Marine all-offshore construction ship docking platform system

Abstract

A marine all-offshore construction ship docking platform system comprises a steel platform fixed to a wharf; the buoyancy tank platform and the steel platform are arranged at an interval, and the buoyancy tank platform is arranged on the water surface in the water area; the crawling ladder is arranged between the buoyancy tank platform and the steel platform, one end of the crawling ladder is hinged to the steel platform, and the other end of the crawling ladder is connected with the top face of the buoyancy tank platform in a rolling mode; the floating box platform is connected to the positioning piles in a sliding mode.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a berthing platform system for offshore construction vessels. Background Technology

[0002] With the development of technology, offshore engineering construction has become routine, and the construction of various offshore bridges is in full swing. With the development of bridge technology, many bridges have been built to cross bays or span long distances at sea. Bridges are developing towards large spans and deep-water foundations. As bridges are built in the sea, many projects with fully offshore construction conditions have emerged.

[0003] Traditional offshore engineering projects typically involve constructing piers to connect the construction site to the shore, where platforms are then erected for various construction activities. This approach has several drawbacks: the construction site is often far from the shore, making pier construction costly; constructing piers in deep water is challenging; in geological environments with shallow overburden, the pier's steel pipe piles have limited depth, resulting in long cantilever sections and instability; and in areas affected by shipping channels, piers cannot be easily extended. Furthermore, excessively long pier platforms can negatively impact the ecological environment and affect the flow resistance coefficient. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a berthing platform system for offshore construction vessels.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fully offshore construction vessel berthing platform system, characterized in that it includes:

[0007] A steel platform, fixed to the dock;

[0008] A floating platform is provided at an interval from a steel platform, and the floating platform is located on the water surface in the water area;

[0009] A ladder is installed between the floating platform and the steel platform, one end of which is hinged to the steel platform, and the other end of which is rolledly connected to the top surface of the floating platform; and

[0010] Several positioning piles are provided, and the floating platform is slidably attached to the positioning piles.

[0011] Furthermore, the ladder includes at least two parallel main beams, with a number of steps distributed between the two main beams, and handrails on both sides of the steps.

[0012] Furthermore, the steel platform includes a plurality of steel pipe piles arranged in an array, with a distribution beam on the top of each steel pipe pile, and a trestle bridge laid between adjacent steel pipe piles, the trestle bridge being located on top of the distribution beam.

[0013] Furthermore, the top of the trestle is provided with several H-beams, the top of the H-beams is provided with a base plate, and the base plate is provided with guardrails.

[0014] Furthermore, the floating platform structure includes floating box bodies connected in sequence, and longitudinal ribs and transverse ribs are welded to the outer surfaces of several floating box bodies, the longitudinal ribs and transverse ribs forming a grid-like fixed frame.

[0015] Furthermore, the ends of two adjacent pontoon bodies are provided with corresponding limiting grooves, and the two limiting grooves close to form a limiting opening, and the positioning pile slides into the limiting opening.

[0016] Furthermore, the ladder is equipped with rollers near the floating platform, and a pad is arranged on the top surface of the floating platform, with the rollers rotatably connected to the pad.

[0017] Furthermore, the steel platform is provided with a first connecting plate, and the end of the ladder away from the roller is provided with a second connecting plate. The first connecting plate and the second connecting plate are hinged together by a pin.

[0018] Furthermore, several of the positioning piles are arranged in an array, and a limiting rod is provided between two adjacent positioning piles. The horizontal height of the limiting rod is less than the top surface height of the steel platform.

[0019] Furthermore, anti-collision tires are arranged at intervals on the outer side of the floating platform.

[0020] The beneficial effects of this utility model are:

[0021] 1. The present invention proposes a berthing platform system for offshore construction vessels. The floating platform can generate swaying, heaving and rolling motions under the action of waves, while the steel platform remains stationary. The dynamic and static structures work together through flexible connection. The floating platform can adapt to the elevation changes of the floating platform caused by the rise and fall of tides.

[0022] 2. The present invention proposes a fully offshore construction vessel berthing platform system. The ladder can be matched and connected to the steel platform through pin shafts, which can adapt to the elevation changes of the pontoon and effectively connect the construction platform and the pontoon, and can meet the needs of personnel counting and material handling.

[0023] 3. The offshore construction vessel berthing platform system proposed in this utility model uses positioning piles to fix the pontoons. The overall floating platform system has excellent stability. With the rigid constraint of the pontoon platform limit groove, the impact force is reduced to within the range that the steel platform can withstand.

[0024] 4. The present invention proposes a berthing platform system for offshore construction vessels, in which the heave displacement of the pontoon platform is automatically adjusted by the inclination angle of the ladder to ensure that the contact surface between the ladder and the pontoon is always in contact, thus avoiding structural jamming.

[0025] 5. The present invention proposes a fully offshore construction vessel berthing platform system. The anti-collision tires absorb the kinetic energy of the ship impact through polyurethane foam filling and elastic deformation. Combined with the rigid constraint of the floating platform limit groove, the impact force is attenuated to the range that the steel platform can withstand. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a fully offshore construction vessel berthing platform system according to the present invention;

[0028] Figure 2 for Figure 1 Enlarged view of point A;

[0029] Figure 3 for Figure 1 Enlarged view of point B;

[0030] Figure 4 This is a schematic diagram of the ladder of a berthing platform system for an offshore construction vessel according to the present invention;

[0031] Figure 5 This is a top view of the pontoon of a fully offshore construction vessel berthing platform system according to the present invention.

[0032] In the diagram, 10 is a steel platform; 101 is a steel pipe pile; 102 is a distribution beam; 103 is a trestle bridge; 104 is an H-beam; 105 is a base plate; 106 is a guardrail; 107 is the first connecting plate; 20 is a floating platform; 201 is the floating body; 202 is a limiting groove; 30 is a ladder; 301 is the main beam; 302 is a step plate; 303 is the second connecting plate; 304 is a roller; 305 is a pin; 40 is a positioning pile; and 401 is a limiting rod. Detailed Implementation

[0033] The following is combined with Figure 1-5 This utility model will be described in detail.

[0034] A fully offshore construction vessel berthing platform system, such as Figure 1 As shown, the system includes a steel platform 10 fixed to the dock; a floating platform 20 spaced apart from the steel platform 10, the floating platform 20 being positioned on the water surface in the water area; a ladder 30 positioned between the floating platform 20 and the steel platform 10, one end of the ladder 30 being hinged to the steel platform 10, and the other end of the ladder 30 being rotatably connected to the top surface of the floating platform 20; and a plurality of positioning piles 40, the floating platform 20 being slidably attached to the positioning piles 40.

[0035] Steel platform 10 is rigidly connected to the wharf's concrete structure via pre-embedded bolts, ensuring its resistance to wind and waves. Floating platform 20 is positioned 10-15 meters apart from steel platform 10. Floating platform 20 is constructed from multiple welded hollow steel pontoons, and its buoyancy is calculated to meet the maximum ship load requirements. Ladder 30 employs a segmented truss structure; one end is connected to steel platform 10 via a hinge, while the other end has two sets of polyurethane rollers 304 installed at its bottom, allowing them to roll freely on the stainless steel pads on the top surface of floating platform 20, accommodating vertical displacement caused by tides. Figure 3 As shown, six positioning piles 40 are driven into the seabed in a rectangular array. The floating platform 20 slides along the positioning piles 40 through the limiting grooves 202 on the side to limit horizontal displacement. The top of the positioning piles 40 is provided with a limiting rod 401 to prevent the floating platform 20 from falling out.

[0036] The steel platform 10 is constructed by driving 0.8m diameter steel pipe piles 101 into the rock strata at 5m x 5m intervals. Distribution beams 102 are welded to the top of the piles, and precast concrete trestle bridge slabs 103 are laid on the beams, with 2cm expansion joints reserved between the slabs. The surfaces of the steel platform 10 and the floating platform 20 are treated with a three-layer anti-corrosion system consisting of arc-sprayed aluminum, epoxy sealing paint, and polyurethane topcoat. Key hinge points are equipped with grease fittings for periodic application of lithium-based grease.

[0037] This system can be expanded into a multi-berth structure by adding parallel steel platforms 10 and floating platforms 20, sharing a common positioning pile 40. During typhoon warnings, the latch 305 connection of the ladder 30 can be quickly disassembled, allowing the ladder 30 to be towed to a safe harbor. Solar panels and mooring winches can also be installed on the floating platform 20 to achieve self-powered operation and intelligent mooring. For extremely shallow water areas, the positioning pile 40 can be replaced with a gravity-type concrete foundation, and the bottom of the floating platform 20 is equipped with retractable outriggers for stable bottom mounting.

[0038] In this embodiment, as Figure 4As shown, the ladder 30 includes at least two parallel main beams 301, and a number of steps 302 are distributed between the two main beams 301. Handrails are provided on both sides of the steps 302.

[0039] In this embodiment, as Figure 1-2 As shown, the steel platform 10 includes a plurality of steel pipe piles 101 arranged in an array. A distribution beam 102 is provided on the top of each steel pipe pile 101, and a trestle bridge 103 is laid between adjacent steel pipe piles 101. The trestle bridge 103 is located on top of the distribution beam 102. Further, a plurality of H-beams 104 are arranged on the top of the trestle bridge 103, and a base plate 105 is arranged on top of each H-beam 104. A guardrail 106 is provided on the base plate 105.

[0040] In this embodiment, the floating platform 20 structure includes floating body 201 connected in sequence. Longitudinal ribs and transverse ribs are welded to the outer surfaces of several floating body 201s, forming a grid-like fixing frame. Further, corresponding limiting grooves 202 are provided at the ends of adjacent floating body 201s. The two limiting grooves 202 close to form a limiting opening, and the positioning pile 40 slides within the limiting opening. An arc-sprayed aluminum layer provides cathodic protection, an epoxy sealing paint fills the pores, and a polyurethane topcoat forms a dense barrier, reducing the corrosion rate in the marine atmosphere.

[0041] The floating platform 20 consists of three 9m×6m×2m floating unit units connected end-to-end. Each floating unit has a 12mm thick outer shell plate and internally features a grid-shaped stiffening rib with a rib spacing of 1.5m. The welds are double-sided bevel welds. Limiting grooves 202 are welded to the ends of adjacent floating units, with nylon sliding blocks 40 lining the grooves for positioning. The floating unit segments can be fabricated in sections and assembled and welded on-site according to the installed steel pipes. The butt welds meet Class I weld standards. Upper and lower floating limit and rolling devices are installed at the sliding grooves. The floating units are filled with foam material. Care must be taken to avoid ignition during welding. The outer surface of the floating units is coated for corrosion protection for at least two years.

[0042] In this embodiment, as Figure 3 As shown, the ladder 30 is provided with rollers 304 near the floating platform 20, and a pad is arranged on the top surface of the floating platform 20. The rollers 304 are rotatably connected to the pad.

[0043] In this embodiment, the steel platform 10 is provided with a first connecting plate 107, and the ladder 30 is provided with a second connecting plate 303 at the end away from the rollers 304. The first connecting plate 107 and the second connecting plate 303 are hinged by pins 305. The main beam 301 of the ladder 30 has a box-shaped cross section, the step plates 302 are perforated anti-slip aluminum plates, and the ladder 30 is 20m long, 1.55m wide, with handrails of 42mm diameter and a spacing of 1.1m. The rollers 304 assembly includes double-row bearings, and the pads are hot-sprayed with zinc. The steel platform 10 is welded with a first connecting plate 107 with pin holes at its edge. The first connecting plate 107 is a thick connecting lug plate, and the ladder 30 is provided with a corresponding second connecting plate 303 at its end, connected by pins made of high-strength steel rods with a diameter of 50mm.

[0044] In this embodiment, a plurality of positioning piles 40 are arranged in an array, and a limiting rod 401 is provided between two adjacent positioning piles 40. The horizontal height of the limiting rod 401 is less than the top surface height of the steel platform 10. The tidal section of the positioning piles 40 is covered with a protective sleeve, and the underwater part is anodized.

[0045] In this embodiment, anti-collision tires are arranged at intervals on the outer side of the floating platform 20. Used marine tires, filled with polyurethane foam, are suspended every 3 meters around the floating platform 20 and fixed to the side wall of the floating box using U-shaped clips. The H-beams 104 are welded to the bottom of the steel plate.

[0046] When the tide rises, the floating platform 20 rises along the positioning piles 40, pushing the ladder 30 to rotate around the hinge point. Rollers 304 roll backward on the pad, and the ladder 30's inclination angle changes from 30° to 15°, maintaining constant communication between the steel platform 10 and the floating platform 20. When the ship berths, the anti-collision tires absorb impact energy at the first layer. Under wave action, the heave displacement of the floating platform 20 is limited by the guide grooves of the positioning piles 40, while the rolling connection design of the ladder 30 allows for relative displacement. At low tide, the floating platform 20 slides down along the positioning piles 40 under its own weight, and the ladder 30 automatically resets. The entire system combines the rigid support of the steel platform 10 with the flexible floating of the floating platform 20, enabling all-weather operation.

[0047] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An offshore full off-shore construction vessel docking platform system, characterized in that, The utility model relates to a floating platform structure, including steel platform, fixed on the wharf; floating platform, which is arranged at intervals with the steel platform, and is arranged on the water surface in the water area; ladder, which is arranged between the floating platform and the steel platform, one end of the ladder is hinged with the steel platform, and the other end of the ladder is rollingly connected with the top surface of the floating platform; and a plurality of positioning piles, the floating platform is slidably connected on the positioning piles.

2. A system for mooring a full offshore construction vessel to a platform as claimed in claim 1, wherein, The steel platform includes a plurality of arrayed steel pipe piles, the top of the steel pipe pile is provided with a distribution beam, a trestle is arranged between adjacent steel pipe piles, and the top of the distribution beam is provided with the trestle.

3. A system according to claim 2, wherein, The top of the trestle is arranged with a plurality of H-shaped steels, the top of the H-shaped steel is arranged with a bottom plate, and the bottom plate is provided with a guardrail.

4. A system for docking an offshore full off-shore construction vessel according to claim 1, characterized in that, The floating platform structure includes a plurality of floating bodies connected in sequence, a plurality of longitudinal ribs and transverse ribs are welded on the outer surfaces of the floating bodies, and the longitudinal ribs and transverse ribs form a grid-shaped fixed frame.

5. A system according to claim 4, wherein, The ends of two adjacent floating bodies are provided with corresponding limiting grooves, the two limiting grooves are closed to form a limiting opening, and the positioning pile is slidably connected in the limiting opening.

6. An offshore full off-shore construction vessel docking platform system as claimed in claim 1, characterized in that, The ladder includes at least two parallel arranged main beams, a plurality of step plates are distributed between the two main beams, and handrails are arranged on the two sides of the step plates.

7. A system according to claim 6, wherein, The ladder is provided with a roller close to the floating platform, the top surface of the floating platform is arranged with a pad, and the roller is rollingly connected to the pad.

8. A system according to claim 7, wherein, The steel platform is provided with a first connecting plate, the end of the ladder away from the roller is provided with a second connecting plate, and the first connecting plate and the second connecting plate are hingedly connected through a bolt.

9. An offshore full off-shore construction vessel docking platform system as claimed in claim 1, characterized in that, A plurality of positioning piles are arrayed, a limiting rod is arranged between two adjacent positioning piles, and the limiting rod is lower than the top surface of the steel platform.

10. An offshore full off-shore construction vessel docking platform system as claimed in claim 1, characterized in that, The outer side of the floating platform is arranged with anti-collision tires at intervals.

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