Novel isolation barge and isolation berthing system

Abstract

The invention provides a novel isolation barge and an isolation berthing system. The novel isolation barge comprises: a square lower structure; the lower structure is completely immersed in water; the lower structure is internally provided with two groups of lower ballast assemblies which are symmetrically arranged about the longitudinal center line, and each group of lower ballast assembly comprises a plurality of lower ballast tanks which are symmetrical about the transverse center line of the lower structure; the two side protection assemblies are arranged on the two transverse opposite sides of the lower structure respectively. The plurality of upper buoyancy tanks are arranged at the top of the lower structure; the multiple upper buoyancy tanks are symmetrically arranged on the two opposite sides of the longitudinal center line of the lower structure, and the upper buoyancy tanks on each side are symmetrical about the transverse center line of the lower structure. Wherein the upper part of the upper buoyancy tank is at least 1m above the water surface; the ratio of the height of the upper buoyancy tank to the height of the lower structure is 1: (0.8-1).

Description

Technical Field

[0001] The present invention relates to the technical field of ship berthing, and in particular to a novel isolation barge and an isolation berthing system. Background Art

[0002] At present, buoys, rubber fenders or isolation barges are usually placed between the buoy and the dock to ensure the safety of the buoy and the dock.

[0003] Among them, the buoy generally floats on the water surface and changes with the tide level, and is positioned by ropes and dock bollards or on-board bollards. Rubber fenders are generally dock equipment, which have been installed when the dock is built. Generally, dock rubber fenders are used when ships enter and leave the port for a short period of berthing. The advantages of berthing with buoys or rubber fenders are flexible adjustment, low cost, and effective protection of the floating body and the dock. The specifications and quantity of buoys or rubber fenders are usually determined according to the berthing force, and are evenly distributed between the parallel surfaces between the floating body and the dock. The isolation barge is usually rectangular in shape and is divided into multiple cabins. The isolation barge is generally fixed in the flat area of ​​the bow and stern of the floating body. The isolation barge is connected to the dock bollards or to the bollards on the floating body through bollards and cables to ensure that the isolation barge and the floating body will not deviate significantly during mooring.

[0004] Floating balls, rubber fenders or isolation barges can be applied to ship-type products because the hull has a large parallel midbody and can be berthed stably. However, there are the following limitations for berthing of oil and gas platforms with special shapes: the oil and gas platform is composed of pontoons and columns, and there is no large smooth surface for contact. If the isolation barge is placed against the column, there will be interference from pipes or outfitting parts such as fairleads on the column side and it cannot be placed against it. If it is placed against the pontoon of the oil and gas platform, because the oil and gas platform takes into account the water depth and stability of the dock when berthing at the dock, the draft is generally slightly lower than the upper surface of the pontoon, and the isolation barge is squeezed by the platform and there is a risk of jumping onto the pontoon of the oil and gas platform. Summary of the invention

[0005] The object of the present invention is to provide a new type of isolation barge and isolation berthing system applicable to oil and gas platforms, so as to solve the problems in the prior art.

[0006] In order to solve the above technical problems, the present invention provides a new type of isolation barge, comprising:

[0007] The lower structure is square in shape; the lower structure is completely immersed in water; two groups of lower ballast assemblies are arranged symmetrically about the longitudinal center line in the lower structure, and each group of lower ballast assemblies includes a plurality of lower ballast tanks symmetrically about the transverse center line of the lower structure;

[0008] Two side protection components are arranged on two opposite sides of the lower structure;

[0009] A plurality of upper pontoons are arranged on the top of the lower structure; the plurality of upper pontoons are symmetrically arranged on opposite sides of the longitudinal centerline of the lower structure, and the upper pontoons on each side are symmetrical about the transverse centerline of the lower structure;

[0010] The upper part of the upper pontoon is at least 1m above the water surface; the ratio of the height of the upper pontoon to the height of the lower structure is 1:(0.8-1).

[0011] In one embodiment, the sum of the cross-sectional areas of the plurality of upper pontoons is greater than 24% of the cross-sectional area of ​​the lower structure.

[0012] In one embodiment, an upper ballast tank is provided inside the upper buoyancy tank.

[0013] In one embodiment, the upper buoyancy box is detachably arranged on the top of the lower structure;

[0014] A plurality of fixing plates are provided on the top of the lower structure, and fixing holes are provided on the fixing plates. A connecting plate is protruding outward from the bottom of the upper pontoon, and connecting holes are provided on the connecting plate. Fasteners are passed through the fixing holes and the connecting holes to realize the connection between the lower structure and the upper pontoon.

[0015] In one embodiment, the novel isolation barge comprises a plurality of mooring piles, and the top of each buoyancy box is provided with the mooring pile;

[0016] The mooring pile is in a cross shape.

[0017] In one embodiment, the lower portion of the upper buoyancy tank is at least 1m below the water surface;

[0018] The height of the lower structure is 3-6m; the height of the upper pontoon is 3-6m.

[0019] In one embodiment, the side protection assembly includes at least two protection members spaced apart vertically, each of the protection members includes at least two fenders spaced apart longitudinally, the fenders are rotatably disposed on the outside of the lower structure, and the material of the fenders is rubber;

[0020] The fender is in a cylindrical shape with an axis extending longitudinally.

[0021] The present invention also provides an isolation berthing system, comprising at least one novel isolation barge as described above.

[0022] In one embodiment, the number of the new type of isolation barges is two, and the two new type of isolation barges are symmetrically arranged with respect to the transverse center plane of the platform to be berthed.

[0023] In one embodiment, the novel isolation barge is located within a range of 1 / 3 to 2 / 3 of the length of the buoy along the bow and stern of the platform to be berthed.

[0024] It can be seen from the above technical solution that the advantages and positive effects of the present invention are:

[0025] 1. Due to the design of the upper pontoon, the lower structure can be completely sunk below the water surface. The damping caused by the lower structure being completely sunk to the bottom of the water makes the movement period of the new isolation barge longer than the general wave period, thereby greatly reducing the heave and roll movement of the new isolation barge. The small movement of the new isolation barge is beneficial to the safety of the dock and oil and gas platform when wind and waves come, and reduces the occurrence of collision accidents.

[0026] 2. The lower structure and protective components meet the dock mooring requirements of the oil and gas platform, while avoiding interference between the platform's protruding structure and the dock and equipment on the dock.

[0027] 3. By setting up the upper buoy, the lower structure can dive until it is completely immersed in the water, thereby increasing the contact area with the platform, thereby preventing the entire isolation barge from jumping up.

[0028] 4. The upper buoy is also provided with an upper ballast tank, which can simultaneously carry out large ballast water to the upper ballast tank and the lower ballast tank, thereby realizing rapid adjustment of the draft.

[0029] 5. The detachable connection between the upper pontoon and the lower structure enables the upper pontoon to be adjusted on the lower structure to meet the stability criteria. At the same time, the upper pontoon can be moved to facilitate the layout of the boarding ladder and avoid interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a front view schematic diagram of one embodiment of the novel isolation barge of the present invention.

[0031] Figure 2 It is a top view schematic diagram of one embodiment of the novel isolation barge of the present invention.

[0032] Figure 3 It is a front view schematic diagram of another embodiment of the novel isolation device of the present invention.

[0033] Figure 4 It is a top view schematic diagram of another embodiment of the novel isolation device of the present invention.

[0034] Figure 5 It is a schematic diagram of the main view of the isolation berthing system of the present invention used for berthing a platform.

[0035] Figure 6 It is a top view schematic diagram of the isolation berthing system of the present invention used for berthing a platform.

[0036] The following are the descriptions of the reference numerals:

[0037] 1. New type of isolation barge; 11. Lower structure; 111. Lower ballast tank; 12. Upper pontoon; 13. Fender; 14. Bollard;

[0038] 2. Platform; 3. Pier. DETAILED DESCRIPTION

[0039] Although the present invention can be easily embodied in different forms of embodiments, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification. It should be understood that this description should be regarded as an exemplary illustration of the principles of the invention and is not intended to limit the invention to that described herein.

[0040] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0041] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of various elements of the present invention are not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indications of these directions also change accordingly.

[0042] It should be noted that the external exploration structure of oil and gas platforms is usually large, and usually requires a distance of more than 10 meters to ensure that the exploration structure does not interfere with the edge of the dock and dock equipment such as mobile gantry cranes. Since the diameter of the float or the size of the rubber fender usually cannot reach 10 meters, it cannot be used. Regarding the isolation barge, if the depth of the isolation barge is increased, the cost of the isolation barge will be too high, and the movement performance will be poor, and there will be large heave and pitch movements.

[0043] Therefore, the present application provides a new type of isolation barge, which can stably lean against the oil and gas platform and avoid the phenomenon of jumping onto the buoy of the oil and gas platform. Furthermore, the new type of isolation barge has high stability, and the isolation barge itself is prevented from capsizing in the waves during heave and roll motions. The new type of isolation barge has a simple structure and low cost.

[0044] The new isolation barge is not only suitable for oil and gas platforms, but also can be applied to ships and other platforms.

[0045] Combination Figure 1-Figure 4The new isolation barge 1 includes a lower structure 11, two side protection components and a plurality of upper pontoons 12. The lower structure 11 is completely submerged in water, the two side protection components are used to abut against the dock 3 and the oil and gas platform 2 respectively, and the upper pontoons 12 are arranged on the lower structure 11 to provide buoyancy, so that the entire new isolation barge 1 can have a greater diving depth, so that the lower structure 11 can be fully submerged, so that there is more contact area between the new isolation barge 1 and the oil and gas platform 2, and the entire new isolation barge 1 is prevented from rising.

[0046] The lower structure 11 is in a square shape. Specifically, the cross section of the lower structure 11 is in a rectangular shape.

[0047] For the convenience of description, the length direction of the lower structure 11 is defined as the longitudinal direction, the width direction as the transverse direction, and the height direction as the vertical direction.

[0048] Two groups of lower ballast assemblies are arranged in the lower structure 11 symmetrically about the longitudinal center line. Each group of lower ballast assemblies includes a plurality of lower ballast tanks 111 symmetrically about the transverse center line of the lower structure 11 .

[0049] It should be noted that the longitudinal centerline refers to a line extending in the longitudinal direction and passing through the center of the rectangle. The transverse centerline refers to a line extending in the transverse direction and passing through the center of the rectangle. That is, in the present application, the longitudinal centerline of the lower structure 11 can be understood as a symmetry axis extending in the longitudinal direction, and the transverse centerline can be understood as a symmetry axis extending in the transverse direction.

[0050] Each set of lower ballast assemblies includes a plurality of lower ballast tanks 111 , and therefore the lower structure 11 includes at least four lower ballast tanks 111 .

[0051] refer to Figure 2 and Figure 4 In this embodiment, the number of lower ballast tanks 111 is four. When ballasting, a diagonal loading method is adopted: the lower ballast tank 111 in the upper left corner of the figure is defined as the first lower ballast tank 111, the upper right corner is the second lower ballast tank 111, the lower right corner is the third lower ballast tank 111, and the lower left corner is the fourth lower ballast tank 111. If the diagonally distributed first lower ballast tank 111 and the third lower ballast tank 111 are ballasted at the same time, after the first lower ballast tank 111 and the third lower ballast tank 111 are full of water, the second lower ballast tank 111 and the fourth lower ballast tank 111 are ballasted at the same time until the required draft. The diagonal ballasting method can prevent the lower structure 11 from becoming unstable and overturning.

[0052] The design of four lower ballast tanks 111 reduces the number of lower ballast tanks 111 while meeting stability requirements, thereby reducing construction costs. Due to the reduction in compartments, the moving time of water pumps and pipes is avoided, thereby reducing the time for ballast loading.

[0053] Specifically, the height of the lower structure 11 is 3-6 m.

[0054] The side protection components are arranged on opposite sides of the lower structure 11. The side protection components include at least two protection members arranged at intervals in the vertical direction. Each protection member includes at least two fenders 13 arranged at intervals in the longitudinal direction. The fenders 13 are rotatably arranged on the outer side of the lower structure 11, and the material of the fenders 13 is rubber.

[0055] At least two protective members arranged at intervals along the vertical direction can fully contact the buoy of the large platform 2, that is, increase the contact area between the platform 2, thereby avoiding upward movement.

[0056] In this embodiment, the number of fenders 13 is twelve, six on each side. The six fenders 13 are arranged in an array of two rows and three columns. In other embodiments, the number of fenders 13 on each side can also be four, eight or other numbers, which are specifically set according to actual needs.

[0057] The number and size of the fenders 13 are designed according to the size of the overall isolation barge, ensuring that at least two rows of fenders 13 are arranged vertically on each side. The height of the lower structure 11 is designed to meet the installation space of the multiple layers of fenders 13.

[0058] The fenders 13 on both sides make the contact between the new isolation barge 1 and the wall of the dock 3 and the outer plate of the oil and gas platform 2 flexible, avoiding direct contact between the lower structure 11 and the steel plate of the oil and gas platform 2 or the lower structure 11 and the dock 3.

[0059] The fender 13 is cylindrical in shape with its axis extending longitudinally, which is conducive to accommodating the relative movement between the floating platform 2 and the lower structure 11 and the relative movement between the dock 3 and the lower structure 11 .

[0060] The fender 13 is hollow inside and is sleeved on a rotating shaft arranged outside the lower structure 11 , so as to achieve a rotatable connection with the lower structure 11 .

[0061] A plurality of upper pontoons 12 are disposed on the top of the lower structure 11. The plurality of upper pontoons 12 are symmetrically disposed on opposite sides of the longitudinal center line of the lower structure 11, and the upper pontoons 12 on each side are symmetrical about the transverse center line of the lower structure 11.

[0062] Therefore, the number of the upper pontoons 12 is at least four. In this embodiment, the number of the upper pontoons 12 is four. They are arranged in a 2×2 array. Figure 1 , four upper pontoons 12 are arranged at the four corners of the lower structure 11. Figure 3, four upper pontoons 12 are arranged in the middle area of ​​the lower structure 11. In other embodiments, the number of the upper pontoons 12 can also be six, eight or other numbers, and the specific arrangement method is arranged according to actual conditions.

[0063] The upper portion of the upper pontoon 12 has at least 1 m located above the water surface, and the lower portion of the upper pontoon 12 has at least 1 m located below the water surface.

[0064] The ratio of the height of the upper pontoon 12 to the height of the lower structure 11 is 1:(0.8-1). The height of the upper pontoon 12 and the top of the upper pontoon 12 having at least 1m reserved as freeboard are to ensure the stability of the entire new isolation barge 1, reduce heave and roll, and avoid capsizing. The lower part of the upper pontoon 12 is at least 1m below the water surface, so that the lower structure 11 is completely immersed in water. Therefore, the lower structure 11 plays a damping role underwater, significantly reducing the shaking and heave motion of the isolation barge. At the same time, by setting the height ratio between the upper pontoon 12 and the lower structure 11, the overall mass distribution of the new isolation barge 1 is effectively changed, thereby changing the natural period of the roll and pitch motion, making the natural period of the motion away from the general wave period, thereby avoiding resonance and reducing the amplitude of the roll and pitch motion.

[0065] Specifically, the height of the upper pontoon 12 is 3-6 m.

[0066] Further, the sum of the cross-sectional areas of the plurality of upper pontoons 12 is greater than 24% of the cross-sectional area of ​​the lower structure 11. Exemplarily, four upper pontoons 12 with the same structural dimensions are arranged on the lower structure 11, the cross-section of the upper pontoons 12 is square, the cross-sectional area of ​​the upper pontoons 12 is S1, and the cross-sectional area of ​​the lower structure 11 is S2, that is, S1>S2×24%. The cross-sectional area here refers to the product of the longitudinal dimension of the upper pontoons 12 and the transverse dimension of the upper pontoons 12. The cross-sectional area of ​​the lower structure 11 refers to the product of the longitudinal dimension of the lower structure 11 and the transverse dimension of the lower structure 11.

[0067] The design of the area of ​​the upper buoyancy tank 12 further improves the stability of the entire new isolation barge 1.

[0068] The upper ballast tank is preferably provided inside the upper pontoon 12. That is, the new type of isolation barge 1 can also adjust the draft with the assistance of the upper pontoon 12. When rapid ballast water is required to make the lower structure 11 completely immersed below the water surface, the lower ballast tank 111 and the upper and lower ballast tanks 111 can be ballasted with water at the same time. Alternatively, by ballasting water in the upper ballast tank, the draft of the entire new type of isolation barge 1 is made deeper. Alternatively, in the case of smaller draft requirements, only the lower ballast tank 111 diagonally distributed in the lower structure 11 can be filled with water, and then the upper pontoon 12 can be used to ballast water to adjust the draft.

[0069] Therefore, the design of providing the upper ballast tank on the upper buoy 12 provides more ways to adjust the draft of the novel isolation barge 1 and can also increase the diving speed.

[0070] The upper pontoon 12 is detachably arranged on the top of the lower structure 11. By making the upper pontoon 12 detachable from the lower structure 11, the connection at the current position of the upper pontoon 12 can be released and moved to other positions for connection, so as to realize the movement of the upper pontoon 12. Thus, when the pontoon structure and the cables interfere, the position of the upper pontoon 12 can be changed to avoid interference with the mooring cables and the boarding ladder of the oil and gas platform 2.

[0071] Specifically, a plurality of fixing plates are provided on the top of the lower structure 11, and fixing holes are provided on the fixing plates. A connecting plate is protruding outward from the bottom of the upper pontoon 12, and connecting holes are provided on the connecting plate. Fasteners are inserted into the fixing holes and the connecting holes to realize the connection between the lower structure 11 and the upper pontoon 12. The fasteners can be pins, or bolts and nuts, which can be selected according to actual needs.

[0072] The novel isolation barge 1 comprises a plurality of mooring bollards 14. A mooring bollard 14 is arranged on the top of each buoyancy box.

[0073] The mooring pile 14 is in a cross shape. Specifically, the mooring pile 14 includes a vertical rod extending in the vertical direction and a horizontal rod extending in the horizontal direction, and the vertical rod and the horizontal rod are perpendicular to each other to form a cross shape.

[0074] The mooring pile 14 can be used to moor the cable from multiple directions. Compared with a single-column mooring pile, the cross-shaped mooring pile 14 can adapt to the pulling of cables at different angles, making it easier for the water workers at the dock 3 to find a suitable mooring position. The unique cross structure of the cross-shaped mooring pile 14 allows the cable to be wound around the pile body in an "8" cross pattern, which can more effectively prevent the cable from slipping off the pile than a single-column mooring pile. When impacted by wind, waves, and currents, the new isolation barge 1 can be firmly moored to the dock 3 to ensure safety.

[0075] In summary, the novel isolation barge 1 in this application has the following advantages:

[0076] 1. Due to the design of the upper pontoon 12, the lower structure 11 can be completely sunk below the water surface. The damping caused by the lower structure 11 completely sinking into the water makes the movement period of the new isolation barge 1 greater than the general wave period, thereby greatly reducing the heave and roll movement of the new isolation barge 1. The small movement of the new isolation barge 1 is beneficial to the safety of the dock 3 and the oil and gas platform 2 when wind and waves come, and reduces the occurrence of collision accidents.

[0077] 2. The lower structure 11 and the protective components are used to meet the mooring requirements of the oil and gas platform 2 at the pier 3, while avoiding interference between the protruding structures of the platform 2 and the pier 3 and the equipment on the pier 3.

[0078] 3. By providing the upper buoyancy box 12, the lower structure 11 can be submerged completely in the water, thereby increasing the contact area with the platform 2, thereby preventing the entire isolation barge from rising.

[0079] 4. The upper buoy 12 is also provided with an upper ballast tank, which can simultaneously carry out large ballast water in the upper ballast tank and the lower ballast tank 111, thereby realizing rapid adjustment of the draft.

[0080] 5. The detachable connection between the upper pontoon 12 and the lower structure 11 enables the position of the upper pontoon 12 on the lower structure 11 to be adjusted to meet the stability criterion. At the same time, the upper pontoon 12 can be moved to facilitate the layout of the boarding ladder and avoid interference.

[0081] The present invention also provides an isolation berthing system, comprising at least one novel isolation barge 1 as described above.

[0082] The number of new isolation barges 1 can be selected according to the size of the platform 2 to be berthed. For example, when the size is small, one new isolation barge 1 can be used. When the size is large, two or even three new isolation barges 1 can be used.

[0083] Specifically, there are two new isolation barges 1, which are symmetrically arranged with respect to the transverse center plane of the platform 2 to be berthed. And the new isolation barge 1 is no larger than 1 / 3 of the length of the bow and stern of the buoy of the platform 2.

[0084] The new type of isolation barge 1 is located in the middle area of ​​the buoy of the platform 2 to be moored along the length direction. Preferably, the new type of isolation barge 1 is located in the interval of 1 / 3 to 2 / 3 of the length of the buoy of the platform 2 to be moored along its bow and stern. That is, the buoy is divided into three equal parts along the bow and stern length to obtain two end areas and a middle area, and the new type of isolation barge 1 is set in the middle area.

[0085] For example, see Figure 5 and Figure 6 , taking a certain oil and gas platform 2 berthing at a wharf 3 as an example to illustrate the new isolation barge 1 in this application. The length of the oil and gas platform 2 is 111.6m, the width is 70m, the height of the pontoon is 9.5m, and the draft is 8.6m. There are two new isolation barges 1, and they are arranged at intervals within the range of 1 / 3 to 2 / 3 of the length of the pontoon along its bow and stern. The draft of the new isolation barge 1 is 5m.

[0086] The specific implementation plan is as follows:

[0087] S1. According to the drawing position and the marking point of Pier 3, tow the two new isolation barges 1 to the predetermined position.

[0088] S2. The lower ballast tank 111 of the novel isolation barge 1 dives by diagonally pressing and carrying water until the required draft is reached and stops.

[0089] S3. Connect the new isolation barge 1 and the dock 3 through cables.

[0090] Specifically, the cables on the pier 3 are adjusted to minimize the displacement of the isolation barge while leaving a certain margin to accommodate the tidal range.

[0091] S4. Position the oil and gas platform 2 to the position marked on the drawing by using a tugboat and an onshore winch, and connect the oil and gas platform 2 to the dock 3 by using a cable.

[0092] Completed the berthing and isolation of an oil and gas platform 2.

[0093] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A new type of isolation barge, characterized in that: include: The lower structure is square in shape; the lower structure is completely immersed in water; two groups of lower ballast assemblies are arranged symmetrically about the longitudinal center line in the lower structure, and each group of lower ballast assemblies includes a plurality of lower ballast tanks symmetrically about the transverse center line of the lower structure; Two side protection components are arranged on two opposite sides of the lower structure; A plurality of upper pontoons are arranged on the top of the lower structure; the plurality of upper pontoons are symmetrically arranged on opposite sides of the longitudinal centerline of the lower structure, and the upper pontoons on each side are symmetrical about the transverse centerline of the lower structure; The upper part of the upper pontoon is at least 1m above the water surface; the ratio of the height of the upper pontoon to the height of the lower structure is 1:(0.8-1).

2. The novel isolation barge according to claim 1 is characterized in that: The sum of the cross-sectional areas of the plurality of upper pontoons is greater than 24% of the cross-sectional area of ​​the lower structure.

3. The novel isolation barge according to claim 1 is characterized in that: An upper ballast tank is arranged inside the upper buoyancy box.

4. The novel isolation barge according to claim 1 is characterized in that: The upper buoyancy box is detachably arranged on the top of the lower structure; A plurality of fixing plates are provided on the top of the lower structure, and fixing holes are provided on the fixing plates. A connecting plate is protruding outward from the bottom of the upper pontoon, and connecting holes are provided on the connecting plate. Fasteners are passed through the fixing holes and the connecting holes to realize the connection between the lower structure and the upper pontoon.

5. The novel isolation barge according to claim 1 is characterized in that: The novel isolation barge comprises a plurality of mooring piles, and the top of each buoyancy box is provided with the mooring pile; The mooring pile is in a cross shape.

6. The novel isolation barge according to claim 1 is characterized in that: The lower part of the upper buoyancy box has at least 1m below the water surface; The height of the lower structure is 3-6m; the height of the upper pontoon is 3-6m.

7. The novel isolation barge according to claim 1 is characterized in that: The side protection assembly includes at least two protection members arranged at intervals along the vertical direction, each of the protection members includes at least two fenders arranged at intervals along the longitudinal direction, the fenders are rotatably arranged on the outer side of the lower structure, and the material of the fenders is rubber; The fender is in a cylindrical shape with an axis extending longitudinally.

8. An isolated berthing system, characterized in that: The invention comprises at least one novel isolation barge as claimed in any one of claims 1 to 7.

9. The isolation berthing system according to claim 8, characterized in that: There are two new-type isolation barges, which are symmetrically arranged with respect to the transverse center plane of the platform to be berthed.

10. The isolated berthing system according to claim 8, characterized in that: The novel isolation barge is located within the range of 1 / 3 to 2 / 3 of the length of the buoy of the platform to be berthed along the bow and stern.

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