliary ballast 64 connected to the outer end of the cargo carrier support (60) Should be horizontal to the left and right.

In addition, the container ship 2 tends to incline toward the engine along the longitudinal direction because the side where the engine is generally located is heavier. Therefore, when the container ship 2 is inclined toward the engine in the docked state, the mobile harbor 1 is also inclined in the same direction by adjusting the longitudinal buoyancy of the floating supports 12 and 14. Thereby, it can adjust so that the container ship support part 20 may not apply excessive load.

The rolling movement of the container ship 2 relative to the mobile harbor 1 is suppressed by the side impact relief device, but the loading or unloading work when the mobile harbor 1 and the container ship 2 are rolling together Difficulties can follow. In particular, when a strong wave proceeds to the side of the mobile harbor (1), the mobile harbor (1) and the container ship (2) can be a severe rolling movement. In order to prevent this phenomenon, the mobile harbor 1 is preferably rotated using the thruster 16 in a direction orthogonal to the direction of wave propagation while the container ship 2 is docked.

Cargo transfer line 6 is raised by adjusting the buoyancy itself when the loading or unloading operation is completed and fall from the cargo transfer line support (60). The freighter 6 can then transport the cargo to a dock or other required location. The multiple cargo carriers 6 approach or leave the mobile harbor 1 until all the loading or unloading work for the container ship 2 is completed.

After completing the loading or unloading operation, the mobile harbor 1 moves in accordance with the next moving path of the container ship 2. In this case, the mobile harbor 1 can rotate and move horizontally using the thruster 16. Conventionally, it took a considerable time for the container ship 2 to reenter the sea after leaving the wharf. However, when using the mobile harbor 1 according to the present invention, the container ship 2 quickly enters the next moving path. can do.

1 is a perspective view of a semi-submersible mobile harbor according to an embodiment of the present invention,

Figure 2 is a front view showing a state in which the floating support of the mobile harbor shown in Figure 1 submerged below the water surface,

3 is a side view of the mobile harbor shown in FIG. 1;

4 to 8 is a view showing a process of moving in accordance with the arrangement of the container ship to be docked mobile harbor according to the present invention,

9 to 13 are views illustrating a process of docking a container ship in a mobile harbor according to the present invention.

<Description of the symbols for the main parts of the drawings>

1: mobile harbor

12,14: floating support

16: thruster

2: container ship

20: container ship support

22: bridge

24: antiglare

32,34: deck

36: Deck House

40: Pillar

50: Yanghyeon unloading crane

52: guide

54: crane upper module

6: freight carrier

60: cargo carrier support

62: fender

64: secondary ballast

70: side fender

Claims (21)

A mobile harbor for loading or unloading cargo between container ships and freight ships at sea, Buoyancy can be adjusted individually, by adjusting the buoyancy, the whole can be submerged below the surface or at least a portion of the surface exposed, two floating supports extending parallel to each other at regular intervals; Container vessel for connecting the two floating support, and by supporting the at least a portion of the load of the container ship in contact with the bottom of the container ship in the docked state by adjusting the buoyancy of the floating support to prevent the relative vertical movement of the container ship occurs Support; Two deck portions extending in a longitudinal direction of the floating support above each of the floating supports and providing a space for the work of the crew on the upper surface; A plurality of pillars for supporting each deck unit with respect to each floating support, for reducing rolling motion by reducing the water-retaining area when the entire floating support is submerged below the water surface; A double-sided unloading crane provided above the two deck portions and having a plurality of crane upper modules for transferring cargo from both sides of the container ship in a docked state; And Cargo ship support unit is provided on the outer side of each of the floating support, to support the at least a portion of the load of the freight carrier so that the relative vertical movement of the freight carrier does not occur Semi-submersible mobile harbor including. The method according to claim 1, It further includes a side impact relief device for restraining the rolling movement of the container ship by supporting the entrance path by contacting both sides of the container ship when entering the container ship, and by supporting both side sides of the container ship in the entering state. Semi-submersible mobile harbor featuring. The method according to claim 2, The side impact mitigating device is provided with a brake device for reducing the speed of entering the container ship when entering the container ship Semi-submersible mobile harbor featuring. The method according to claim 2, The side impact mitigation device is provided with a plurality in the longitudinal direction on the inner side of each deck portion Semi-submersible mobile harbor featuring. The method according to claim 1, It further comprises a thruster (thruster) is provided at both ends in the longitudinal direction of each of the floating support for providing a lateral thrust to the floating support. Semi-submersible mobile harbor featuring. The method according to claim 1, Each floating support is to be adjusted differently buoyancy applied along the longitudinal direction Semi-submersible mobile harbor featuring. The method according to claim 1, The crane is provided with a plurality of guides for guiding the crane upper module along the longitudinal direction of the mobile harbor Semi-submersible mobile harbor featuring. Claim 8 was abandoned when the registration fee was paid. The method according to claim 1, The crane upper module is provided with two for each guide portion Semi-submersible mobile harbor featuring. The method according to claim 1, It is provided at the outer end of the cargo carrier support, further comprising an auxiliary ballast for providing a buoyancy for supporting at least a portion of the load of the cargo carrier or container ship Semi-submersible mobile harbor featuring. Claim 10 was abandoned upon payment of a setup registration fee. The method according to claim 1, The cargo ship has a buoyancy control function A method of loading and unloading cargo between a container ship and a cargo ship by sea using the semi-submersible mobile harbor according to claim 1, (a) lowering the floating support by adjusting the buoyancy of the floating support so that the container ship supporting portion connected to the floating support is located below the bottom of the container ship to be docked; (b) after the containership is docked, raising the floatation support by adjusting the buoyancy of the floatation support such that the containership support portion contacts at the bottom of the containership to support at least a portion of the load of the containership; And (c) performing a loading or unloading operation of cargo between the container ship in a docked state and the freight ship in which at least a part of the load is supported by the freight carrier support; Cargo transportation method using a semi-submersible mobile harbor comprising a. The method of claim 11, wherein the mobile harbor in step (a) is lowered so that all the floating support submerged below the water surface to discharge the flow of sea water generated by the docking of the container ship to the outside of the mobile harbor, the step (b) And (c) the floats remain submerged below the surface of the water to reduce the repair area of the mobile harbor, thereby reducing the rolling motion of the mobile harbor. Cargo transportation method using a semi-submersible mobile harbor characterized in that. The method according to claim 11, wherein between step (b) and step (c), After the cargo ship moves on the cargo carrier support, the buoyancy is reduced so that the bottom of the cargo carrier contacts the cargo carrier support, so that the cargo carrier support supports at least a portion of the load of the cargo carrier. Further comprising: Cargo transportation method using a semi-submersible mobile harbor characterized in that. Claim 14 was abandoned when the registration fee was paid. 14. The method of claim 13, Gripping the freighter so that it does not deviate from the freighter support after the freighter is in contact with the freighter support; Cargo transportation method using a semi-submersible mobile harbor characterized in that. Claim 15 was abandoned upon payment of a registration fee. The method according to claim 11, before step (a), Cargo transportation method using a semi-submersible mobile harbor characterized in that. Claim 16 was abandoned upon payment of a setup registration fee. The method of claim 11, wherein after step (c), (d) after completing the loading or unloading operation, moving the mobile harbor according to the moving path of the container ship; And (e) adjusting the buoyancy of the floating support to lower the container ship support from the bottom of the container ship so that the container ship can deviate from the mobile harbor. Cargo transportation method using a semi-submersible mobile harbor characterized in that. Claim 17 has been abandoned due to the setting registration fee. The method according to claim 15 or 16, Movement of the mobile harbor includes transverse movement and rotational movement of the mobile harbor Cargo transportation method using a semi-submersible mobile harbor characterized in that. The method of claim 11, wherein step (c) When the load applied to the mobile harbor changes as the cargo is loaded or unloaded for the cargo carrier supported by the cargo carrier support connected to one floating support, the buoyancy of the floating support connected to the other cargo carrier support is changed. Controlling the mobile harbor to be level. Cargo transportation method using a semi-submersible mobile harbor characterized in that. The method according to claim 11, wherein between step (b) and step (c), Rotating the mobile harbor such that the longitudinal direction of the mobile harbor is disposed in a direction orthogonal to the direction of travel of the wave, in order to reduce the rolling motion of the mobile harbor and the container ship caused by the waves. Cargo transportation method using a semi-submersible mobile harbor characterized in that. A method of loading and unloading cargo between a container ship and a cargo ship by sea using the semi-submersible mobile harbor according to claim 1, (a) moving the freight carrier upwards of the freight carrier support in a state in which the freight carrier support is located below the water surface; (b) adjusting the buoyancy of the cargo carrier to contact the bottom of the cargo carrier with the cargo carrier support to support at least a portion of the load on the cargo carrier; (c) performing a loading or unloading operation of cargo between a container ship docked in a mobile harbor and a cargo ship supported by the cargo carrier support; Cargo transportation method using a semi-submersible mobile harbor comprising a. Claim 21 has been abandoned due to the setting registration fee. The method of claim 20, wherein after step (c), After the loading or unloading operation is completed, adjusting the buoyancy of the cargo carrier so that the bottom of the cargo carrier is separated from the cargo carrier support. Cargo transportation method using a semi-submersible mobile harbor characterized in that.

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