A mud circulation device and method for bored piles in deep-sea aquaculture areas

Abstract

This invention discloses a mud circulation device and method for bored piles in deep-sea aquaculture areas, belonging to the field of offshore construction engineering. It includes: a first supporting steel pipe, multiple first supporting steel pipes fixed to the seabed by a vibratory pile driver; a construction platform detachably connected to the first supporting steel pipes; a bored pile driver installed on the construction platform; a steel casing installed adjacent to the construction platform, with its bottom fixed to the seabed and its top extending above sea level; and a mud circulation mechanism floating on the sea surface near the construction platform, connected to the mud flow channel and the steel casing. This invention solves the problem of bored pile drivers being unable to operate at sea. It utilizes a mud separator to separate the waste slurry generated during offshore bored pile operations into mud, filtrate, and solid waste. The solid waste is transferred for treatment, the filtrate is discharged into the sea after passing pH testing, and the mud can be recycled, reducing the cost of mud usage. This method has green, environmentally friendly, energy-saving, and emission-reducing effects in aquaculture areas.

Description

Technical Field

[0001] This invention relates to the field of offshore construction engineering, and in particular to a mud circulation device and method for bored piles in deep-sea aquaculture areas. Background Technology

[0002] Drilled pile foundations are a type of foundation construction project. On land, the technology is relatively mature, offering advantages such as strong adaptability, minimal impact on adjacent buildings, good seismic performance, low construction noise, simple equipment requirements, convenient operation, and construction safety, leading to their widespread use worldwide. However, when drilling pile foundations are constructed on water, the lack of stable construction platforms and the inability to arrange mud pits and sedimentation tanks necessitate the use of crane vessels and pump trucks. This not only increases costs but also imposes limitations on the crane vessels, requiring specific water depths for operation, thus impacting construction progress.

[0003] To address the aforementioned technical problems, patent application CN106320333A discloses a row-type underwater cast-in-place pile device and construction method, which utilizes adjacent steel casings as mud pits and sedimentation tanks during the construction of bored cast-in-place piles. However, this method suffers from the following problems: during underwater bored cast-in-place pile construction, the seabed soil is rich in moisture, resulting in a large amount of water in the drilling waste. The mud, carrying the waste, forms waste slurry that is discharged after being expelled. Compared to mud, the waste slurry has a larger volume and higher water content. Using adjacent steel casings as mud pits and sedimentation tanks lacks sufficient capacity and cannot filter out excess water, making it impossible to recycle the mud.

[0004] In view of this, how to provide a mud circulation device that meets the requirements of underwater bored pile engineering is a technical problem that urgently needs to be solved by those in the field. Summary of the Invention

[0005] The purpose of this invention is to provide a mud circulation device and method for bored piles in deep-sea aquaculture areas, so as to solve the problems existing in the prior art and realize mud circulation in underwater bored pile projects.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a drilling mud circulation device for bored piles in deep-sea aquaculture areas, wherein the drilling pile driver has a mud flow channel, which can output mud to the drill bit during drilling; comprising:

[0007] The first supporting steel pipe has multiple sections and is fixed to the seabed by a vibratory pile driver. The tops of the multiple first supporting steel pipes extend out of the sea surface and are at the same level.

[0008] A construction platform is provided, which is detachably connected to the top of multiple first supporting steel pipes, and the perforating pile driver is installed on the construction platform.

[0009] A steel casing is provided adjacent to the construction platform, with its bottom end fixed to the seabed and its top end extending above the sea level.

[0010] A mud circulation mechanism is floating on the sea surface and close to the construction platform. The mud circulation mechanism is connected to the mud channel and the steel casing.

[0011] Furthermore, sleeves are provided below the construction platform corresponding to multiple first support steel pipes, and the first support steel pipes can be inserted into the sleeves from bottom to top.

[0012] Furthermore, the mud circulation mechanism is located below the construction platform, and the first supporting steel pipe is disposed on the front and rear sides of the mud circulation mechanism.

[0013] Furthermore, the mud circulation mechanism includes:

[0014] A mud tank is provided, and a mud pump is installed on the mud tank. The mud pump pumps mud into the mud channel through a mud pipe.

[0015] Waste slurry tank, which is located adjacent to the mud tank and is connected to the steel casing;

[0016] The mud separator includes a waste slurry pump installed on the waste slurry tank. The waste slurry pump delivers the waste slurry to the mud separator through a waste slurry pipe. The mud separator can separate the waste slurry into mud, filtrate, and solid waste. The mud is discharged into the mud tank through a first pipe, the filtrate is discharged into the filtrate tank through a second pipe, and the solid waste is discharged into the waste residue tank through a third pipe. The mud tank, waste slurry tank, filtrate tank, and waste residue tank are all floating on the sea surface.

[0017] Furthermore, it also includes:

[0018] The second support steel pipe has multiple sections and is fixed to the seabed by a vibratory pile driver. The tops of the multiple second support steel pipes extend out of the sea surface and are at the same level.

[0019] A support platform is provided, which is detachably connected to the top end of the second support steel pipe, and the mud separator is installed on the support platform.

[0020] Furthermore, the mud tank, waste slurry tank, filtrate tank, and waste residue tank are all made of canvas, and a corrosion-resistant metal frame is fixedly installed outside the tank.

[0021] Furthermore, it also includes a hoisting rope. The corrosion-resistant metal frame is provided with a connecting crank, and the first supporting steel pipe is provided with a connecting lug. One end of the hoisting rope is connected to the connecting lug, and the other end is connected to the connecting crank. The hoisting rope can fix the mud tank, waste slurry tank, filtrate tank, and waste residue tank.

[0022] Furthermore, hooks are provided on the outer surface of the corrosion-resistant metal frame of the waste residue pool.

[0023] Furthermore, a pH sensor is installed in the filtrate tank, and a drain pipe with a drain valve is installed at the bottom of the filtrate tank; a mud concentration sensor is installed in the mud tank, and a waste residue depth sensor is installed in the waste residue tank. Both the mud concentration sensor and the waste residue depth sensor are communicatively connected to the controller, and the controller is communicatively connected to the alarm. The controller and the alarm are mounted on the support platform.

[0024] This invention also discloses a method for circulating drilling mud in bored piles in deep-sea aquaculture areas, comprising the following steps:

[0025] When the drilling pile driver starts drilling, the mud pump pumps the mud into the mud channel. The mud flows along the mud channel to the drill bit. The mud carries the waste generated by the drill bit and rises along the inner cavity of the steel casing. Near the top of the steel casing, it enters the waste slurry pipe and flows to the waste slurry pool by its own gravity.

[0026] The waste slurry pump pumps the waste slurry to the mud separator, which separates the waste slurry into mud, filtrate and solid waste residue. The mud is discharged into the mud tank through the first pipe, the filtrate is discharged into the filtrate tank through the second pipe, and the solid waste residue is discharged into the waste residue tank through the third pipe, forming a positive circulation of mud.

[0027] The pH value of the water in the filtrate tank is tested. When the pH value meets the discharge standard, the drain pipe is opened and the water in the filtrate tank is discharged into the sea.

[0028] When the solid waste in the waste slag pool is full, the hoisting rope between the waste slag pool and the first supporting steel pipe is untied, and the waste slag pool is transported to land for transfer. At the same time, another waste slag pool is connected to the first supporting steel pipe by a hoisting rope, and then connected to the mud separator through the third pipe.

[0029] The present invention discloses the following technical effects:

[0030] 1. By fixing a first supporting steel pipe next to the steel casing with a vibratory pile driver, and setting up a construction platform above the first supporting steel pipe, the problem of the inability of the percussion pile driver to carry out construction at sea is solved.

[0031] 2. The first supporting steel pipe is detachably connected to the construction platform, and the second supporting steel pipe is also detachably connected to the supporting platform. After the drilling and piling machine finishes its work, each piece of equipment can be quickly disassembled.

[0032] 3. The mud tank, waste slurry tank, filtrate tank and waste residue tank are all made of canvas as the tank body, and the tank body is equipped with a corrosion-resistant metal frame. It can float on the sea surface and has good structural strength. Each tank body is supported by seawater buoyancy and is connected and fixed to the first supporting steel pipe by suspension ropes. The structure is simple, easy to use and has strong stability.

[0033] 4. The mud pit, waste slurry pit, filtrate pit and waste residue pit are located below the construction platform, and the first supporting steel pipe is set on the front and rear sides of each pit to protect each pit and prevent it from being overturned by large waves.

[0034] 5. The mud separator can separate the water-rich waste slurry generated during offshore drilling operations into mud, filtrate, and solid waste. The solid waste is transferred and treated, the filtrate is discharged into the sea after passing pH testing, and the mud can be recycled, reducing the cost of mud use and effectively protecting the ecological environment of aquaculture areas. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the mud circulation mechanism;

[0038] Figure 3 This is a schematic diagram of the construction platform structure;

[0039] Figure 4 This is a schematic diagram of the supporting platform structure;

[0040] Figure 5 This is a schematic diagram of the crankshaft connection structure;

[0041] The components include: 1. Drilling and piling machine; 2. First supporting steel pipe; 3. Construction platform; 4. Steel casing; 5. Sleeve; 6. Mud pit; 7. Mud pump; 8. Mud pipe; 9. Waste slurry pit; 10. Mud separator; 11. Waste slurry pump; 12. Waste slurry pipe; 13. First pipeline; 14. Second pipeline; 15. Third pipeline; 16. Filtration tank; 17. Waste residue tank; 18. Second supporting steel pipe; 19. Support platform; 20. Lifting rope; 21. Connecting crank; 22. Connecting lug; 23. Hook; 24. Drainage pipe. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Reference Figures 1-5 This invention provides a drilling mud circulation device for bored piles in deep-sea aquaculture areas. The drilling pile driver 1 has a mud channel that can output mud to the drill bit during drilling. It includes: a first support steel pipe 2, multiple first support steel pipes 2 are fixed to the seabed by a vibratory pile driver, and the top ends of the multiple first support steel pipes 2 extend out of the sea surface and are at the same level; a construction platform 3, the construction platform 3 is detachably connected to the top ends of the multiple first support steel pipes 2, and the drilling pile driver 1 is set on the construction platform 3; a steel casing 4, the steel casing 4 is set adjacent to the construction platform 3, the bottom end of the steel casing 4 is fixed to the seabed, and the top end extends out of the sea surface; and a mud circulation mechanism, the mud circulation mechanism is floating on the sea surface and close to the construction platform 3, and the mud circulation mechanism is connected to the mud channel and the steel casing 4.

[0045] like Figure 3 As shown, sleeves 5 are provided below the construction platform 3 corresponding to multiple first support steel pipes 2, and the first support steel pipes 2 can be inserted into the sleeves 5 from bottom to top. Figure 1 and Figure 2 As shown, the mud circulation mechanism is located below the construction platform 3. The first support steel pipe 2 is set on the front and rear sides of the mud circulation mechanism. In some other embodiments, the distance between adjacent first support steel pipes 2 can be set as small as possible, or directly set to a tight fit, so as to protect the inner mud circulation mechanism when the waves are large.

[0046] like Figure 2As shown, the mud circulation mechanism includes: a mud tank 6, on which a mud pump 7 is installed, which pumps mud into the mud flow channel through a mud pipe 8; a waste slurry tank 9, which is adjacent to the mud tank 6 and connected to the steel casing 4; and a mud separator 10, on which a waste slurry pump 11 is installed, which pumps waste slurry into the mud separator 10 through a waste slurry pipe 12. The mud separator 10 can separate the waste slurry into mud, filtrate, and solid waste. The mud is discharged into the mud tank 6 through a first pipe 13, the filtrate is discharged into the filtrate tank 16 through a second pipe 14, and the solid waste is discharged into the waste residue tank 17 through a third pipe 15. The mud tank 6, waste slurry tank 9, filtrate tank 16, and waste residue tank 17 are all floating on the sea surface. To reduce the footprint of each tank and lower the length requirements of each pipeline, this embodiment arranges the mud tank 6, waste slurry tank 9, filtrate tank 16, and waste residue tank 17 as follows: Figure 2 The arrangement is as shown, with the mud filter placed in the middle of the four pools. A land-based mud filter can be used for this purpose.

[0047] like Figure 4 As shown, it also includes: a second support steel pipe 18, of which there are multiple second support steel pipes 18 and are fixed to the seabed by a vibratory pile driver, with the top ends of the multiple second support steel pipes 18 extending out of the sea surface and at the same level; a support platform 19, which is detachably connected to the top ends of the second support steel pipes 18, and a mud separator 10 is installed on the support platform 19.

[0048] like Figure 2 As shown, mud tank 6, waste slurry tank 9, filtrate tank 16, and waste residue tank 17 are all made of canvas, with a corrosion-resistant metal frame fixed to the outside of the tanks. Suspension rope 20 is also included. Figure 2 (Only the hoisting rope 20 corresponding to mud tank 6 is shown in the diagram). A connecting crank 21 is provided on the anti-corrosion metal frame, and a connecting lug 22 is provided on the first supporting steel pipe 2. One end of the hoisting rope 20 is connected to the connecting lug 22, and the other end is connected to the connecting crank 21. The hoisting rope 20 can fix mud tank 6, waste slurry tank 9, filtrate tank 16, and waste residue tank 17. In this embodiment, a hook 23 is provided on the outer surface of the anti-corrosion metal frame of waste residue tank 17. The hook 23 can be connected to the hull via a towing rope to facilitate the transfer and treatment of solid waste residue. A pH sensor is provided in filtrate tank 16, and a drain pipe 24 is provided at the bottom of filtrate tank 16 with a drain valve. A mud concentration sensor is provided in mud tank 6, and a waste residue depth sensor is provided in waste residue tank 17. Both the mud concentration sensor and the waste residue depth sensor are communicatively connected to the controller, which is communicatively connected to the alarm. The controller and the alarm are located on the support platform 19.

[0049] In this embodiment, an anti-collision air cushion can be installed on the outer side of the first supporting steel pipe 2 or the anti-corrosion metal frame to prevent the tanks from colliding with the first supporting steel pipe 2 when the wind and waves are too strong, causing mud, filtrate, etc. to overflow into the aquaculture area and cause pollution, thereby further improving the green and environmental protection.

[0050] The mud circulation method includes the following steps: fixing the first support steel pipe 2 and the second support steel pipe 18 to a preset position using a vibratory pile driver; fixing the steel casing 4 to the position where the bored pile needs to be drilled; hoisting the construction platform 3 above the first support steel pipe 2 and connecting it to the first support steel pipe 2; hoisting the support platform 19 above the second support steel pipe 18 and connecting it to the second support steel pipe 18; hoisting the percussion pile driver 1 onto the construction platform 3; hoisting the mud separator 10 onto the support platform 19; moving the mud tank 6, waste slurry tank 9, filtrate tank 16, and waste residue tank 17 to below the construction platform 3 and fixing them to multiple first support steel pipes 2 using hoisting ropes 20.

[0051] When the drilling pile driver 1 starts drilling, the mud pump 7 pumps mud into the mud channel. The mud flows along the mud channel to the drill bit. The mud carries the waste generated by the drill bit and rises along the inner cavity of the steel casing 4. Near the top of the steel casing 4, it enters the waste slurry pipe 12 and flows to the waste slurry pool 9 by its own gravity. The waste slurry pump 11 pumps the waste slurry into the mud separator 10. The mud separator 10 separates the waste slurry into mud, filtrate and solid waste. The mud is discharged into the mud pool 6 through the first pipe 13, the filtrate is discharged into the filtrate pool 16 through the second pipe 14, and the solid waste is discharged into the waste slurry pool 17 through the third pipe 15, forming a positive mud circulation.

[0052] The pH value of the water in the filtrate tank 16 is tested. When the pH value meets the discharge standard, the drain pipe 24 is opened to discharge the water in the filtrate tank 16 into the sea. The mud concentration in the mud tank 6 is monitored in real time by a mud concentration sensor. When the mud concentration exceeds the preset range, the mud concentration sensor sends a signal to the controller, and the controller activates the alarm. When the solid waste in the waste residue tank 17 is full, the solid waste comes into contact with the waste residue depth sensor. At this time, the waste residue depth sensor sends a signal to the controller, and the controller can also activate the alarm. Different sensors can issue different alarms.

[0053] Once the waste slag pool 17 is full, the hoisting rope 20 between the waste slag pool 17 and the first supporting steel pipe 2 can be untied. The waste slag pool 17 can then be secured to the transport vessel via a traction rope and hook 23 and transported to land for transfer. Simultaneously, another waste slag pool 17 can be connected to the first supporting steel pipe 2 via the hoisting rope 20, and connected to the mud separator 10 via a third pipe 15. In some other embodiments, the waste slag pool 17 can be fixed to the transport vessel. In this case, the waste slag pool 17 can be fixed at a designated location by anchoring the transport vessel at sea instead of being connected to the steel pipe 2 via the hoisting rope 20. When the waste slag depth sensor sends a signal to the controller, the controller can synchronously drive the transport vessel to transfer the waste slag to land along a preset route. After unloading the solid waste slag, the vessel returns along the same route, improving the digitalization and informatization of solid waste slag transfer and processing. In some other embodiments, solid waste can form a waste cake in the mud separator 10. The mud separator 10 with this function can be discharged without replacing another waste tank 17, but only after the waste tank 17 full of waste cake has unloaded the waste cake.

[0054] This invention provides a mud circulation device and method for bored piles in deep-sea aquaculture areas. A first supporting steel pipe 2 is fixedly installed next to a steel casing 4 using a vibratory pile driver. A construction platform 3 is installed above the first supporting steel pipe 2, solving the problem that the percussion pile driver 1 cannot operate at sea. The first supporting steel pipe 2 and the construction platform 3 are detachably connected, as are the second supporting steel pipe 18 and the supporting platform 19. This allows for quick disassembly of all equipment after the percussion pile driver 1 has finished its work. The mud tank 6, waste slurry tank 9, filtrate tank 16, and waste residue tank 17 are all constructed with canvas as the tank body, with a corrosion-resistant metal frame outside the tank. This allows them to float on the sea surface and provides good structural strength. Each tank is supported by seawater buoyancy and connected to the first supporting steel pipe 2 by a suspension rope 20. The structure is simple, easy to use, and highly stable. Mud tank 6, waste slurry tank 9, filtrate tank 16, and waste residue tank 17 are located below construction platform 3, with the first supporting steel pipe 2 installed on the front and rear sides of each tank, providing protection to prevent them from being overturned by large waves. The mud separator 10 separates the water-rich waste slurry generated during offshore drilling operations into mud, filtrate, and solid waste residue. The solid waste residue is transferred for disposal, the filtrate is discharged into the sea after passing pH testing, and the mud can be recycled, reducing the cost of mud usage and effectively protecting the ecological environment of the aquaculture area.

[0055] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0056] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A method for circulating drilling mud in bored piles in deep-sea aquaculture areas, characterized in that, The drilling mud circulation device for deep-sea aquaculture area bored piles includes a drilling machine (1) with a mud flow channel that can output mud to the drill bit during drilling; the drilling mud circulation device for deep-sea aquaculture area bored piles includes: The first supporting steel pipe (2) has multiple first supporting steel pipes (2) and is fixed to the seabed by a vibratory pile driver. The tops of the multiple first supporting steel pipes (2) extend out of the sea surface and are at the same level. Construction platform (3), the construction platform (3) is detachably connected to the top of multiple first supporting steel pipes (2), and the punching pile driver (1) is set on the construction platform (3); A steel casing (4) is provided adjacent to the construction platform (3). The bottom end of the steel casing (4) is fixed to the seabed, and the top end extends out of the sea surface. A mud circulation mechanism is floating on the sea surface and close to the construction platform (3). The mud circulation mechanism is connected to the mud flow channel and the steel casing (4). The mud circulation mechanism includes: A mud tank (6) is provided with a mud pump (7), which pumps mud into the mud channel through a mud pipe (8). Waste slurry tank (9), which is adjacent to the mud tank (6) and is connected to the steel casing (4); The mud separator (10) is equipped with a waste slurry pump (11) on the waste slurry tank (9). The waste slurry pump (11) pumps the waste slurry into the mud separator (10) through the waste slurry pipe (12). The mud separator (10) can separate the waste slurry into mud, filtrate and solid waste residue. The mud is discharged into the mud tank (6) through the first pipe (13). The filtrate is discharged into the filtrate tank (16) through the second pipe (14). The solid waste residue is discharged into the waste residue tank (17) through the third pipe (15). The mud tank (6), waste slurry tank (9), filtrate tank (16) and waste residue tank (17) are all floating on the sea surface. The mud tank (6), waste slurry tank (9), filtrate tank (16) and waste residue tank (17) are all made of canvas, and a corrosion-resistant metal frame is fixedly installed outside the tank. It also includes a hoisting rope (20), a connecting crank (21) is provided on the anti-corrosion metal frame, and a connecting ear (22) is provided on the first supporting steel pipe (2). One end of the hoisting rope (20) is connected to the connecting ear (22), and the other end is connected to the connecting crank (21). The hoisting rope (20) can fix the mud tank (6), waste slurry tank (9), filtrate tank (16) and waste residue tank (17). A pH sensor is installed in the filtrate tank (16), and a drain pipe (24) is installed at the bottom of the filtrate tank (16). A drain valve is installed on the drain pipe (24). A mud concentration sensor is installed in the mud tank (6), and a waste residue depth sensor is installed in the waste residue tank (17). Both the mud concentration sensor and the waste residue depth sensor are connected to the controller. The controller is connected to the alarm. The controller and the alarm are installed on the support platform (19). Includes the following steps: When the drilling rig (1) starts drilling, the mud pump (7) pumps the mud into the mud channel. The mud flows along the mud channel to the drill bit. The mud carries the waste generated by the drill bit and rises along the inner cavity of the steel casing (4). Near the top of the steel casing (4), it enters the waste slurry pipe (12) and flows to the waste slurry pool (9) by its own gravity. The waste slurry pump (11) pumps the waste slurry to the mud separator (10), which separates the waste slurry into mud, filtrate and solid waste residue. The mud is discharged into the mud tank (6) through the first pipe (13), the filtrate is discharged into the filtrate tank (16) through the second pipe (14), and the solid waste residue is discharged into the waste residue tank (17) through the third pipe (15), forming a positive circulation of mud. The pH value of the water in the filtrate tank (16) is tested. When the pH value meets the discharge standard, the drain pipe (24) is opened to discharge the water in the filtrate tank (16) into the sea. When the solid waste in the waste slag pool (17) is full, the hoisting rope (20) between the waste slag pool (17) and the first supporting steel pipe (2) is untied, and the waste slag pool (17) is transported to land for transfer. At the same time, another waste slag pool (17) is connected to the first supporting steel pipe (2) through the hoisting rope (20), and connected to the mud separator (10) through the third pipe (15).

2. The method for mud circulation in bored piles in deep-sea aquaculture areas according to claim 1, characterized in that, Below the construction platform (3), there are sleeves (5) corresponding to multiple first support steel pipes (2), and the first support steel pipes (2) can be inserted into the sleeves (5) from bottom to top.

3. The method for mud circulation in bored piles in deep-sea aquaculture areas according to claim 1, characterized in that, The mud circulation mechanism is located below the construction platform (3), and the first supporting steel pipe (2) is arranged on the front and rear sides of the mud circulation mechanism.

4. The method for mud circulation in bored piles in deep-sea aquaculture areas according to claim 1, characterized in that, Also includes: The second support steel pipe (18) has multiple sections and is fixed to the seabed by a vibratory pile driver. The tops of the multiple second support steel pipes (18) extend out of the sea surface and are at the same level. The support platform (19) is detachably connected to the top of the second support steel pipe (18), and the mud separator (10) is installed on the support platform (19).

5. The method for mud circulation in bored piles in deep-sea aquaculture areas according to claim 1, characterized in that, The outer surface of the corrosion-resistant metal frame of the waste residue pool (17) is provided with hooks (23).

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