A quick installation type caisson structure for marine geotechnical engineering

Abstract

The application relates to the technical field of caisson structures, in particular to a quick installation type caisson structure for marine geotechnical engineering, which comprises a caisson main body, a top plate arranged on the top of the caisson main body and a plurality of pile columns fixed between the caisson main body and the top plate, the caisson main body is externally provided with an ecological plate assembly and a shell, a cavity is arranged in the shell, and the ecological plate assembly extends into the cavity. The quick installation type caisson structure for marine geotechnical engineering can be flexibly switched between a rigid fixing mode and an elastic floating mode. In a severe sea state, the structure is switched to the rigid fixing mode, the ecological plate assembly is rigidly connected with the shell and the caisson main body and cannot be moved, so that the structure can effectively resist strong external force impact and guarantee the overall stability of the structure; when ecological cleaning is needed, the structure is switched to the elastic floating mode, the ecological plate assembly can reciprocatingly vibrate to automatically clean excessive biological adhesion and garbage, the long-term ecological function of the structure is maintained, and the structure is suitable for different marine environments and work requirements.

Description

Technical Field

[0001] This application relates to the field of caisson structure technology, and in particular to a rapid-installation caisson structure for marine geotechnical engineering. Background Technology

[0002] Caisson foundations in marine geotechnical engineering serve as crucial load-bearing and protective structures for major projects such as cross-sea bridges, offshore wind power, and offshore platforms, and their design and construction technologies are becoming increasingly mature. Traditional caisson structures primarily focus on engineering mechanical performance and ease of construction, generally employing on-site casting or the hoisting of large prefabricated components. While meeting basic functional requirements, a more prominent contradiction lies in the fact that the rigid, smooth outer walls of traditional caissons encroach upon the original habitats of marine life. Large-scale construction often leads to the homogenization and fragmentation of local marine habitats, causing a sustained negative impact on marine biodiversity. This contradicts the current global advocacy for marine ecological protection and sustainable development.

[0003] To mitigate the ecological impact of engineering structures, existing technologies have explored adding static ecological restoration components such as artificial reefs and ecological concrete blocks to the outer wall of the caisson.

[0004] For example, patent document CN215483052U discloses a wave-resistant frame-type ecological caisson structure. However, this design, along with existing ecological panel components, has inherent drawbacks: firstly, they are permanently fixed to the main structure and cannot be detached from the main structure under extreme sea conditions such as typhoons and giant waves. This may increase the risk of additional loads on the main structure due to inconsistent dynamic responses, or even cause damage to the components themselves. Secondly, over time, the surfaces of these structures are easily clogged by excessive attachment of shellfish and algae, causing their ecological pores and surfaces to gradually lose their habitat function. Furthermore, manual cleaning and maintenance are costly and risky, leading to a rapid decline in their ecological benefits over time. In addition, existing designs are mostly single-function and lack the ability to proactively improve the surrounding aquatic environment. Therefore, a rapid-installation caisson structure for marine geotechnical engineering is proposed to address the aforementioned problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies and improve the working environment and performance of ecological panel components, this application provides a rapid-installation caisson structure for marine geotechnical engineering, which has advantages such as adaptability to different marine environments and working requirements, and solves the problems mentioned above.

[0006] This application provides a rapid-installation caisson structure for marine geotechnical engineering, employing the following technical solution:

[0007] A rapid-installation caisson structure for marine geotechnical engineering includes a caisson body, a top plate disposed on the top of the caisson body, and a number of piles fixed between the caisson body and the top plate. The caisson body is provided with an ecological board assembly and a shell. The shell has a cavity, and the ecological board assembly extends into the cavity. The cavity is provided with an abutment mechanism and a clamping structure for adjusting the ecological board assembly.

[0008] The ecological board assembly includes a board body, a guide rod fixed to one side of the board body and extending into the cavity, and a buffer spring fixed between the ecological board assembly and the shell.

[0009] The abutting mechanism (6) includes a telescopic electric cylinder (61) fixed on the inner wall of the chamber (51), a mounting plate (62) fixed on the output end of the telescopic electric cylinder (61), and a limiting rod (63) fixed on one side of the mounting plate (62) and extending to the outside of the housing (5). The distance between the limiting rod (63) and the plate (41) is controlled by the telescopic electric cylinder (61) to control the reciprocating floating of the plate (41). The clamping structure (7) clamps and fixes the guide rod (43) through the output of the telescopic electric cylinder (61).

[0010] The clamping structure includes a clamping block that abuts against the clamping block, a compression sleeve, and a guide sleeve for guiding the compression sleeve, wherein a guide rod is provided inside the guide sleeve.

[0011] Optionally, the plate has several equally spaced honeycomb cells on the side away from the shell, and the top side of the plate has a wave-facing arc surface.

[0012] Optionally, a corrugated telescopic sleeve fitted over the buffer spring is fixed between the plate and the housing, and a pressurizing component for use with the ecological board assembly is also provided inside the chamber.

[0013] Optionally, the clamping structure further includes a cylindrical seat fixed to the inner wall of the cavity, wherein the interior of the cylindrical seat is hollow, and the guide rod passes through the interior of the cylindrical seat and the mounting plate and is linked with the pressurization component.

[0014] Optionally: The clamping block includes an elastic sheet welded to the end of the cylinder base, and an anti-slip block is detachably installed on the inner side of the elastic sheet, and a plurality of anti-slip protrusions are fixed on the inner side of the anti-slip block.

[0015] Optionally: the outer surface of the elastic sheet is provided with an abutting inclined surface for use with the extrusion sleeve, the extrusion sleeve is sleeved on the outer surface of the elastic sheet, and the inner side of the extrusion sleeve is provided with a guide surface for use with the abutting inclined surface.

[0016] Optionally: the guide surface is cone-shaped, one end of the extrusion sleeve is rotatably connected to the outer surface of the mounting plate, one end of the guide sleeve is sleeved on the outer surface of the extrusion sleeve, the other end of the guide sleeve is fixed to the inner wall of the cavity, and the outer surface of the extrusion sleeve is provided with a guide groove for use with the guide rod.

[0017] Optionally: the guide sleeve is hollow inside, the guide groove is spirally arranged around the outer surface of the extrusion sleeve, and the guide rod includes a rod body fixed inside the guide sleeve, with a ball bearing rotatably mounted at the end of the rod body that rolls with the guide groove.

[0018] Optionally: The pressurization assembly consists of a pressurization component and a nozzle, and a connecting pipe is installed between the pressurization component and the nozzle. The nozzle is fixed to the outside of the housing, and a top rod for cleaning the nozzle is fixed on the outer wall of the plate.

[0019] Optionally: The pressurizing component includes a pressurizing cylinder fixed to the inner wall of the chamber, a pressurizing piston slidably disposed inside the pressurizing cylinder, a linkage rod fixed to the end of the guide rod fixed on the outer wall of the pressurizing piston, and a return spring fixed to the outer wall of the linkage rod fixed on the inner side of the pressurizing cylinder.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This invention can flexibly switch between a rigid fixed mode and an elastic floating mode. In harsh sea conditions, it switches to the rigid fixed mode, where the ecological panel components are rigidly connected to the shell and caisson body, making them immovable and effectively resisting strong external impacts, thus ensuring the overall stability of the structure. When ecological cleaning is required, it switches to the elastic floating mode, where the ecological panel components can reciprocate and vibrate to automatically clean up excessively attached organisms and debris, maintaining its long-term ecological function. This invention adapts to different marine environments and operational needs, improving the applicability and flexibility of the structure.

[0022] 2. In this invention, the honeycomb structure on the ecological board component provides a habitat for marine life, the wave-facing arc surface reduces the impact on marine life, and the buffer spring and corrugated expansion sleeve buffer the impact of waves on the ecological board component, protecting the structure of the ecological board component, thus realizing the organic combination of marine geotechnical engineering and ecological protection.

[0023] 3. This invention controls the distance between the limiting rod and the board body by using a telescopic electric cylinder, which can flexibly control the reciprocating floating of the ecological board assembly. The position of the ecological board assembly can be adjusted according to different marine environments and working requirements, thereby improving the adaptability and stability of the structure.

[0024] 4. In this invention, the ecological board component reciprocates under the impact of waves and water flow, which can automatically clean up excessively attached organisms and garbage, preventing the ecological board component from failing due to excessive biological attachment. This simulates the interference of natural reefs, eliminating the need for human intervention, reducing maintenance costs, and ensuring that the ecological board component can perform its ecological functions for a long time.

[0025] 5. In the elastic floating mode of the ecological board component, the present invention can convert the vibration kinetic energy of the ecological board component into high-pressure water jets that are ejected from the nozzle, and use wave undulations to draw in air and press it into the water for release, thereby increasing local dissolved oxygen, which helps to improve the marine ecological environment, promote the survival and reproduction of marine organisms, and further demonstrates the positive role of this structure in marine ecological protection.

[0026] 6. In this invention, during the reciprocating floating process of the ecological board assembly, the push rod will move relative to the nozzle as the board moves. When the push rod contacts the nozzle outlet, it will push out the blockage or attachment, ensuring the nozzle is unobstructed and ensuring that the pressurization assembly can work normally. Attached Figure Description

[0027] Figure 1 This is a three-dimensional view of the entire application;

[0028] Figure 2 This is an overall cross-sectional view of this application;

[0029] Figure 3 This is a schematic diagram of the ecological board components in this application;

[0030] Figure 4 This is a quarter-section view of the shell of this application;

[0031] Figure 5 This application Figure 2 A magnified structural diagram of structure A is shown below;

[0032] Figure 6 This is a cross-sectional view of the booster component in this application;

[0033] Figure 7 This is a cross-sectional view of the clamping structure portion of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Caisson body; 2. Top plate; 3. Piles; 4. Ecological board assembly; 41. Board body; 42. Honeycomb; 43. Guide rod; 44. Buffer spring; 45. Corrugated telescopic sleeve; 46. Wave-facing arc surface; 47. Top rod; 5. Shell; 51. Chamber; 6. Abutment mechanism; 61. Telescopic electric cylinder; 62. Mounting plate; 63. Limiting rod; 7. Clamping structure; 71. Cylinder base; 72. Clamping block; 721. Spring 722. Anti-slip block; 723. Abutting slope; 73. Anti-slip protrusion; 74. Extrusion sleeve; 741. Guide surface; 742. Guide groove; 75. Guide sleeve; 76. Guide rod; 761. Rod body; 762. Ball bearing; 8. Pressurization assembly; 81. Pressurization component; 811. Pressurization cylinder; 812. Pressurization piston; 813. Linkage rod; 814. Return spring; 82. Nozzle; 83. Connecting pipe. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0037] like Figures 1 to 7 As shown in the illustration, this application discloses a rapid-installation caisson structure for marine geotechnical engineering. It includes a caisson body 1, a top plate 2 disposed on top of the caisson body 1, and a plurality of piles 3 fixed between the caisson body 1 and the top plate 2. It should be noted that the piles 3 can be prefabricated in a factory using standardized molds and processes to ensure dimensional accuracy, quality stability, and production efficiency. The prefabricated piles 3 can be mass-produced according to design requirements, allowing for a certain number of piles 3 to be stockpiled in advance to meet the needs of rapid installation.

[0038] In this embodiment, the outer surface of the caisson body 1 is provided with an ecological board assembly 4 and a shell 5. The shell 5 has an internal cavity 51, and the ecological board assembly 4 extends into the cavity 51. The ecological board assembly 4 in this embodiment includes a board body 41, a guide rod 43 fixed to one side of the board body 41 and extending into the cavity 51, and a buffer spring 44 fixed between the ecological board assembly 4 and the shell 5. The ecological board assembly 4 extends into the cavity 51 of the shell 5 via the guide rod 43, and a buffer spring 44 is fixed between it and the shell 5, forming a multi-layered constraint mechanism. The guide rod 43 can limit excessive horizontal movement of the ecological board assembly 4, while the buffer spring 44 can absorb and disperse dynamic loads generated by waves and water flow to a certain extent, reducing vibration and impact on the structure and enhancing the overall structural stability. Specifically, the side of the board body 41 away from the shell 5 has several equidistantly distributed honeycomb-like structures 42, and the top side of the board body 41 has a wave-facing arc surface 46, which can reduce the impact on marine life.

[0039] In this embodiment, to protect the buffer spring 44, a corrugated telescopic sleeve 45 is fixed between the plate 41 and the shell 5, sleeved on the outside of the buffer spring 44. Due to the severe salt spray and humidity in the marine environment, the buffer spring 44 is easily corroded and fails if directly exposed. The corrugated telescopic sleeve 45 acts as a physical barrier, isolating corrosive media such as seawater and biological deposits, extending the service life of the spring. Wave impact may cause the spring to collide with surrounding structures; the flexible structure of the corrugated telescopic sleeve 45 can absorb some of the impact force, preventing the spring from deforming or breaking. It should be noted that the corrugated telescopic sleeve 45 is made of stainless steel or high-performance composite materials such as glass fiber reinforced polyethylene. The surface of the material should be smooth or have an anti-fouling coating to reduce the attachment of organisms such as barnacles and algae, and avoid increasing the structural burden due to biological growth. At the same time, the corrugated structure must deform synchronously when the spring is compressed / stretched, and the material must have a high elastic modulus such as silicone rubber or excellent metal fatigue properties such as titanium alloy to ensure that it does not crack during long-term use.

[0040] To improve the working condition of the ecological board assembly 4, in this embodiment, the chamber 51 is equipped with an adjusting abutment mechanism 6 and a clamping structure 7 for adjusting the ecological board assembly 4. The abutment mechanism 6 includes a telescopic electric cylinder 61 fixed to the inner wall of the chamber 51, a mounting plate 62 fixed to the output end of the telescopic electric cylinder 61, and a limiting rod 63 fixed to one side of the mounting plate 62 and extending to the outside of the shell 5. The telescopic electric cylinder 61 controls the distance between the limiting rod 63 and the board 41, thereby controlling the reciprocating floating of the board 41 and adjusting the movement state of the ecological board assembly 4 in real time to keep it in the optimal working position. This effectively buffers wave impact and avoids structural damage or functional failure caused by excessive or insufficient floating. The clamping structure 7 clamps and fixes the guide rod 43 through the output of the telescopic electric cylinder 61, preventing unnecessary movement of the ecological board assembly 4 due to external forces such as waves and water flow, ensuring the connection stability between the ecological board assembly 4 and the shell 5, and ensuring the normal operation of the entire caisson structure.

[0041] The clamping structure 7 in this embodiment includes a clamping block 72 that abuts against each other, a compression sleeve 74, and a guide sleeve 75 for guiding the compression sleeve 74. A guide rod 76 is provided inside the guide sleeve 75. Specifically, the clamping structure 7 also includes a cylinder seat 71 fixed to the inner wall of the chamber 51. The cylinder seat 71 is hollow inside, and the guide rod 43 passes through the cylinder seat 71 and the interior of the mounting plate 62 and is linked with the pressurizing component 8.

[0042] In this embodiment, the clamping block 72 includes an elastic sheet 721 welded to the end of the cylinder base 71. An anti-slip block 722 is detachably installed on the inner side of the elastic sheet 721. Several anti-slip protrusions 73 are fixed on the inner side of the anti-slip block 722. To drive the elastic sheet 721, an abutting inclined surface 723 is provided on the outer surface of the elastic sheet 721 to cooperate with the compression sleeve 74. The compression sleeve 74 is sleeved on the outer surface of the elastic sheet 721, and a guide surface 741 is provided on the inner side of the compression sleeve 74 to cooperate with the abutting inclined surface 723. Specifically, the guide surface 741 is cone-shaped, which makes it convenient and quick to operate when the anti-slip block 722 is worn or when it is necessary to replace the anti-slip block 722 of different specifications to adapt to different working conditions, thereby improving the maintainability and versatility of the structure. Meanwhile, through the contact and cooperation between the compression sleeve 74 and the elastic sheet 721, as well as the guiding effect of the guide sleeve 75 and the guide rod 76, the clamping force can be precisely adjusted, and the clamping degree of the guide rod 43 can be flexibly controlled according to actual needs.

[0043] In this embodiment, one end of the extrusion sleeve 74 is rotatably connected to the outer surface of the mounting plate 62, one end of the guide sleeve 75 is sleeved on the outer surface of the extrusion sleeve 74, and the other end of the guide sleeve 75 is fixed to the inner wall of the chamber 51. The outer surface of the extrusion sleeve 74 is provided with a guide groove 742 for use with the guide rod 76.

[0044] It should be noted that the guide sleeve 75 is hollow inside, and the guide groove 742 is spirally arranged around the outer surface of the extrusion sleeve 74. The guide rod 76 includes a rod body 761 fixed inside the guide sleeve 75, and a ball bearing 762 that rolls with the guide groove 742 is rotatably mounted at the end of the rod body 761. When it is necessary to hold the guide rod 43, the telescopic electric cylinder 61 drives the mounting plate 62 to move, and the mounting plate 62 drives the extrusion sleeve 74 to move along the guide sleeve 75. Since the ball bearing 762 at the end of the guide rod 76 rolls with the spiral guide groove 742 on the outer surface of the extrusion sleeve 74, the extrusion sleeve 74 will rotate simultaneously during the movement. The conical guide surface 741 on its inner side gradually presses the abutment slope 723 on the outer surface of the elastic sheet 721, causing the elastic sheet 721 to contract inward, thereby tightly holding the guide rod 43 through the anti-slip block 722 and the anti-slip protrusion 73, thus fixing the guide rod 43. When it is necessary to release the guide rod 43, the telescopic electric cylinder 61 drives the mounting plate 62 to move in the opposite direction. The compression sleeve 74 moves and rotates in the opposite direction under the action of the guide sleeve 75 and the guide rod 76, releasing the compression on the elastic sheet 721. The elastic sheet 721 returns to its original state, and the guide rod 43 is released.

[0045] To further clarify: the cylinder base 71, mounting plate 62, guide sleeve 75, etc., are made of high-strength stainless steel or low-alloy high-strength steel for marine engineering. Stainless steel, due to its excellent resistance to chloride pitting and crevice corrosion, can withstand seawater corrosion for a long time. It also has sufficient strength and rigidity to meet structural support requirements. Marine engineering steel, on the other hand, is relatively inexpensive, but it must be coated with a heavy-duty anti-corrosion coating system, such as epoxy zinc-rich primer, epoxy micaceous iron oxide intermediate paint, and polyurethane topcoat, and the coating must be ensured not to be damaged during installation and use. Its advantages include higher strength, making it suitable for larger sizes and more complex stress structures. In addition, the elastic sheet 721 requires extremely high elasticity, such as fatigue resistance, and can generate huge radial contraction force under the action of the extrusion sleeve, and completely return to its original shape after being released. The material is high-performance spring steel and undergoes special surface treatment. The anti-slip block 722 and anti-slip protrusion 73 are made of non-metallic high-performance composite materials or surface-treated metals. The extrusion sleeve 74 is made of high-strength precipitation-hardening stainless steel or nitrided steel. The guide rod 76 and the ball 762 are made of high-strength stainless steel as a whole, and the rolling contact parts are treated with ultra-hardness.

[0046] It should be noted that in this embodiment, when in use, a mode switching command is first received. If the command is to switch to the rigid fixed mode, the telescopic electric cylinder 61 is controlled to extend, driving the mounting plate 62 and the limiting rod 63 to move forward, and simultaneously driving the clamping structure 7 to clamp the guide rod 43. If the command is to switch to the elastic floating mode, the telescopic electric cylinder 61 is controlled to retract, driving the mounting plate 62 and the limiting rod 63 to move backward, and simultaneously driving the clamping structure 7 to release the guide rod 43.

[0047] To improve the performance of the ecological board assembly 4, a pressurizing component 8 is also provided inside the chamber 51 in this embodiment to work in conjunction with the ecological board assembly 4. The pressurizing component 8 consists of a pressurizing element 81 and a nozzle 82, and a connecting pipe 83 is installed between the pressurizing element 81 and the nozzle 82. The nozzle 82 is fixed to the outside of the shell 5. When the ecological board assembly 4 is in elastic floating mode, the vibration kinetic energy of the ecological board assembly 4 can be converted into the pressurizing element 81 to drive the nozzle 82 to spray gas or liquid. The air is drawn in and pressed underwater by the wave undulation, which increases the local dissolved oxygen, helps to improve the marine ecological environment, promotes the survival and reproduction of marine organisms, and further demonstrates the positive role of this structure in marine ecological protection.

[0048] In order to achieve automatic cleaning of the nozzle 82, a push rod 47 for cleaning the nozzle 82 is fixed on the outer wall of the plate 41. During the reciprocating floating process of the ecological board assembly 4, the push rod 47 will move relative to the nozzle 82 as the plate 41 moves. When the push rod 47 contacts the outlet of the nozzle 82, it will push out the blockage or attachment, ensuring the unobstructed flow of the nozzle 82 and ensuring that the pressurization assembly 8 can work normally.

[0049] In this embodiment, the pressurizing component 81 includes a pressurizing cylinder 811 fixed to the inner wall of the chamber 51. A pressurizing piston 812 is slidably disposed inside the pressurizing cylinder 811. A linkage rod 813, fixed to the end of the guide rod 43, is fixed to the outer wall of the pressurizing piston 812. A return spring 814, fixed to the outer wall of the linkage rod 813, is fixed to the inner side of the pressurizing cylinder 811. It should be noted that two check valves are installed on the pressurizing cylinder 811. One check valve is connected to the end of the connecting pipe 83, and the other check valve can be connected to a gas transmission device or extended to the outside of the caisson body 1. The connecting pipe 83 is made of a corrosion-resistant material.

[0050] Combined with appendix Figures 1-7 The working principle of the above embodiments is as follows:

[0051] Firstly, the ecological board assembly 4 is rigidly fixed. The extension of the telescopic electric cylinder 61 pushes the mounting plate 62 and the limiting rod 63 forward. Simultaneously, the mounting plate 62 drives the axial movement of the compression sleeve 74, which is rotatably connected to it. The linear movement of the compression sleeve 74, through the cooperation of its inner guide surface 741 and the abutment inclined surface 723 on the clamping block 72, and the spiral guidance of the guide groove 742 and the guide rod 76, achieves a combined rotational and axial movement. This allows the compression sleeve 74 to uniformly and forcefully radially compress the clamping block 72, which is composed of elastic sheets 721. When the clamping block 72 retracts, its inner anti-slip slider 722 and anti-slip protrusion 73 tightly grip the guide rod 43, locking it in place. At the same time, the limiting rod 63 presses against the board body 41, forming a second mechanical limit. At this point, the ecological board assembly 4, locked by the guide rod and with its front end firmly pressed, is rigidly connected to the shell 5 and the caisson body 1, unable to move, ensuring overall structural stability and resistance to harsh sea conditions.

[0052] When the ecological board assembly 4 needs to be in elastic floating mode to achieve ecological cleaning, the telescopic electric cylinder 61 retracts, pulling the mounting plate 62 and the extrusion sleeve 74 to move in the opposite direction. The extrusion sleeve 74 rotates backward along the guide groove 742, the radial pressure is released, the elastic plate 721 recovers its deformation by its own elasticity, and loosens its grip on the guide rod 43. The limit rod 63 also disengages from the surface of the board body 41. At this time, the guide rod 43 is released, and the ecological board assembly 4 is elastically connected to the shell 5 only through the buffer spring 44. Under the impact of waves and water flow, the board body 41 can reciprocate and vibrate, automatically cleaning up the excessively attached organisms and garbage, preventing the ecological board assembly 4 from failing, maintaining its long-term ecological function, and simulating the disturbance-renewal cycle of natural reefs. At the same time, the pressurization component 8 is linked with the guide rod 43, converting the vibration kinetic energy into high-pressure water flow and spraying it out from the nozzle 82. It uses the wave undulation to draw in air and press it into the water for release, increasing local dissolved oxygen.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rapid-installation caisson structure for marine geotechnical engineering, comprising a caisson body (1), a top plate (2) disposed on the top of the caisson body (1), and a plurality of piles (3) fixed between the caisson body (1) and the top plate (2), characterized in that: The outer side of the caisson body (1) is provided with an ecological board assembly (4) and a shell (5). The shell (5) has a cavity (51) inside, and the ecological board assembly (4) extends into the cavity (51). The cavity (51) is provided with an abutment mechanism (6) for adjusting the ecological board assembly (4) and a clamping structure (7). The ecological board assembly (4) includes a board body (41), a guide rod (43) fixed to one side of the board body (41) and extending into the cavity (51), and a buffer spring (44) fixed between the ecological board assembly (4) and the shell (5). The abutting mechanism (6) includes a telescopic electric cylinder (61) fixed on the inner wall of the chamber (51), a mounting plate (62) fixed on the output end of the telescopic electric cylinder (61), and a limiting rod (63) fixed on one side of the mounting plate (62) and extending to the outside of the housing (5). The distance between the limiting rod (63) and the plate (41) is controlled by the telescopic electric cylinder (61) to control the reciprocating floating of the plate (41). The clamping structure (7) clamps and fixes the guide rod (43) through the output of the telescopic electric cylinder (61). The clamping structure (7) includes a clamping block (72) that abuts against each other, a squeezing sleeve (74) and a guide sleeve (75) for guiding the squeezing sleeve (74), wherein a guide rod (76) is provided inside the guide sleeve (75).

2. The rapid-installation caisson structure for marine geotechnical engineering according to claim 1, characterized in that: The plate (41) has several honeycomb (42) distributed at equal intervals on the side away from the shell (5), and the top side of the plate (41) is provided with a wave-facing arc surface (46).

3. The rapid-installation caisson structure for marine geotechnical engineering according to claim 1, characterized in that: A corrugated telescopic sleeve (45) is fixed between the plate (41) and the shell (5) and sleeved on the outside of the buffer spring (44). A pressurizing component (8) for use with the ecological board assembly (4) is also provided inside the chamber (51).

4. The rapid-installation caisson structure for marine geotechnical engineering according to claim 3, characterized in that: The clamping structure (7) also includes a cylinder seat (71) fixed to the inner wall of the chamber (51), wherein the inside of the cylinder seat (71) is hollow, and the guide rod (43) passes through the cylinder seat (71) and the mounting plate (62) and works in conjunction with the pressurizing assembly (8).

5. A rapid-installation caisson structure for marine geotechnical engineering according to claim 4, characterized in that: The clamping block (72) includes an elastic sheet (721) welded to the end of the cylinder seat (71). An anti-slip block (722) is detachably installed on the inner side of the elastic sheet (721). Several anti-slip protrusions (73) are fixed on the inner side of the anti-slip block (722).

6. A rapid-installation caisson structure for marine geotechnical engineering according to claim 5, characterized in that: The outer surface of the elastic sheet (721) is provided with an abutting slope (723) for use with the extrusion sleeve (74). The extrusion sleeve (74) is sleeved on the outer surface of the elastic sheet (721), and the inner side of the extrusion sleeve (74) is provided with a guide surface (741) for use with the abutting slope (723).

7. A rapid-installation caisson structure for marine geotechnical engineering according to claim 6, characterized in that: The guide surface (741) is cone-shaped. One end of the extrusion sleeve (74) is rotatably connected to the outer surface of the mounting plate (62). One end of the guide sleeve (75) is fitted onto the outer surface of the extrusion sleeve (74). The other end of the guide sleeve (75) is fixed to the inner wall of the chamber (51). The outer surface of the extrusion sleeve (74) is provided with a guide groove (742) for use with the guide rod (76).

8. A rapid-installation caisson structure for marine geotechnical engineering according to claim 7, characterized in that: The guide sleeve (75) is hollow inside, and the guide groove (742) is spirally arranged around the outer surface of the extrusion sleeve (74). The guide rod (76) includes a rod body (761) fixed inside the guide sleeve (75), and a ball bearing (762) that rolls with the guide groove (742) is rotatably installed at the end of the rod body (761).

9. A rapid-installation caisson structure for marine geotechnical engineering according to claim 3, characterized in that: The pressurization assembly (8) consists of a pressurization component (81) and a nozzle (82), and a connecting pipe (83) is installed between the pressurization component (81) and the nozzle (82). The nozzle (82) is fixed to the outside of the housing (5), and a top rod (47) for cleaning the nozzle (82) is fixed on the outer wall of the plate (41).

10. A rapid-installation caisson structure for marine geotechnical engineering according to claim 9, characterized in that: The pressurizing component (81) includes a pressurizing cylinder (811) fixed to the inner wall of the chamber (51), a pressurizing piston (812) is slidably disposed inside the pressurizing cylinder (811), a linkage rod (813) fixed to the end of the guide rod (43) is fixed on the outer wall of the pressurizing piston (812), and a return spring (814) fixed to the outer wall of the linkage rod (813) is fixed on the inner side of the pressurizing cylinder (811).

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