KR101652749B1 - Barge with access offshore cable stayed l-bridge - Google Patents

Abstract

The present invention relates to a barge equipped with an L-shaped approach bridge which can be used for repairing a marine vessel and rescue of a ship generated from the sea and the seabed. The barge equipped with the L-shaped approach bridge includes a barge including a barge body; And a moving truck installed to be able to translate and rotate horizontally to the barge body; The L-type approach bridge including the L-shaped approach bridge installed on the mobile truck makes it possible for the operator to work more easily in water and on the sea.

Description

{BARGE WITH ACCESS OFFSHORE CABLE STAYED L-BRIDGE}

The present invention relates to a barge equipped with an L-shaped approach bridge. More specifically, the present invention relates to a barge equipped with an L-shaped approach bridge which can be used for repairing a ship and lifesaving in the sea and seabed.

FIG. 1 shows a conventional jack-up rig 10.

The deck lifting structure is composed of a floating deck (11, hull) and a lifting leg (12).

In other words, the lifting leg 12 is lifted at the time of moving, and is wet towed while being floated by the floating buoyancy of the floating deck, and is moved to the destination.

Upon reaching the destination, the elevator bridge is lowered by landing on the landing surface by manipulating the landing gear, and the floating deck is elevated up to a height not exceeding the wave height above the sea surface, so that it becomes like a fixed structure.

These deck lifting structures are of the power type and non-power type. Most of them are non-power type and the working depth is about 150m. It has been used mainly for drilling, rather than as a production platform.

For example, before starting the excavation work, the elevating leg is sufficiently penetrated into the bottom of the seabed so as to be landed.

At this time, when the elevator leg is landed on the sea floor and the elevator leg is lowered continuously, the deck is floated above the water surface. At this time, a space is formed between the deck and the water surface, which is called an air gap.

When the air gap reaches a certain height (usually 2 to 5 ft), the preload tank (not shown) is filled with water. The weight of the filled seawater pushes each lifting leg into the bottom of the sea floor.

Lifting equipment such as a crane is mounted on such a conventional deck lifting structure and is used for lifting and loading equipment and materials according to the purpose.

When the excavation work is completed at one point, the floating type deck (11, hull) is descended again, and the buoyant force of the elevating device and the deck is used to pull the elevating leg penetrating into the sea bed and raise the elevating leg to a predetermined position .

The object of the present invention is to provide an access and escape passage for rescuers and people by using an L-shaped approach bridge mounted on a barge, while being able to freely move at sea by using a barge and setting the position of a barge when necessary To provide a barge equipped with an L-shaped approach bridge that can be effectively used for ship repair, lifesaving and the like.

Another object of the present invention is to provide a method of installing an L-shaped approach bridge on a barge set at sea, wherein the L-shaped approach bridge facilitates the approach and escape routes that a diver or a worker can walk, And to provide a barge equipped with an L-shaped approach bridge capable of securing a working space above the sea and working in the sea floor in a stable manner at the seabed.

It is another object of the present invention to provide an L-shaped approach bridge capable of providing hot water to prevent diver from lowering the working efficiency due to low temperature in the sea, thereby providing a safer working environment. .

In order to achieve the above object,

First, a barge including a barge body; And an L-shaped approach bridge capable of continuously refracting the guide rail installed on the barge line body while separately moving the L-shaped approach bridge.

In this case, when the water depth is deep, the barge body is fixed to the ocean using a wire or sinker block. Furthermore, if the water depth is not deep, the lifting leg is used.

In this case, it serves as a floating structure, and when the work is carried out, the lifting leg is lowered to be fixed to the seabed so that a jack-up barge equipped with an L-shaped approach bridge .

The L-shaped approach bridge is guided along the guide rail installed on the barge body, and is movable in the 360-degree horizontal direction. The L-shaped approach bridge is provided with an L Shaped extruded girder connected to the L-shaped approach bridge hinge portion and the L-shaped approach bridge hinge portion, the cable, and the main tower portion.

In this case, the L-shaped extruded girder is formed as a horizontally extruded girder extending horizontally from the sea and an L-shaped vertical girder extending vertically from the end of the horizontally extruded girder.

Further, the horizontal extrusion type girder is extruded forward one by one by the winding of the cable in a state where a plurality of inner extrusion type girders are horizontally folded in the inner side so that they can be extended to a certain length.

Thirdly, in order to stably position and horizontally extend the horizontal extruded girder in the L-shaped extruded girder, the horizontal extruded girder of the L-shaped extruded girder is suspended by a cable And a stable position setting can be performed by the wire rope winding device installed in the barge body and the cable.

Fourth, the horizontal extruded girder and the L-shaped vertical girder of the L-shaped extrusion type girder are formed as an open type box structure in which a brace member is formed, and a work plate having a water hole is formed so as not to be affected by water pressure, Type vertical girder is installed at the end of the horizontal extruded girder so that the operator can easily approach the underwater by the L-shaped structure.

Fifth, a sinker block made of concrete, for example, is landed at a target point by a small-sized crane installed on the barge body. Connect the wire connected to the sinker block with the floating buoy at sea level. After reaching the L-shaped approach bridge, the wire of the buoy and the L-shaped vertical girder of the L-shaped approach bridge are connected to prevent the horizontal swing of the L-shaped approach bridge by the wave, so that the rescue team can work safely. This method is economical because it does not need to extend the entire L-shaped approach bridge to the bottom of the sea floor, thus reducing the cost of manufacturing the L-shaped approach bridge.

Since the barge body is fixed on the sea surface at the required position by using the cable, the sinker block, the lifting leg and the barge body, the influence of the algae and the waves is minimized, and the stable operation and operation of the L- It can be used for necessary ship repair, life saving.

The present invention allows the L-shaped approach bridge to be freely extended horizontally, and the L-shaped vertical girder extends to the seabed so that the operator can more easily approach the required position of the ship sank in the seabed, Lt; / RTI >

In the present invention, a working plate on which a water hole is formed is mounted on the inner side and is digged by an L-shaped vertical girder, so that an underwater worker can perform work while minimizing the influence of water pressure.

FIG. 1 is a photograph of a conventional jack-up rig structure,
FIGS. 2A and 2B are a perspective view and a perspective view of a barge equipped with an L-shaped approach bridge of the present invention,
Figs. 3A, 3B, 3C and 3D are operation flowcharts of a barge equipped with an L-shaped approach bridge of the present invention,
Figs. 4A, 4B and 4C are diagrams illustrating operation of a barge equipped with an L-shaped approach bridge of the present invention. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Barge 100 equipped with L-shaped approach bridge 200 of the present invention]

FIG. 2A is a perspective view of a barge equipped with an L-shaped approach bridge of the present invention, and FIG. 2B is a perspective view of a barge equipped with an L-shaped approach bridge of the present invention.

First, the barge 100 and the L-shaped approach bridge 200 of the present invention will be described with reference to FIGS. 2A and 2B.

The barge 100 includes a barge body 110 and a lifting leg 120.

First, the barge body 110 is a non-powered type or a powered barge, and a lifting and lowering housing 111 is installed on a line and aft side to allow the lifting and lowering leg 120 to pass through. Thus, the lifting and lowering leg 120 is lifted up and down on the lifting housing 111, which may be accomplished by a jack-up device or the like not shown.

2A, the elevating legs 120 are installed at the corners of the barge body 110 to land the elevating leg 120 on the sea floor G so as to be embedded on the bottom surface of the barge body 110, Is set so as to be spaced apart from the water surface by a predetermined height (H).

Accordingly, since the barge body is positioned above the water surface and the barge body 110 is not strongly shaken or unstable on a large wave or algae, the stable operation of the L-type approach bridge 200 installed on the barge body 110 becomes possible.

At this time, when the water depth is deep, the wire 320 and the sinker block 310 shown in FIG. 3B may be used to float the barge body 110 floatably, but the position may be set.

That is, the sinker block 310 is set so as to reach the bottom of the sea using an unillustrated crane provided on the barge body 110 in the accident occurrence area, without landing the elevator foot 120 on the sea floor, The sinker block 310 may be suspended by the wire 320 and the wire 320 may be connected to the barge body 110 to allow the barge body 110 to float floatingly but to set the position.

2A and 2B, the L-shaped approach bridge 200 includes a movable carriage 210, an L-shaped approach bridge hinge 230, an extruded girder 240, a cable 250 and a main tower 260, .

The moving bogie 210 is divided into an upper moving bogie 212 and a lower moving bogie 211 so that the upper moving bogie can be rotated 360 degrees horizontally with respect to the lower moving bogie.

The lower moving carriage 211 is installed to be freely movable by a driving unit (including a rail wheel moving along a guide rail, not shown) along a guide rail 112 previously installed on the barge body 110.

The upper moving carriage 212 is provided with a hoistway portion 215 for winding the main tower portion 260 and the cable 250 at the rear and a work booth 213 and a worker access passage 214 are integrally formed Respectively.

Then, the worker operates the work of the mobile truck 210 on the work booth 213,

The worker access passage 214 serves as a passage through which the operator can easily ride on the extrusion type girder 240 to be described later.

The worker access passage 214 is provided with a passage 214a accessible from the work booth 213 and a passage 214b accessible from the bottom of the barge line 110 and a passage accessible to the extruded girder 240 It is understood that the optical disc drive 214c is provided.

The L-shaped approach bridge hinge 230 includes a hinge block 241 having a hinge hole formed in the rear surface of the extrusion type girder 240 as a hinge block having a hinge hole formed in the front of the upper movement bogie 212 as a hinge block, 2b, while the extruded girder 240 is supported by the cable 250 of the main tower unit 260 with respect to the upper movable carriage 212 by being hinged to each other by pins, .

The extrusion type girder 240 is constituted by a horizontal extruded girder 240a and an L type vertical girder 240b and is provided on an L type approach bridge hinge portion 230 with a hinge block 241 are hingedly connected.

The horizontal extruded girder 240a and the L-shaped vertical girder 240b are each a rectangular box-shaped truss member formed integrally with the vertical member and the upper and lower currents by the brace member so as not to receive a large water pressure even if extended to the seabed Structure.

In the case of the horizontal extrusion type girder 240a, the bottom of the girder 240 is covered with a work footing), so that a space for a worker to walk can be provided. A plate member formed with a plurality of water holes is used.

As shown in FIGS. 2A and 2B, an L-shaped vertical girder housing 240c in the form of a band is installed at the end of the horizontal extruded girder 240a, and an L-shaped vertical girder 240b is inserted into the L- And fixed.

The L-shaped vertical girder 240b is also a rectangular box-shaped truss member and is formed integrally with the vertical member and the upper and lower currents by the brace member so that the L-shaped vertical girder 240b does not receive a large water pressure even if it is extended to the sea floor. 241b and the horizontal girder 242b, which are manufactured in the L shape as a whole.

It is also seen that the horizontal girder 242b is hingedly connected to the hinge block formed in the vertical girder housing by the hinge block at the lower portion of the vertical girder 241b.

Thus, the horizontal girder 242b can be formed to be inclined from the horizontal at the lower part of the vertical girder, so that the horizontal girder 242b can be operated in accordance with the site conditions.

At this time, the horizontal girder 242b is also finished with a footrest (not shown) so as to provide a space for an operator to walk, so that a worker can secure walking safety by a vertical member, Member.

As shown in FIG. 3C, the hot water hose 243 is extended to the horizontal girder 242b so that hot water can be supplied to the horizontal girder 242b so that the operator can be able to compensate for the low water level.

Further, the horizontal extrusion type girder 240a is formed with a plurality of inner extrusion type girders and is wound by the cable 250, so that it is possible to extend the inner extrusion type girder 241a by a required length.

2A and 2B, the cable 250 is installed between the end of the horizontal extrusion type girder 240a and the main tower part 260. Although not shown, the cable 250 is provided with a winding device installed additionally to the barge body 110, It is preferable that the extruding type girder 240 is installed between the molding girders so as to secure the stability of the extruding type girder 240 during extrusion and rotation.

At this time, it is preferable that the cable 250 is capable of stably extruding and supporting the extrusion type girder 240 by using cable, for example,

The main tower unit 260 is a vertical structure having a winding roller on an upper surface thereof so that a cable 250 supporting the extrusion type girder 240 is wound thereon so as to extend upwardly from the rear of the lower moving truck 211 of the moving truck 210 Respectively.

As a result, the L-shaped approach bridge 200 of the present invention allows the operator to pass through the L-shaped vertical girder 240b by the vertical girder 241b and the horizontal girder 242b as shown in FIGS. 2A and 2B, And to provide a stable access to the seabed.

[Working Method of Barge 100 with L-Type Approach Bridge 200 of the Present Invention]

3A, 3B, 3C and 3D illustrate a work flow chart of a barge equipped with an L-shaped approach bridge according to the present invention, wherein the barge line body 110 is supported by a lifting leg 120, (G).

That is, the barge 100 equipped with the L-shaped approach bridge 200 as described above is provided.

2A, the lifting leg 120 of the barge 100 is set to extend upwardly of the lifting housing 111 of the barge body 110 and the guide rail 112 of the barge body 110 So that the movable carriage 210 can be freely positioned and set to a position favorable to the operation.

In addition, the barge body 110 is further provided with an auxiliary guide rail and a work platform, and it can be seen that the barge body 110 is equipped with a room for operation such as a crane or a work for a long time.

Such a barge 100 may be constructed as a non-powered type and towed to the site by a tugboat, but may be moved by its own power.

At this time, although not shown in the accident occurrence area as shown in FIG. 3A, the sinker block may be submerged so as to reach the sea floor, and the sinker block may be suspended by wires to float the accident area where the buoy is installed.

3A, when the barge 100 is towed to a required position, the elevating leg 120 is lowered to land on the sea floor G as shown in FIG. 3A, and the weight of the barge and the preload tank City) is filled with water, and each leg is put on the bottom of the sea floor with the weight of the filled seawater.

At this time, the barge body 110 is lowered by the lifting leg 120 so that the barge body 110 floats above the water surface, so that an air gap can be ensured.

The L-shaped approach bridge 200 is rotated to the side of the barge line body 110 while moving the moving carriage 210 of the barge line body 110 along the guide rail 112, So that the support can be supported by the extrusion of the girder 240.

Next, as shown in FIG. 3B, the inner extruded girder 241a of the extruded girder 240 of the L-shaped approach bridge 200 is extruded to allow the operator to approach the required position.

At this time, the sinker block 310 is submerged in the area where the sinker block 310 reaches the sea floor G, and the buoy 320 is hung with the wire 320 to the sinker block 310, So that it can be identified.

Next, as shown in FIG. 3C, the L-shaped vertical girder 240b of the extrusion type girder 240 is extended downward (downward) and the horizontal girder 242b of the L-shaped vertical girder 240b is lifted and lowered. It can serve as a workbench where horizontal work can be done, so that the diver can reliably dive into the seabed.

When all the operations are completed as shown in FIG. 3D, the extrusion type girder 240 is returned to its original position, and the elevating leg 120 is returned to the upper position to be towed to the barge body 110 Able to know.

[Example of operation of a barge equipped with an L-shaped approach bridge of the present invention]

FIGS. 4A, 4B and 4C are views illustrating an operation of the barge 100 equipped with the L-shaped approach bridge 200 of the present invention.

4A, when the ship 400 sinks, the barge 100 on which the L-shaped approach bridge 200 of the present invention is mounted around the ship 400 is set in a workable state The L-shaped vertical girder 240b is extended to the seabed so that the L-shaped vertical girder 240b is extended so as to be accessible to a desired site, so that the diver can reliably perform a marine operation.

Further, when repairing the ship 400 as shown in FIG. 4B, it is known that the L-shaped vertical girder 240b can be extended to the damaged part of the hull so that the operator can reliably perform the marine work. .

4C, it can be seen that the L-shaped vertical girder 240b can hang the buoy 330 on the plurality of sinker blocks 310 with the wire 320 to approach the accident occurrence area where the buoy is installed. In addition, Accordingly, it can be seen that the diver or the like can be stably operated with the L-shaped vertical girder 240b as close as possible to the portion to be approached in the ship 400 that is sleeping in the water.

It is also known that a support (not shown) is first placed in order to seat the L-shaped vertical girder 240b on the sea floor G and the L-shaped vertical girder 240b is supported on the support, . This allows the L-shaped vertical girder 240b to be stably fixed in water, so that it can be operated without the support B if the tidal current is weak.

In addition, as shown in FIG. 4C, the L-shaped vertical girder 240b is supported by the lower vertical girder 240b, It can be seen that it is possible to make a stable setting by the vertical girder which extends downward from the horizontal girder (which can also be referred to as a method of being supported by the horizontal girder).

Accordingly, the barge 100 equipped with the L-shaped approach bridge 200 of the present invention can quickly perform operations such as maintenance of the vessel (prevention of oil spillage) and lifesaving operation at the desired position in the sea and on the sea floor .

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Barge
110: Barge body
111: lifting housing 112: guide rail
120: lifting leg
200: L-shaped approach bridge
210:
211: lower moving truck 212: upper moving truck
240: Extrusion type girder
240a: Horizontal extrusion type girder
240b: L type vertical girder
241b: Vertical girder
242b: Horizontal girder
240c: L-shaped vertical girder housing
241: Hinge block 242: Operation footrest
243: Hot water hose
250: cable 260: main tower
310: sinker block 320: wire
330: Buoy 400: Vessel

Claims (11)

A barge including a barge body; And
And an L-shaped approach bridge capable of continuously refracting while moving along guide rails provided on the barge body,
The L-shaped approach bridge is a moving bogie moving along the guide rail to the barge body. And an extrusion type girder formed on a front surface of the moving truck, wherein the extrusion type girder is installed so as to be rotatable up and down by an L-shaped approach bridge hinge,
The moving bogie is divided into an upper moving bogie and a lower moving bogie so that the upper moving bogie is rotatable 360 degrees horizontally with respect to the lower moving bogie. The lower moving bogie is movable along guide rails pre- Lt; / RTI >
The extruded girder includes a horizontal extruded girder and an L-shaped vertical girder, and a band-shaped L-shaped vertical girder housing is installed at the end of the horizontal extruded girder and an L-shaped vertical girder is inserted into the L- So that the lower portion of the L-shaped vertical girder can be supported,
Type L-shaped vertical girder housing is provided at an end of an L-shaped vertical girder installed in the horizontal extrusion type girder so that an L-shaped vertical girder is inserted into the L-shaped vertical girder housing, and the L- And the horizontal girder is formed as L-shaped so that the horizontal girder can be formed to be inclined from the horizontal at the bottom of the vertical girder,
The horizontal girder is provided with a foot plate formed by a plate member formed with a plurality of holes and an L-shaped approaching bridge formed by extending a hot water hose. delete delete The method according to claim 1,
A main tower is formed as a vertical structure in which a cable for supporting an extruded girder is wound around a rear portion of the lower moving truck,
The cable is installed between the main tower and the winding device installed on the barge body from the extruded girder, so that the stable setting of the extruded girder is possible. The method according to claim 1,
Wherein the upper moving carriage is provided with a winding portion for winding a cable at a rear side thereof and a work booth and a worker access passage are integrally formed at the front side,
The operator accesses the work booth and maneuveres the work of the moving lorry. The worker access passage allows the operator to easily ride on the extruded girder so that the worker access passage can be accessed from the work booth and from the bottom of the barge Barges equipped with L-shaped approach bridges that allow access to the extruded girders. The method according to claim 1,
The L-shaped approach bridge hinge portion is a hinge block. The hinge block includes a hinge hole formed on a front surface of an upper moving carriage and a hinge hole formed on a rear surface of the extruded girder. The hinge block is hinge- Barges with L-shaped approach bridges that allow the castor girder to be supported by cables in the main tower. delete The method according to claim 1,
The L-shaped vertical girder is equipped with an L-shaped approach bridge capable of supporting a stable setting by being supported by a horizontal girder at the top in a state of being stopped in water without a supporting stand connected to the sea floor. The method according to claim 1,
The horizontal extrusion type girder of the extrusion type girder
An L-shaped accessory bridge which is formed by a box-shaped truss member integrally formed on a front portion of the L-shaped approach bridge hinge portion and which is supported by a cable such that a plurality of inner extrusion type girders are overlapped with each other, Barges with bridges. delete The method according to claim 1,
The barge body,
When the water depth is not deep, a position of the barge body is set by using a lifting / lowering housing formed so that a lifting / lowering leg is inserted so as to be able to land on the sea floor G. When the water depth is deep, A barge with an L-shaped approach bridge that allows the block to be used to set the position of the barge body.

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