A floating quick-mounting and dismounting self-stabilizing offshore operation platform and a construction method thereof

Abstract

The application discloses a floating quick installation and dismounting self-stabilizing offshore operation platform and a construction method thereof, which comprises an adjustable hoop assembly, a cantilever beam, a modular rib beam plate, a detachable fence group, the adjustable hoop assembly is sleeved and tightly fixed on a pile foundation, a plurality of insertion slots for installing the cantilever beam are arranged on the adjustable hoop assembly, an insertion plate is arranged at one end of the cantilever beam, an insertion hole is arranged at the other end of the cantilever beam, an insertion column is arranged on the top surface of the cantilever beam, a floating body is connected to the two sides of the cantilever beam, one end of the plurality of cantilever beams is sequentially inserted into the insertion slots on the adjustable hoop assembly through the insertion plates, the insertion plates are detachably fixed with the adjustable hoop assembly, a fixing hole corresponding to the insertion column is arranged on the modular rib beam plate, the plurality of modular rib beam plates are sequentially inserted with the insertion columns of the cantilever beam through the fixing holes, the plurality of modular rib beam plates are sequentially arranged on the top surface of the cantilever beam, the bottom of the detachable fence group is detachably connected and fixed with the insertion hole on the top surface of the cantilever beam through a quick insertion connector, and a damping support rod is connected between the cantilever beam and the pile foundation.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering, and in particular to a floating, rapidly installable and self-stabilizing offshore operating platform and a construction method thereof. Background Art

[0002] Marine engineering is one of the key development directions in my country's future engineering construction field. Considering the difficulty of offshore assembly, large-scale modular assembly production on shore and large-scale module splicing at sea are the future development directions of marine engineering construction methods.

[0003] The splicing of large modules at sea involves welding between the offshore platform and the pile foundation. Since ships are affected by the ups and downs of waves, it is impossible to complete the welding work onboard. Therefore, a temporary welding platform is set up on the structure to allow workers to focus on the splicing and complete the welding work efficiently and safely.

[0004] At present, the traditional temporary welding platform still has the following shortcomings:

[0005] (1) Lack of lightweight and detachable design for marine engineering, which makes it impossible to assemble quickly in wave conditions by manpower;

[0006] (2) Lack of special design to reduce the corrosion effects of the marine environment and reduce the vibration caused by waves;

[0007] (3) There is a lack of locking devices that can adapt to different pile types. Summary of the Invention

[0008] In view of the above-mentioned technical problems existing in the existing temporary welding platform, the purpose of the present invention is to provide a floating, quickly installable and self-stabilizing offshore operating platform and its construction method. The adjustable hoop assembly can adapt to pile foundations of different diameters, and the cantilever beam, modular rib beam plate, detachable fence group and adjustable hoop assembly in this solution all adopt a convenient and fast detachable connection structure, which can achieve rapid installation and disassembly by manpower in a wave environment, and further set a damping strut between the cantilever beam and the pile foundation, and achieve stable bearing under wind vibration and wave impact through the setting of the damping strut.

[0009] In order to achieve the above-mentioned purpose, the present invention provides a floating, fast-installed, self-stabilizing offshore operating platform, an adjustable hoop assembly, a plurality of cantilever beams, a plurality of modular rib beam plates, and a detachable fence group. The adjustable hoop assembly is sleeved and tightly fixed on the pile foundation, and the adjustable hoop assembly is provided with a plurality of slots for inserting the cantilever beams.

[0010] The cantilever beams are provided with a plug plate at one end and a plug hole at the other end. The top surface of the cantilever beams is provided with plug columns. Both sides of the cantilever beams are connected to floating bodies.

[0011] One end of the plurality of cantilever beams is sequentially inserted into the slots on the adjustable hoop assembly through the insert plate, and the plurality of cantilever beams circumferentially surround the adjustable hoop assembly, and the insert plate and the adjustable hoop assembly are detachably fixed.

[0012] The modular rib beam plates are provided with fixing holes corresponding to the insertion columns, and the modular rib beam plates are sequentially plugged into the insertion columns of the cantilever beams through the fixing holes. The modular rib beam plates are sequentially arranged on the top surface of the cantilever beams and block the gaps between the cantilever beams to form a standing platform;

[0013] The bottom of the detachable fence group is provided with a quick-connect connector corresponding to the plug-in hole on the cantilever beam. The detachable fence group surrounds the edges of several modular rib beam plates and is connected and fixed to the plug-in hole on the top surface of the cantilever beam through the quick-connect connector;

[0014] A damping strut is connected between the cantilever beam and the pile foundation.

[0015] Furthermore, the adjustable hoop assembly includes a first half ring, a second half ring, a hoop shoe,

[0016] The first half ring and the second half ring have the same structure, and the top surface of each half ring is provided with a plurality of slots for inserting cantilever beams. The side walls of the first half ring and the second half ring are provided with slot fixing holes, and the slot fixing holes are connected to the slots;

[0017] A first connecting portion is provided at one end of the first half ring, and a second connecting portion corresponding to the first connecting portion is provided at one end of the second half ring. Both the first connecting portion and the second connecting portion are provided with coaxial through holes, and a rotatable connection between the first connecting portion and the second connecting portion is achieved through a movable connecting member.

[0018] The other end of the first half ring is provided with a third connecting portion, and the other end of the second half ring is provided with a fourth connecting portion corresponding to the third connecting portion. The third connecting portion and the fourth connecting portion are sequentially provided with a plurality of corresponding adjustment holes, so that the first half ring and the other end of the second half ring are connected and fixed by passing the connecting piece through the adjustment hole of the third connecting portion and the adjustment hole on the fourth connecting portion, and a clamping space for clamping the pile foundation is formed between the first half ring and the second half ring. The diameter of the clamping space can be adjusted by connecting the connecting piece with different adjustment holes on the third connecting portion and the fourth connecting portion, so as to adapt to pile foundations of different diameters;

[0019] The hoop shoe is lined on the inner surfaces of the first half ring and the second half ring.

[0020] Furthermore, a plurality of through holes are provided on the top surfaces of the first half ring and the second half ring.

[0021] Furthermore, the hoop boots are weather-resistant rubber hoop boots.

[0022] Furthermore, the cantilever beam is a T-shaped steel or an I-shaped steel, a plurality of hollow holes are provided on the web of the cantilever beam, and floating bodies are fixed on both sides of the web of the cantilever beam;

[0023] A plug-in plate fixing hole corresponding to the slot fixing hole is provided on the plug-in plate at one end of the cantilever beam. One end of the cantilever beam is inserted into the slot through the plug-in plate, and a bolt or a quick-connect pin is passed through the slot fixing hole and the plug-in plate fixing hole to connect the cantilever beam and the first half ring or the second half ring.

[0024] Furthermore, the modular rib beam plate is composed of a support frame and an anti-slip panel with drainage holes. The support frame is composed of several vertical frames and several horizontal frames. The several vertical frames correspond to several cantilever beams respectively. The vertical frames are provided with fixing holes corresponding to the plug columns on the top surface of the cantilever beam. The modular rib beam plate is fixed to the cantilever beam by sleeves of the fixing holes on the plug columns. Several horizontal frames are connected between adjacent vertical frames, and the several vertical frames are connected by horizontal frames. The anti-slip panel with drainage holes is connected to the top of the support frame for people to stand on.

[0025] Furthermore, the detachable fence group is composed of a number of vertical railings corresponding to the cantilever beams and a number of horizontal railings.

[0026] One end of the railing vertical rod is provided with a quick plug connector corresponding to the plug hole at one end of the cantilever beam, and the quick plug connector and the plug hole cooperate with each other to form a quick plug structure, and several railing vertical rods are vertically arranged in sequence and respectively connected to the plug holes on several cantilever beams through quick plug connectors;

[0027] The railing vertical rod is provided with a quick-insert support for connecting the railing cross rod, and both ends of the railing cross rod are provided with a second quick-insert connector corresponding to the quick-insert support. The second quick-insert connector and the quick-insert support cooperate with each other to form a quick-insert structure. Several railing cross rods are respectively connected to the quick-insert supports of two adjacent railing vertical rods through the second quick-insert connectors at both ends to connect several railing vertical rods in sequence.

[0028] Furthermore, one end of the damping strut is hingedly fixed to the cantilever beam through a connecting hole. The damping strut can be placed as a whole in the cantilever beam by rotation to form a folded state, and can be extended out of the cantilever beam by rotation to form an unfolded state. The other ends of several damping struts are connected to a tensionable chain. The tensionable chain connects the damping struts and makes the damping struts as a whole bear force by tensioning, so as to fit tightly with the pile foundation.

[0029] In order to achieve the above-mentioned object, the present invention provides a construction method for a floating, rapidly installable, self-stabilizing offshore operating platform, which is used in any one of the above items, and the construction method comprises:

[0030] S1: On a construction vessel, the first connecting portion and the second connecting portion of one end of the first half ring and the second half ring are movably connected through a movable connecting piece. When approaching the pile edge, the first half ring and the second half ring are placed at a reasonable position on the pile, and the connecting piece is inserted into the adjustment hole of the third connecting portion and the adjustment hole of the fourth connecting portion to connect and fix the other end of the first half ring and the second half ring. The clamping space between the first half ring and the second half ring tightly holds the pile foundation.

[0031] S2: Insert all cantilever beams into the slots one by one, and use bolts or quick-connect pins to pass through the slot fixing holes and the plug-in plate fixing holes to achieve a tight connection between the cantilever beams and the adjustable hoop assembly;

[0032] S3: One end of a plurality of damping struts is hingedly fixed to the web of the cantilever beam through the connection hole, and the other end is fixed to the pile wall of the pile foundation through a tensionable chain;

[0033] S4: The modular rib beam plates are mounted on the plug posts on the top surface of the cantilever beam through the fixing holes, and several modular rib beam plates are fixed to the cantilever beam in sequence;

[0034] S5: Insert the railing vertical bars into the socket holes on the cantilever beam through the quick-insert connectors in sequence and rotate and lock them; at the same time, insert the two ends of the railing crossbar into the quick-insert supports on the railing vertical bars through the second quick-insert connectors to achieve connection with the railing vertical bars;

[0035] S6: When use is completed and ready for disassembly, use multiple lashing slings to fix the ends of the cantilever beams at one end and fix the other end to the fixed structural member. Then remove the movable connector and the corresponding railing crossbar and modular rib beam plate on the connector to expose the movable connector and the connector. Then remove the connector to disconnect the first half ring from one end of the second half ring. Slowly lower the lashing slings through the hoist to move the offshore operating platform as a whole down to the water surface. Drag the offshore operating platform away from the pile foundation, lift it onto the ship and disassemble it piece by piece according to the above installation sequence.

[0036] Compared with the prior art, the floating, rapidly installable, self-stabilizing offshore operating platform and its construction method provided by the present invention have the following beneficial effects:

[0037] (1) The whole structure is made of lightweight, high-strength and corrosion-resistant materials, with high structural reliability;

[0038] (2) Installed at the weld joint of the pile top platform, connected by quick plug, rotary locking, etc., which is simple and fast and can be quickly installed and disassembled;

[0039] (3) The clamps and hoop shoes can be adjusted to accommodate various pile sections; and the damping struts can be used to achieve self-stabilizing bearing under wind vibration and wave impact;

[0040] (4) The lower part contains a float, which can be lowered to the water surface during disassembly, dragged away from the pile body, lifted up and then dismantled on the ship, saving installation and disassembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0042] Figure 1 A schematic diagram of the overall structure of the floating, rapidly installable, self-stabilizing offshore operating platform provided by the present invention;

[0043] Figure 2 A schematic structural diagram of an adjustable hoop assembly in a floating, rapidly installable, self-stabilizing offshore operating platform provided by the present invention;

[0044] Figure 3 A schematic structural diagram of the first half of an adjustable hoop assembly in a floating, rapidly installable, self-stabilizing offshore operating platform provided by the present invention;

[0045] Figure 4 A schematic structural diagram of the second half of the adjustable hoop assembly in the floating, rapidly installable, self-stabilizing offshore operating platform provided by the present invention;

[0046] Figure 5 A schematic diagram of the structure of the cantilever beam in the floating, rapidly installable and self-stabilizing offshore operating platform provided by the present invention;

[0047] Figure 6 A schematic diagram of the structure of modular rib plates in the floating, rapidly installable, self-stabilizing offshore operating platform provided by the present invention;

[0048] Figure 7 A schematic diagram of the structure of a detachable fence group in a floating, rapidly installable, self-stabilizing offshore operating platform provided by the present invention;

[0049] Figure 8 A schematic structural diagram of railing vertical bars of a detachable fence group in a floating, rapidly installable, self-stabilizing offshore operating platform provided by the present invention;

[0050] Figure 9 A schematic structural diagram of railing crossbars of a detachable fence group in a floating, rapidly installable, self-stabilizing offshore operating platform provided by the present invention.

[0051] Illustration:

[0052] Adjustable hoop assembly 100, cantilever beam 200, several modular ribbed beam plates 300, removable fence assembly 400, floating body 500, damping strut 600;

[0053] First half ring 110, first connecting part 111, third connecting part 112, second half ring 120, second connecting part 121, fourth connecting part 122, hoop boot 130, slot 140, through hole 150, adjustment hole 160, slot fixing hole 141, hollow hole 201, plug plate 210, plug plate fixing hole 211, plug hole 220, plug column 230, vertical frame 311, horizontal frame 312, fixing hole 313, anti-slip panel with drain hole 320, railing vertical rod 410, quick plug connector 411, quick plug support 412, railing horizontal rod 420, second quick plug connector 421, tensionable chain 610. DETAILED DESCRIPTION

[0054] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0055] See also Figure 1 , which shows a structural schematic diagram of a floating, rapidly installable, self-stabilizing offshore operating platform provided by the present invention.

[0056] As shown in the figure, the floating, fast-installable, self-stabilizing offshore operating platform provided by the present invention includes four components: an adjustable hoop assembly 100 , a plurality of cantilever beams 200 , a plurality of modular rib plates 300 , and a detachable fence assembly 400 .

[0057] The adjustable hoop assembly 100 is mounted and fixed on the pile foundation. The adjustable hoop assembly 100 is provided with a plurality of slots 140 for inserting the cantilever beam 200.

[0058] The cantilever beam 200 is provided with a plug plate 210 at one end and a plug hole 220 at the other end. The top surface of the cantilever beam 200 is provided with a plug column 230, and the two sides are connected to the floating body 500.

[0059] A plurality of cantilever beams 200 are circumferentially arranged around the adjustable hoop assembly 100. One end of each cantilever beam 200 is sequentially inserted into the slot 140 on the adjustable hoop assembly 100 through the insert plate 210, and the insert plate 210 is detachably fixed to the adjustable hoop assembly 100.

[0060] The modular rib beam plates 300 are provided with fixing holes 313 corresponding to the insertion columns 230. A plurality of modular rib beam plates 300 are sequentially plugged into the insertion columns 230 of the cantilever beams 200 through the fixing holes 313. The modular rib beam plates 300 are sequentially arranged on the top surface of the cantilever beams 200 and block the gaps between the cantilever beams 200 to form a standing platform.

[0061] The bottom of the detachable fence group 400 is provided with a quick-connect connector 411 corresponding to the plug hole 220 on the cantilever beam 200. The detachable fence group 400 surrounds the edges of the modular rib beam plates 300 and is detachably connected and fixed to the plug hole 220 on the top surface of the cantilever beam 200 through the quick-connect connector 411.

[0062] A damping strut 600 is connected between the cantilever beam 200 and the pile foundation.

[0063] Compared with the existing technology, this solution can adapt to pile foundations of different diameters through the adjustable hoop assembly 100, and the cantilever beam 200, modular rib beam plate 300, detachable fence group 400 and adjustable hoop assembly 100 in this solution all adopt a convenient and fast detachable connection structure, so that rapid installation and disassembly by manpower in a wave environment can be achieved, and a damping strut 600 is further arranged between the cantilever beam 200 and the pile foundation, and stable bearing under wind vibration and wave impact is achieved through the setting of the damping strut 600.

[0064] Specifically, such as Figure 2-Figure 4 The adjustable hoop assembly 100 includes a first half ring 110, a second half ring 120, and a hoop shoe 130.

[0065] The first half ring 110 and the second half ring 120 have the same structure. The top surface of each half ring is provided with a plurality of slots 140 for inserting the cantilever beams 200. The side walls of the first half ring 110 and the second half ring 120 are provided with slot fixing holes 141, which are connected to the slots 140.

[0066] In order to reduce the structural weight of the first half ring 110 and the second half ring 120 , a plurality of through holes 150 are defined on the top surfaces of the first half ring 110 and the second half ring 120 .

[0067] A first connecting portion 111 is provided at one end of the first half ring 110, and a second connecting portion 121 corresponding to the first connecting portion 111 is provided at one end of the second half ring 120. Both the first connecting portion 111 and the second connecting portion 121 are provided with coaxial through holes, and a rotatable connection is achieved between the first connecting portion 111 and the second connecting portion 121 through a movable connecting member.

[0068] The movable connecting member is not limited in this solution and can be determined according to actual needs. For example, this example preferably uses a pin shaft, which is used to rotatably connect the first connecting part 111 and the second connecting part 121, so that the first half ring 110 and one end of the second half ring 120 can rotate around the pin shaft.

[0069] A third connecting portion 112 is provided at the other end of the first half ring 110, and a fourth connecting portion 122 corresponding to the third connecting portion 112 is provided at the other end of the second half ring 120. A number of corresponding adjustment holes 160 are provided on the third connecting portion 112 and the fourth connecting portion 122 in sequence. In this way, the first half ring 110 and the other end of the second half ring 120 are connected and fixed by passing the connecting piece through the adjustment hole 160 of the third connecting portion 112 and the adjustment hole 160 on the fourth connecting portion 122, and a clamping space for clamping the pile foundation is formed between the first half ring 110 and the second half ring 120. By connecting the connecting piece to different adjustment holes 160 on the third connecting portion 112 and the fourth connecting portion 122, the diameter of the clamping space can be adjusted, so that it can adapt to pile foundations of different diameters.

[0070] The above-mentioned connecting piece in this solution preferably adopts a quick-insert locking pin, which is inserted into the adjustment holes 160 on the third connecting part 112 and the fourth connecting part 122 in sequence to fix and clamp the other end of the first half ring 110 and the second half ring 120.

[0071] The hoop shoe 130 is lined on the inner surfaces of the first half ring 110 and the second half ring 120 .

[0072] The hoop boot 130 is made of flexible material. In this embodiment, a weather-resistant rubber hoop boot is preferably used to protect the paint surface of the pile foundation, increase friction, and prevent falling. The inclination angle can be changed according to different pile foundation diameters and slopes.

[0073] The adjustable hoop assembly 100 of such a structure cooperates with a plurality of cantilever beams 200 . The plurality of cantilever beams 200 are connected around the adjustable hoop assembly 100 to support a plurality of modular rib plates 300 and a detachable fence assembly 400 .

[0074] like Figure 5 The cantilever beam 200 may be a T-shaped steel or an I-shaped steel, and the cross-sectional height may be adjusted according to the load size. A plurality of hollow holes 201 are provided on the web of the cantilever beam 200, and floating bodies 500 are fixed on both sides of the web of the cantilever beam 200;

[0075] The buoyancy provided by the above-mentioned float 500 can keep the platform floating on the water surface. In this way, when the platform is dismantled, it can be lowered to the water surface, dragged away from the pile body, and then lifted up and dismantled on the ship, saving installation and dismantling time.

[0076] A plug-in plate fixing hole 211 corresponding to the slot fixing hole 141 is provided on the plug-in plate 210 at one end of the cantilever beam 200. One end of the cantilever beam 200 is inserted into the slot 140 through the plug-in plate 210, and a bolt or a quick-connect pin is passed through the slot fixing hole 141 and the plug-in plate fixing hole 211 to connect the cantilever beam 200 to the first half ring 110 or the second half ring 120.

[0077] Further, as Figure 6 The modular ribbed slab 300 is composed of a support frame and a slip-resistant panel 320 with drainage holes, the support frame is composed of a plurality of vertical frames 311 and a plurality of horizontal frames 312, the plurality of vertical frames 311 correspond to the plurality of cantilever beams 200 respectively, the vertical frame 311 is provided with a fixing hole 313 corresponding to the insertion column 230 on the top surface of the cantilever beam 200, the fixing hole 313 is sleeved on the insertion column 230 to fix the modular ribbed slab 300 on the cantilever beam 200, a plurality of horizontal frames 312 are connected between adjacent vertical frames 311, and a plurality of vertical frames 311 are connected through the horizontal frames 312.

[0078] The slip-resistant panel 320 with drainage holes is connected to the top of the support frame for people to stand on.

[0079] The above support frame and slip-resistant panel 320 with drainage holes are preferably made of lightweight high-strength materials, such as aluminum alloy support frames and aluminum alloy slip-resistant panels; the slip-resistant panel 320 with drainage holes can also be made of stainless steel slip-resistant panels.

[0080] Further, as Figure 7-Figure 9 The detachable fence group 400 is composed of a plurality of fence vertical rods 410 corresponding to the cantilever beams 200 and a plurality of fence horizontal rods 420,

[0081] The fence vertical rod 410 is provided at one end with a quick plug connector 411 corresponding to the insertion hole 220 of one end of the cantilever beam 200, the quick plug connector 411 and the insertion hole 220 are provided with a quick plug structure for mutual cooperation, and a plurality of fence vertical rods 410 are vertically arranged in sequence and connected to the insertion holes 220 on a plurality of cantilever beams 200 through the quick plug connectors 411 respectively.

[0082] The rod body of the fence vertical rod 410 is provided with a quick plug support 412 for connecting the fence horizontal rod 420, the fence horizontal rod 420 is provided at both ends with a second quick plug connector 421 corresponding to the quick plug support 412, the second quick plug connector 421 and the quick plug support 412 are provided with a quick plug structure for mutual cooperation, and a plurality of fence horizontal rods 420 are connected to the quick plug supports 412 of the adjacent two fence vertical rods 410 through the second quick plug connectors 421 at both ends respectively, so as to sequentially connect a plurality of fence vertical rods 410.

[0083] The present solution does not limit the quick-insertion structure of the quick-insertion connector 411 and the plug hole 220, and the quick-insertion structure of the second quick-insertion connector 421 and the quick-insertion support 412, which can be determined according to actual needs. For example, the present solution can adopt threaded matching or mortise and tenon matching, and the quick-insertion connector 411 and the plug hole 220 are provided with mutually matching threaded structures, so that the quick-insertion connector 411 and the plug hole 220 are threadedly connected by rotation, and the quick-insertion connector 411 is provided as a tenon, and the hole of the plug hole 220 is provided with a mortise groove corresponding to the tenon, so that the quick-insertion connector 411 is inserted into the plug hole 220 to achieve connection through the mortise and tenon matching;

[0084] The second quick-insert connector 421 and the quick-insert support 412 are the same as those described above and are not described in detail here.

[0085] Furthermore, if Figure 1 One end of the damping strut 600 is hinged and fixed to the cantilever beam 200 through a connecting hole. The damping strut 600 can be placed as a whole in the cantilever beam 200 by rotation to form a folded state, and can be extended out of the cantilever beam 200 by rotation to form an unfolded state. The other ends of several damping struts 600 are connected to a tensionable chain 610, which connects each damping strut 600 and makes each damping strut 600 bear force as a whole by tensioning, so as to fit tightly with the pile foundation.

[0086] Based on the floating, rapidly installable, self-stabilizing offshore operating platform constructed in the above scheme, this scheme also provides its construction method. The construction steps are as follows:

[0087] S1: On the construction vessel, the first connecting portion 111 and the second connecting portion 121 at one end of the first half ring 110 and the second half ring 120 are movably connected through a movable connecting piece. When approaching the pile edge, the first half ring 110 and the second half ring 120 are placed at a reasonable position on the pile, and the connecting piece is inserted into the adjustment hole 160 of the third connecting portion 112 and the adjustment hole 160 on the fourth connecting portion 122 to connect and fix the other end of the first half ring 110 and the second half ring 120. The clamping space between the first half ring 110 and the second half ring 120 tightly holds the pile foundation.

[0088] S2: Insert all cantilever beams 200 into the slots 140 one by one, and use bolts or quick-connect pins to pass through the slot fixing holes 141 and the plug plate fixing holes 211 to achieve a tight connection between the cantilever beam 200 and the adjustable hoop assembly 100;

[0089] S3: One end of the damping strut 600 is hingedly fixed to the web of the cantilever beam 200 through the connection hole, and the other end is fixed to the pile wall of the pile foundation through the tensionable chain 610;

[0090] S4: The modular rib beam plates 300 are mounted on the plug posts 230 on the top surface of the cantilever beam 200 through the fixing holes 313 , and a plurality of modular rib beam plates 300 are fixed to the cantilever beam 200 in sequence;

[0091] S5: Insert the railing vertical rod 410 into the insertion hole 220 on the cantilever beam 200 through the quick plug connector 411 and rotate and lock it; at the same time, insert the two ends of the railing cross bar 420 into the quick plug support 412 on the railing vertical rod 410 through the second quick plug connector 421 to achieve connection with the railing vertical rod 410;

[0092] S6: When use is completed and ready for disassembly, use multiple lashing slings to fix the ends of the cantilever beam 200 at one end and fix the other end to the fixed structural member, then remove the movable connector and the corresponding railing crossbar 420 and modular rib beam plate 300 on the connector to expose the movable connector and the connector, and then remove the connector to disconnect the first half ring 110 from one end of the second half ring 120; slowly lower the lashing slings through the hoist to move the offshore operating platform as a whole down to the water surface; drag the offshore operating platform away from the pile foundation, hoist it onto the ship and disassemble it piece by piece according to the above installation sequence.

[0093] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A floating, rapidly installable, self-stabilizing offshore operating platform, characterized in that: It includes an adjustable hoop assembly, a number of cantilever beams, a number of modular rib beam plates, and a detachable fence group. The adjustable hoop assembly is sleeved and fixed tightly on the pile foundation. The adjustable hoop assembly is provided with a number of slots for inserting cantilever beams. The cantilever beams are provided with a plug plate at one end and a plug hole at the other end. The top surface of the cantilever beams is provided with plug columns. Both sides of the cantilever beams are connected to floating bodies. One end of the plurality of cantilever beams is sequentially inserted into the slots on the adjustable hoop assembly through the insert plate, and the plurality of cantilever beams surround the adjustable hoop assembly in a circumferential direction, and the insert plate and the adjustable hoop assembly are detachably fixed. The modular rib beam plates are provided with fixing holes corresponding to the insertion columns, and the modular rib beam plates are sequentially plugged into the insertion columns of the cantilever beams through the fixing holes. The modular rib beam plates are sequentially arranged on the top surface of the cantilever beams and block the gaps between the cantilever beams to form a standing platform; The bottom of the detachable fence group is provided with a quick-connect connector corresponding to the plug-in hole on the cantilever beam. The detachable fence group surrounds the edges of several modular rib beam plates and is connected and fixed to the plug-in hole on the top surface of the cantilever beam through the quick-connect connector; A damping strut is connected between the cantilever beam and the pile foundation; The adjustable hoop assembly includes a first half ring, a second half ring, a hoop shoe, The first half ring and the second half ring have the same structure, and the top surface of each half ring is provided with a plurality of slots for inserting cantilever beams. The side walls of the first half ring and the second half ring are provided with slot fixing holes, and the slot fixing holes are connected to the slots; A first connecting portion is provided at one end of the first half ring, and a second connecting portion corresponding to the first connecting portion is provided at one end of the second half ring. Both the first connecting portion and the second connecting portion are provided with coaxial through holes, and a rotatable connection between the first connecting portion and the second connecting portion is achieved through a movable connecting member. The other end of the first half ring is provided with a third connecting portion, and the other end of the second half ring is provided with a fourth connecting portion corresponding to the third connecting portion. The third connecting portion and the fourth connecting portion are sequentially provided with a plurality of corresponding adjustment holes, so that the first half ring and the other end of the second half ring are connected and fixed by passing the connecting piece through the adjustment hole of the third connecting portion and the adjustment hole on the fourth connecting portion, and a clamping space for clamping the pile foundation is formed between the first half ring and the second half ring. The diameter of the clamping space can be adjusted by connecting the connecting piece with different adjustment holes on the third connecting portion and the fourth connecting portion, so as to adapt to pile foundations of different diameters; The hoop shoe is lined on the inner surfaces of the first half ring and the second half ring; One end of the damping strut is hinged and fixed on the cantilever beam through a connecting hole. The damping strut can be placed as a whole in the cantilever beam by rotation to form a folded state, and can be extended out of the cantilever beam by rotation to form an unfolded state. The other ends of the damping struts are all connected to a tensionable chain. The tensionable chain connects the damping struts and makes the damping struts as a whole bear force by tensioning, so that they fit tightly with the pile foundation.

2. The floating, rapidly installable, self-stabilizing offshore operating platform according to claim 1 is characterized in that: A plurality of through holes are provided on the top surfaces of the first half ring and the second half ring.

3. The floating, rapidly installable, self-stabilizing offshore operating platform according to claim 1 is characterized in that: The hoop boots are weather-resistant rubber hoop boots.

4. The floating, rapidly installable, self-stabilizing offshore operating platform according to claim 1 is characterized in that: The cantilever beam is a T-shaped steel or an I-shaped steel, a plurality of hollow holes are provided on the web of the cantilever beam, and floating bodies are fixed on both sides of the web of the cantilever beam; A plug-in plate fixing hole corresponding to the slot fixing hole is provided on the plug-in plate at one end of the cantilever beam. One end of the cantilever beam is inserted into the slot through the plug-in plate, and a bolt or a quick-connect pin is passed through the slot fixing hole and the plug-in plate fixing hole to connect the cantilever beam and the first half ring or the second half ring.

5. The floating, rapidly installable, self-stabilizing offshore operating platform according to claim 1 is characterized in that: The modular rib beam plate is composed of a support frame and an anti-slip panel with drainage holes. The support frame is composed of several vertical frames and several horizontal frames. The several vertical frames correspond to several cantilever beams respectively. The vertical frames are provided with fixing holes corresponding to the plug columns on the top surface of the cantilever beam. The modular rib beam plate is fixed to the cantilever beam by sleeves of the fixing holes on the plug columns. Several horizontal frames are connected between adjacent vertical frames, and the several vertical frames are connected by horizontal frames. The anti-slip panel with drainage holes is connected to the top of the support frame for people to stand on.

6. The floating, rapidly installable, self-stabilizing offshore operating platform according to claim 1 is characterized in that: The detachable fence group consists of a number of vertical railings corresponding to the cantilever beams and a number of horizontal railings. One end of the railing vertical rod is provided with a quick plug connector corresponding to the plug hole at one end of the cantilever beam, and the quick plug connector and the plug hole cooperate with each other to form a quick plug structure, and several railing vertical rods are vertically arranged in sequence and respectively connected to the plug holes on several cantilever beams through quick plug connectors; The railing vertical rod is provided with a quick-insert support for connecting the railing cross rod, and both ends of the railing cross rod are provided with a second quick-insert connector corresponding to the quick-insert support. The second quick-insert connector and the quick-insert support cooperate with each other to form a quick-insert structure. Several railing cross rods are respectively connected to the quick-insert supports of two adjacent railing vertical rods through the second quick-insert connectors at both ends to connect several railing vertical rods in sequence.

7. The construction method of a floating, rapidly installable, self-stabilizing offshore operating platform according to claim 1, characterized in that: include: S1: On a construction vessel, the first connecting portion and the second connecting portion of one end of the first half ring and the second half ring are movably connected through a movable connecting piece. When approaching the pile edge, the first half ring and the second half ring are placed at a reasonable position on the pile, and the connecting piece is inserted into the adjustment hole of the third connecting portion and the adjustment hole of the fourth connecting portion to connect and fix the other end of the first half ring and the second half ring. The clamping space between the first half ring and the second half ring tightly holds the pile foundation. S2: Insert all cantilever beams into the slots one by one, and use bolts or quick-connect pins to pass through the slot fixing holes and the plug-in plate fixing holes to achieve a tight connection between the cantilever beams and the adjustable hoop assembly; S3: One end of a plurality of damping struts is hingedly fixed to the web of the cantilever beam through the connection hole, and the other end is fixed to the pile wall of the pile foundation through a tensionable chain; S4: The modular rib beam plates are mounted on the plug posts on the top surface of the cantilever beam through the fixing holes, and several modular rib beam plates are fixed to the cantilever beam in sequence; S5: Insert the railing vertical bars into the socket holes on the cantilever beam through the quick-insert connectors in sequence and rotate and lock them; at the same time, insert the two ends of the railing crossbar into the quick-insert supports on the railing vertical bars through the second quick-insert connectors to achieve connection with the railing vertical bars; S6: When use is completed and ready for disassembly, use multiple lashing slings to fix the ends of the cantilever beams at one end and fix the other end to the fixed structural member. Then remove the movable connector and the corresponding railing crossbar and modular rib beam plate on the connector to expose the movable connector and the connector. Then remove the connector to disconnect the first half ring from one end of the second half ring. Slowly lower the lashing slings through the hoist to move the offshore operating platform as a whole down to the water surface. Drag the offshore operating platform away from the pile foundation, lift it onto the ship and disassemble it piece by piece according to the above installation sequence.

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