A floating platform underwater cast-in-place pile drilling device and its construction method

Abstract

The present invention discloses the technical field of water conservancy construction, specifically a floating platform underwater cast-in-place pile drilling device and its construction method, which includes a floating box and a platform. Base columns are slidably installed at the four corners of the platform. The floating box is slidably arranged outside the base columns and is located below the platform. Climbing components are fixedly installed on both sides of the floating box. The climbing components are sleeved outside the base columns and are used to drive the floating box to rise or fall along the base columns. A bearing platform ring is fixedly connected to the top of the base columns. Connection components are installed at the four corners of the platform. The connection components are distributed outside the base columns and are used to selectively connect the bearing platform ring and the climbing components. In the present invention, the platform and the floating box are separately arranged, and both hoisting and transportation can be carried out separately, reducing the difficulty of hoisting and transportation. Moreover, multiple usage states are provided, so as to be applicable to various working conditions, more flexible and convenient, and have super adaptability in construction areas with complex river basins or in waters with changing depths from shallow to deep, thereby reducing the cost of platform construction.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic construction, and specifically relates to a floating platform underwater cast-in-place pile drilling device and a construction method thereof. Background Art

[0002] A floating pile driving platform is a device that can float on the water surface, mainly composed of a floating box providing buoyancy and a pile driving device at the top of the floating box, which can enable the pile driving device to construct on the water surface far from the land, facilitating drilling and driving piles in the water, and requires sufficient buoyancy and stability.

[0003] For underwater operations, due to different water conditions in the water area, different requirements are needed for the pile driving platforms; for example, the intertidal zone and shallow sea areas have characteristics such as fast water flow velocity, soft geology, large water level changes, and high requirements for the draft of ships, making pile foundation construction operations extremely difficult. Generally, fixed platforms are used for construction, but the structure of fixed drilling platforms is complex, and their construction is cumbersome and difficult; floating platforms are prone to stranding or unable to be grounded for use, making it difficult to carry out construction; the biggest impact on construction in deep water areas is the problem of wind and waves, and the existing floating platforms have weak resistance to wind and waves, endangering construction safety.

[0004] Most of the existing floating platforms are fixed, with limited adaptable working conditions, and the water area situations faced in specific construction are diverse, making it difficult to simultaneously adapt to the construction requirements of shallow water, intertidal zones, and deep water areas under multiple working conditions. This results in the need to select different platforms for construction according to specific situations during construction, which is relatively wasteful of manpower and material resources and has a relatively high cost.

[0005] Based on this, the present invention designs a floating platform underwater cast-in-place pile drilling device and a construction method thereof to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a floating platform underwater cast-in-place pile drilling device and a construction method thereof to solve the problems proposed in the above background art, that is, most of the floating platforms are fixed, with limited adaptable working conditions, it is difficult to simultaneously adapt to the construction requirements of shallow water, intertidal zones, and deep water areas under multiple working conditions, and the cost is relatively high.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: including a floating box and a platform, base columns are slidably installed at the four corners of the platform, the floating box is slidably arranged outside the base columns and is located below the platform, climbing components are fixedly installed on both sides of the floating box, and the climbing components are sleeved outside the base columns for driving the floating box to rise or fall along the base columns;

[0008] The top of the base column is fixedly connected with a bearing platform ring, connection components are installed at the four corners of the platform, and the connection components are distributed outside the base columns and are used for selectively connecting the bearing platform ring and the climbing components.

[0009] As a further solution of the present invention, the climbing assembly includes a lower clamping ring, an upper clamping ring and a guide sleeve. The guide sleeve is fixedly connected to the floating box. The lower clamping ring and the upper clamping ring are located on both sides of the guide sleeve and are both sleeved outside the base column. The lower clamping ring is movably connected to the floating box. A climbing hydraulic cylinder is fixedly installed between the guide sleeve and the upper clamping ring, and the top end of the climbing hydraulic cylinder is slidably matched with the upper clamping ring.

[0010] As a further solution of the present invention, both the upper clamping ring and the lower clamping ring include two semi-circular rings. The semi-circular rings are fixedly connected by a clamping cylinder. The lower clamping ring is fixedly connected by an adapting cylinder on the side of the floating box.

[0011] As a further solution of the present invention, mounting grooves are respectively formed in the middle of the semi-circular rings. A slow-down wheel is rotatably installed in the mounting groove, and the slow-down wheel contacts the base column.

[0012] As a further solution of the present invention, the connecting assembly includes a ferrule fixedly connected to the four corners of the platform. A plurality of double-headed clamping claws are rotatably connected outside the ferrule. A double-headed cylinder is fixedly installed on the outside of the ferrule. Clamping rings are fixedly installed at both ends of the double-headed cylinder. The clamping rings are sleeved on the two ends of the double-headed clamping claws up and down. The double-headed cylinder drives the clamping rings to move up and down so that the double-headed clamping claws rotate and are hung and clamped.

[0013] As a further solution of the present invention, an installation groove is formed at the top of the ferrule. The double-headed clamping claws located inside are installed in the installation groove. Inclined surfaces extending outwards are respectively arranged at both outer ends of the double-headed clamping claws. The inner ring of the clamping ring is an inclined surface ring matching the double-headed clamping claws.

[0014] As a further solution of the present invention, the diameter of the clamping ring is larger than the diameters of the upper clamping ring and the bearing platform ring. The double-headed clamping claws have clamping ends extending inwards. When the opening degree of the clamping ends of the double-headed clamping claws is the largest, it is larger than the diameters of the upper clamping ring and the bearing platform ring.

[0015] As a further solution of the present invention, an extension rod is slidably connected inside the base column. An extension motor is installed at the top end of the base column. The output end of the extension motor is fixedly connected to a screw rod. The screw rod passes through the extension rod and is in threaded cooperation with it. An auxiliary rod is fixedly connected between the two extension rods on the same side.

[0016] As a further solution of the present invention, there are two groups of floating boxes which are fixed symmetrically between two base columns on the same side. A plurality of cavities are arranged inside the floating boxes. Each cavity can be filled with water and drained separately. A plurality of contact nails are fixedly installed at the bottom of the floating boxes. A working window for drilling is arranged at the top of the platform.

[0017] A construction method for drilling underwater cast-in-place piles of a floating platform includes the construction methods for the following working conditions:

[0018] A: When constructing in shallow water areas:

[0019] Transport the platform and the pontoon to the place where the drilling is required, insert the base column of the platform into the connecting assembly of the platform and the climbing assembly of the pontoon, connect the connecting assembly and the climbing assembly to make the platform and the pontoon fixedly connected, install the pontoon on the bottom, selectively insert the base column into the ground according to the ground conditions, and then install the equipment and tools required for drilling piles on the top of the platform, and then start the drilling construction;

[0020] B: Construction in intertidal zone:

[0021] The platform and the pontoon are transported to the place where the drilling is required, and the base column of the platform is inserted into the connecting assembly of the platform and the climbing assembly of the pontoon. The platform and the pontoon are fixedly connected through the connecting assembly and the climbing assembly. At the same time, the climbing assembly slides on the base column, and the extension rod is selectively extended and fixed to the ground according to the water depth. Then, the equipment and tools required for drilling piles are installed on the top of the platform, and the drilling construction can be started. During the rising and falling tides, the pontoon and the platform slide up and down along the base column together, so that the platform is always kept above the water surface;

[0022] C: Construction in deep water areas:

[0023] Transport the platform and pontoon to the location where drilling is required, insert the platform's base column into the platform's connecting assembly and the pontoon's climbing assembly, fix the platform to the top of the base column through the connecting assembly, fix the pontoon under the base column through the climbing assembly, inject water into the pontoon to sink it below the water surface, and then install the equipment and tools required for drilling piles on the top of the platform, and then you can start drilling construction.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The platform and pontoon are separated, and hoisting and transportation can be carried out separately, which reduces the difficulty of hoisting and transportation, and provides a variety of usage states, so it is suitable for a variety of working conditions, more flexible and convenient, and has strong adaptability in construction areas with complex basins or construction in waters that change from shallow to deep, thereby reducing the cost of platform construction.

[0026] The platform and the pontoon are separately arranged, and the pontoon unit can be smaller, thereby reducing the difficulty of hoisting the pontoon, and multiple pontoons can also provide greater buoyancy than pontoons of the same size as the platform, thereby enhancing the load-bearing capacity of the platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention from a side-view perspective;

[0028] Figure 2 This is a schematic diagram of the overall structure of the present invention from a front-down perspective;

[0029] Figure 3 For the present invention Figure 2Schematic diagram of the enlarged structure of part A;

[0030] Figure 4 This is the overall structural schematic diagram of the invention from the upward viewing angle;

[0031] Figure 5 This is the semi-sectional structural schematic diagram of the base column of the invention from the side and downward viewing angles;

[0032] Figure 6 This is the overall semi-sectional structural schematic diagram of the base column of the invention from the oblique viewing angle;

[0033] Figure 7 This is the connection schematic diagram of the connecting component, the bearing platform ring and the climbing component of the invention;

[0034] Figure 8 This is the schematic diagram during the climbing process of the climbing component of the invention;

[0035] Figure 9 This is the schematic diagram of the climbing component of the invention about to climb upward;

[0036] Figure 10 This is the schematic diagram of the invention in the sitting-on-bottom state (the horizontal solid line indicates the ground);

[0037] Figure 11 This is the schematic diagram of the invention used in the intertidal zone (the horizontal solid line indicates the ground, and the horizontal dotted line indicates the water surface);

[0038] Figure 12 This is the schematic diagram of the invention used in the deep water area (the horizontal dotted line indicates the water surface).

[0039] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0040] 1. Floating box; 2. Platform; 3. Base column; 4. Climbing component; 5. Bearing platform ring; 6. Connecting component; 401. Upper clamping ring; 402. Lower clamping ring; 403. Guide sleeve; 404. Climbing hydraulic cylinder; 405. Clamping cylinder; 406. Adaptation cylinder; 407. Descent retarder; 601. Ring; 602. Double-headed gripper; 603. Double-headed cylinder; 604. Clamping ring; 605. Installation groove; 19. Extension rod; 20. Extension motor; 21. Screw; 22. Auxiliary rod; 23. Cavity; 24. Contact nail; 25. Working window. Detailed implementation manners

[0041] Please refer to Figures 1-12 , the working principle of the technical solution provided by the present invention is as follows:

[0042] During construction in the shallow water area

[0043] When constructing in shallow water areas or shoals, it is more secure to use a jack-up platform. Transport the platform 2 and the pontoon 1 to the location where drilling is required. Insert the base columns 3 of the platform 2 into the connection components 6 of the platform 2 and the climbing components 4 of the pontoon 1. At this time, the platform 2 is located on top of the pontoon 1 and the pontoon 1 is sitting on the ground. Due to gravity, the platform 2 and the pontoon 1 will be in close contact and will not separate from each other during use. However, connecting the platform 2 and the pontoon 1 through the connection components 6 and the climbing components makes their fixed connection more secure. At this time, the bottom installation of the pontoon 1 and the platform 2 is completed. Then, the base columns 3 can be selectively inserted into the ground according to the ground conditions. If the base columns 3 are driven into the ground, the platform 2 will be more stable during use. Finally, install the instruments and tools required for drilling and pile formation on top of the platform 2, and then drilling construction can begin.

[0044] Specifically, the original state of the connection component 6 is that the bottom of the double-headed claw 602 is in an open state. Therefore, when the platform 2 is hoisted above the pontoon 1 and installed, the bottom end of the double-headed claw 602 automatically crosses over the upper holding ring 401 and the inwardly extending bottom hook of the double-headed claw 602 is located below the outside of the upper holding ring 401. At this time, by turning on the double-headed cylinder 603, the upper and lower clamping rings 604 are driven to move downward together. Then, during the downward movement, the restraint on the upper end of the double-headed claw 602 is released and the lower end of the double-headed claw 602 is tightened, so that the inwardly extending bottom hook of the double-headed claw 602 rotates inward to hook under the upper holding ring 401 and squeezes upward and tightens, thus tightly connecting the upper holding ring 401 and the double-headed claw 602, so that the pontoon 1 and the platform 2 are tightly fixed together. At this time, the bottom of the platform 2 is in contact with the bottom of the pontoon 1, and thus the platform 2 is very stable during use.

[0045] During construction in the intertidal zone

[0046] The installation and connection state is the same as that during construction in shallow water areas or shoals. The pontoon 1 and the platform 2 are fixedly connected as a whole. The difference is that the pontoon 1 and the platform 2 are sliding relative to the base columns 3. At this time, the upper holding ring 401 and the lower holding ring 402 are in a loosened state. At this time, the pontoon 1 and the platform 2 can move up and down along the base columns 3, so that they can follow the ebb and flow of the tide in time during construction in the intertidal zone. The pontoon 1 can drive the platform 2 to move with the change of the water surface, so that the platform 2 is always above the water surface, thus ensuring the normal progress of construction;

[0047] According to the depth of the water level, it can be selectively turned on the extension motor 20 to drive the screw 21 to rotate, and then drive the internal extension rod 19 to extend out of the base column 3, so that a part of the extension rod 19 can be inserted into the ground, thus stabilizing the foundation of the platform 2. If there are anchor fittings, it will be more stable; when the water level of most construction is relatively deep, the pontoon 1 can also be released to move downward along the base column 3, and at the same time, fill it with water inward, so as to increase the weight and lower the center of gravity, and improve the stability of the platform 2.

[0048] During construction in deep water areas

[0049] After transporting the floating box 1, the platform 2 and the base column 3 to the construction site and installing them, due to the action of buoyancy and gravity, the platform 2 and the floating box 1 are closely attached. At this time, the upper end of the double-headed jaw 602 is in an open state. At the same time, the bearing platform ring 5 at the top of the base column 3 contacts the ferrule 601. At this time, the double-headed cylinder 603 is connected to drive the clamping rings 604 up and down at the same time to move upward, thereby tightening the upper end of the double-headed jaw 602, so that the hook extending inward of the double-headed jaw 602 hooks the bearing platform ring 5. Moving the clamping ring 604 upward further tightens the double-headed jaw 602, so that the connection between the double-headed jaw 602 and the bearing platform ring 5 is more tightly and firmly fixed. At the same time, the platform 2 is also stably fixed at the top of the base column 3. At this time, an appropriate amount of water is filled into the floating box 1 so that after the floating box 1 sinks to a suitable position below the water surface, the clamping cylinder 405 that tightens the upper clamping ring 401 and the lower clamping ring 402 is used to make the upper clamping ring 401 and the lower clamping ring 402 clamp the base column 3 and fix it in the adjusted position, so that the floating box 1 sinks to the bottom for use while the platform 2 is in a state above the water surface, so as to better resist wind and waves and make the platform 2 have better stability.

[0050] The floating box 1 is provided with a plurality of cavities 23. According to the weight distribution on the platform 2, water can be filled in the front end or the rear end of the floating box 1. If the weight distribution of the platform 2 is forward, water can be filled in the cavity at the rear end of the floating box 1, so as to achieve the effect of balancing the center of gravity, making the stability of the platform 2 better and also facilitating the construction of pile driving.

[0051] After the pile driving construction is completed at one position, the floating box 1 can be drained of water, and at the same time, the upper clamping ring 401 and the lower clamping ring 402 are loosened. As the floating box 1 is drained of water, the floating box 1 gradually floats upward and approaches the platform 2 along the base column 3 until the floating box 1 is close to or in contact with the platform 2. When the floating box 1 floats to the water surface, the construction position of the platform 2 can be changed by towing the floating box 1, and thus it can be flexibly moved to meet the construction requirements of multiple pile positions.

[0052] When the clamping cylinder 405 extends to make the two semi-circular rings of the upper clamping ring 401 and the lower clamping ring 402 move away from the base column 3, when the two semi-circular rings of the upper clamping ring 401 and the lower clamping ring 402 move to the farthest distance, the rotation path of the inner slow-down wheel 407 is in contact with the side surface of the base column 3, rather than being completely loosened. At this time, whether the floating box 1 rises or falls along the base column 3, the slow-down wheel 407 will rotate. Through the rotation resistance of the slow-down wheel 407, the slow rise or slow fall effect of the floating box 1 can be achieved, avoiding the collision between the floating box 1 and the platform 2. The slow-down wheel 407 can adopt a resistance wheel or the top of the wheel teeth uses rubber materials, and resistance will be generated when the tooth ends are pressed during rotation, or it can be other means that can make the slow-down wheel 407 rotate slowly.

[0053] Taking the descent of the floating box 1 as an example, when the floating box 1 is filled with water and lowered as much as possible, the lower clamping ring 402 can be released. At this time, the climbing hydraulic cylinder 404 is turned on to extend its output end, thereby increasing the distance between the upper clamping ring 401 and the lower clamping ring 402. Since the upper clamping ring 401 is in a clamped and fixed state at this time, the guide sleeve 403 together with the lower clamping ring 402 will move downward, thereby driving the floating box 1 to move downward, so as to actively and forcibly make the floating box 1 sink, and thus the position of the floating box 1 can be adjusted to select the center of gravity positions of the floating box 1 and the platform 2. If the floating box 1 needs to rise actively, the process is opposite to the above. First, loosen the upper clamping ring 401, then turn on the climbing hydraulic cylinder 404 to make it extend, jack up the upper clamping ring 401 based on the lower clamping ring 402, and then tighten the upper clamping ring 401, loosen the lower clamping ring 402, and contract the climbing hydraulic cylinder 404 to pull up the lower clamping ring 402 and the guide sleeve 403, realizing the rise of the floating box 1.

[0054] When the lower clamping ring 402 is loosened to both sides under the extension of the clamping cylinder 405, the adaptation cylinder 406 also shortens adaptively, so that the two half-rings of the lower clamping ring 402 can be symmetrically loosened to both sides at the same time, facilitating subsequent simultaneous tightening, reducing friction at the same time, and avoiding scratching the base column 3; when the upper clamping ring 401 moves and loosens to both sides, the two half-rings of the upper clamping ring 401 slide outwards at the top of the climbing hydraulic cylinder 404, so that the upper clamping ring 401 can move and loosen the base column 3 to both sides.

[0055] When the clamping cylinder 405 tightens, it also presses the slow descent wheel 407 to move inwards and tighten at the same time, so that the tooth end is clamped in the state of multiple tooth surfaces based on the base column 3. Thus, under the clamping and fixing of the half-rings, the slow descent wheel 407 also provides multiple clamping points, thereby enhancing the stability and firmness of the clamping.

[0056] Under the above working conditions, since the platform 2 and the floating box 1 are separately arranged, hoisting and transportation can be carried out separately, reducing the difficulty of hoisting and transportation, and providing multiple use states, so as to be applicable to a variety of working conditions, which is more flexible and convenient; it has super adaptability in complex construction areas of river basins or in waters with variable depths from shallow to deep, thereby reducing the platform construction cost; also because the platform 2 and the floating box 1 are separately arranged, the single floating box 1 can be designed to be smaller. On the premise of providing the same buoyancy, the more the floating boxes 1 are, the smaller the single floating box 1 is, thus reducing the hoisting difficulty of the floating box 1, and multiple floating boxes 1 can also provide a larger buoyancy relative to the floating box of the same size as the platform 2, thereby enhancing the load-bearing capacity of the platform 2.

[0057] The setting of the floating boxes 1 on both sides makes the space in the middle under the platform 2 relatively large, so that it is easier to carry out unobstructed pile driving construction through the working window 25. Among them, the climbing component can also be a rack and pinion structure, that is, an embedded rack is provided on the surface of the base column 3. By meshing the slow-down wheel 407 with the rack and installing a power source on the slow-down wheel 407, the lifting of the rack and pinion can be achieved. Or by installing a driving gear on the guide sleeve 403 and a power source for rotating the driving gear, the upper clamping ring 401 and the lower clamping ring 402 can be omitted, and the lifting of the floating box can also be achieved through the rack and pinion structure. All cylinders mentioned in this article are hydraulic cylinders, and the full set of hydraulic transmission is more stable, reliable and has a higher load-bearing limit.

Claims

1. A drilling device for underwater cast-in-place piles of a floating platform, comprising a floating box (1) and a platform (2), characterized in that: Four corner parts of the platform (2) are slidably installed with base columns (3), the floating box (1) is slidably arranged outside the base columns (3) and below the platform (2), both sides of the floating box (1) are fixedly installed with climbing components (4), and the climbing components (4) are sleeved outside the base columns (3) for driving the floating box (1) to rise or fall along the base columns (3); The top of the base column (3) is fixedly connected with a bearing platform ring (5), connection components (6) are installed at four corner parts of the platform (2), and the connection components (6) are distributed on the outer sides of the base columns (3) and are used for selectively connecting the bearing platform ring (5) and the climbing components (4); The connection component (6) includes a collar (601) fixedly connected to four corner parts of the platform (2), a plurality of double-headed clamping claws (602) are rotatably connected to the outside of the collar (601), a double-headed cylinder (603) is fixedly installed on the outer side of the collar (601), clamping rings (604) are fixedly installed at both ends of the double-headed cylinder (603), the clamping rings (604) are sleeved on both ends of the double-headed clamping claws (602) up and down, and the double-headed cylinder (603) drives the clamping rings (604) to move up and down so that the double-headed clamping claws (602) rotate and are hooked and clamped.

2. The drilling device for underwater cast-in-place piles of a floating platform according to claim 1, wherein: The climbing component (4) includes a lower holding ring (402), an upper holding ring (401) and a guide sleeve (403), the guide sleeve (403) is fixedly connected with the floating box (1), the lower holding ring (402) and the upper holding ring (401) are located on both sides of the guide sleeve (403) and are both sleeved outside the base column (3), the lower holding ring (402) is movably connected with the floating box (1), a climbing hydraulic cylinder (404) is fixedly installed between the guide sleeve (403) and the upper holding ring (401), and the top end of the climbing hydraulic cylinder (404) is in sliding fit with the upper holding ring (401).

3. The drilling device for underwater cast-in-place piles of a floating platform according to claim 2, characterized in that: Both the upper holding ring (401) and the lower holding ring (402) include two semi-circular rings, the semi-circular rings are fixedly connected through a clamping cylinder (405), and the lower holding ring (402) is fixedly connected through an adaptation cylinder (406) on the side surface of the floating box (1).

4. A floating platform underwater cast-in-place pile drilling device according to claim 3, characterized in that: Installation grooves (605) are formed in the middle of the semi-circular rings, slow-down wheels (407) are rotatably installed in the installation grooves (605), and the slow-down wheels (407) are in contact with the base column (3).

5. A floating platform underwater cast-in-place pile drilling device according to claim 1, characterized in that: Installation grooves (605) are formed at the top of the collar (601), the inner double-headed clamping claws (602) are installed in the installation grooves (605), inclined surfaces extending outwards are arranged at both outer ends of the double-headed clamping claws (602), and the inner ring of the clamping ring (604) is an inclined surface ring matching the double-headed clamping claws (602).

6. The drilling device for underwater cast-in-place piles of a floating platform according to claim 1, characterized in that: The diameter of the clamping ring (604) is larger than the diameters of the upper holding ring (401) and the bearing platform ring (5), the double-headed clamping claws (602) have clamping ends extending inwards, and when the opening degree of the clamping ends of the double-headed clamping claws (602) is the largest, it is larger than the diameters of the upper holding ring (401) and the bearing platform ring (5).

7. A floating platform underwater cast-in-place pile drilling device according to claim 1, characterized in that: A telescopic rod (19) is slidably connected inside the base column (3). An extension motor (20) is installed at the top of the base column (3). The output end of the extension motor (20) is fixedly connected to a screw rod (21). The screw rod (21) passes through the telescopic rod (19) and is in threaded cooperation with it. An auxiliary rod (22) is fixedly connected between two telescopic rods (19) on the same side.

8. A floating platform underwater cast-in-place pile drilling device according to claim 1, characterized in that: Two floating boxes (1) are provided and fixed symmetrically between two base columns (3) on the same side. A plurality of cavities (23) are provided inside the floating box (1). Each cavity (23) can be filled with water and drained separately. A plurality of contact studs (24) are fixedly installed at the bottom of the floating box (1). A working window (25) for drilling is provided at the top of the platform (2).

9. A construction method for drilling underwater cast-in-place piles of a floating platform, including the underwater cast-in-place pile drilling device of the floating platform according to any one of claims 1-8, characterized in that: The construction method includes the following working conditions: A: During construction in shallow water areas: Transport the platform (2) and the floating box (1) to the location where drilling is required. Insert the base column (3) of the platform (2) into the connection assembly (6) of the platform (2) and the climbing assembly (4) of the floating box (1). Connect the platform (2) and the floating box (1) through the connection assembly (6) and the climbing assembly, and the floating box (1) is installed on the bottom. Selectively insert the base column (3) into the ground according to the ground conditions. Then install the instruments and tools required for drilling and pile forming on the top of the platform (2), and drilling construction can start. B: During construction in the intertidal zone: Transport the platform (2) and the floating box (1) to the location where drilling is required. Insert the base column (3) of the platform (2) into the connection assembly (6) of the platform (2) and the climbing assembly (4) of the floating box (1). Connect the platform (2) and the floating box (1) through the connection assembly (6) and the climbing assembly. At the same time, the climbing assembly (4) slides on the base column (3). Then install the instruments and tools required for drilling and pile forming on the top of the platform (2), and drilling construction can start. During ebb and flow tides, the floating box (1) and the platform (2) slide up and down along the base column (3) together, so that the platform (2) always remains above the water surface. C: During construction in deep water areas: Transport the platform (2) and the floating box (1) to the location where drilling is required. Insert the base column (3) of the platform (2) into the connection assembly (6) of the platform (2) and the climbing assembly (4) of the floating box (1). Fix the platform (2) to the top of the base column (3) through the connection assembly (6), and fix the floating box (1) below the base column (3) through the climbing assembly (4). Fill the floating box (1) with water to sink the floating box (1) below the water surface. Then install the instruments and tools required for drilling and pile forming on the top of the platform (2), and drilling construction can start.

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