Artificial inserted drainage plate device for soft foundation treatment of hydraulic fill

Abstract

The application provides a kind of soft foundation treatment artificial insertion drainage plate device for hydraulic fill, and relates to the field of hydraulic fill construction.It includes a pad and a insertion rod, the pad is provided on the soft foundation, the middle part of the pad is provided with a insertion hole, the insertion rod passes through the insertion hole and presses the drainage plate into the set soft foundation depth;The pad is provided with a support, the top of the support is provided with a rotating disc rotating around the support, the insertion rod is provided on the rotating disc, and the insertion rod and the rotating disc are connected by threads.The middle part of the rotating disc is provided with a threaded hole coaxial with the insertion hole, and the outer wall of the insertion rod is provided with an external thread, which is adaptively screwed in the threaded hole by the external thread.The application has the effect of improving the efficiency of artificial insertion of drainage plate and reducing the labor intensity of operators.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of construction of soft foundation by hydraulic fill, in particular to a device for manually inserting drainage plate in soft foundation by hydraulic fill. BACKGROUND

[0002] Hydraulic fill is used for urban construction and industrial and agricultural production, which effectively alleviates the contradiction between economic development and insufficient construction land. Hydraulic fill has the characteristics of high water content, high compressibility and poor structure, and needs to be reinforced after construction. In the treatment project, the soil quality of hydraulic fill is often unevenly distributed, and the hardness of the soil body in the same hydraulic fill area often has a large difference. For example, newly filled soil is mostly soft and difficult to support heavy pile machines, so shallow vacuum preloading soft foundation treatment is needed before deep vacuum preloading soft foundation treatment to improve the bearing capacity of the hydraulic fill and provide support for the mechanical access of deep vacuum preloading soft foundation treatment.

[0003] At present, during the shallow vacuum preloading soft foundation treatment process, plastic drainage plates are inserted into the soft foundation formed by hydraulic fill to drain the accumulated water in the soft foundation, and the insertion of the drainage plates is generally carried out by a special plate insertion machine or manually.

[0004] However, the plate insertion machine is expensive and difficult to move on the soft foundation, and needs to lay a certain thickness of sand cushion or other working cushion, which increases the construction difficulty and engineering cost. If an iron rod or other tool is used to manually insert and hit the drainage plate, the work efficiency is too low, and when encountering hard obstacles, a lot of physical effort is needed to break through the obstacles and send the drainage plate to the designed depth. SUMMARY

[0005] In order to improve the problem of low efficiency and large labor of manually inserting and hitting the drainage plate, the present application provides a device for manually inserting drainage plate in soft foundation by hydraulic fill.

[0006] The device for manually inserting drainage plate in soft foundation by hydraulic fill comprises a pad and an insertion rod, the pad is arranged on the soft foundation, the middle part of the pad is provided with an insertion hole, and the insertion rod penetrates through the insertion hole and presses the drainage plate into the designed depth of the soft foundation.

[0007] A support is arranged on the pad, the top of the support is provided with a rotating disc rotating around the support, the insertion rod is arranged on the rotating disc, and the insertion rod and the rotating disc are connected through threads.

[0008] By adopting the technical scheme, the area of the cushion plate is large, and an operator standing on the cushion plate can operate more stably, thereby avoiding extra consumption of physical strength for maintaining body stability; in the operation process, the end of the drain pipe is placed on the top of the insertion hole, the lower part of the insertion rod is abutted against the drain plate, then the rotating disc is placed on the support, the insertion rod is held and the rotating disc is rotated, so that the insertion rod is threadedly connected with the rotating disc, since the lower part of the insertion rod abuts against the drain plate and the insertion rod is coaxially arranged with the insertion hole, thus the driving effect of the insertion rod can be realized by rotating the rotating disc, that is, the insertion rod rotates and moves downward to the deep part of the soft foundation, in the process of rotating and moving downward, the drain plate is pressed into the deep part of the soft foundation, by reasonable selection of the outer diameter of the rotating disc, the driving force for rotating the rotating disc can be effectively reduced, the structure of a labor-saving lever is formed, the labor intensity of the operator is reduced, the continuity of manual insertion and driving of the drain plate by the operator is improved, and the overall work efficiency is improved.

[0009] Optionally, a middle part of the rotating disc is provided with a threaded hole coaxial with the insertion hole, and an outer wall of the insertion rod is provided with an external thread, and the insertion rod is screwingly arranged in the threaded hole in a matched mode.

[0010] By adopting the technical scheme, the insertion rod is threadedly connected with the threaded hole on the rotating disc, so that the insertion rod is driven by rotating the rotating disc and clamping of the soft foundation, the insertion rod rotates and moves downward, and in the process of moving downward, the drain plate is brought to the set position in the deep part of the soft foundation, then the rotating disc is reversely rotated to pull out the insertion rod from the soft foundation, the drain plate stays in the soft foundation by the friction force between the drain plate and the soft foundation, and will not be reset with the insertion rod, so that the accumulated water in the soft foundation can be discharged outward through the drain plate after the soft foundation is subjected to the downward pressure, and the water content of the soft foundation is effectively reduced.

[0011] Optionally, the insertion rod is a hollow and through-tube structure, a breaking punch is arranged in the insertion rod, the breaking punch moves up and down in the insertion rod under the traction of the traction rope, the lower part of the breaking punch is in a sharp cone shape, and the lower part of the breaking punch extends to the outside of the insertion rod.

[0012] By adopting the technical scheme, when the lower end of the insertion rod encounters a hard object, the traction rope is pulled to the outside of the insertion rod, so that the breaking punch moves upward under the traction of the traction rope, the traction rope is loosened when the breaking punch is displaced to the highest point of the insertion rod, and the breaking punch moves downward under the action of gravity, after contacting the hard object, the breaking punch in the sharp cone shape impacts the hard object and breaks the hard object, so that the hard object can be effectively removed to ensure that the insertion rod can move downward with the drain plate.

[0013] Optionally, one end of the traction rope is connected to the top of the breaking punch, and the other end of the traction rope extends outward from the top of the insertion rod.

[0014] By adopting the above technical scheme, the operator can stand stably on the pad and pull the traction rope to pull the breaking punch, ensuring that the breaking punch can be lifted to a sufficient height for breaking hard objects, so that the insertion rod can be smoothly and continuously drilled downward.

[0015] Optionally, an air bag is arranged on the inner side of the lower end of the insertion rod, and the air bag clamps the upper part of the breaking punch.

[0016] By adopting the above technical scheme, the air bag is arranged at the lower end of the insertion rod, and after clamping the breaking punch, it plays a limiting role on the breaking punch, which can prevent the mud in the soft foundation from entering the insertion rod and filling the insertion rod during the downward drilling of the insertion rod, so that the breaking punch is squeezed out and cannot be broken by the free falling of the breaking punch in the insertion rod when the insertion rod encounters a hard object. That is, through the clamping action of the air bag on the breaking punch, the fixing of the breaking punch and the sealing of the insertion rod are realized, ensuring that the insertion rod is always in a hollow state, and further ensuring that the breaking punch can move in the insertion rod and reliably impact and break the hard object.

[0017] Optionally, an air pipe is arranged in the insertion rod, one end of the air pipe is in communication with the air bag, the other end of the air pipe is in a closed state, and a plurality of air channels are further arranged on the insertion rod, one end of the air channel is in communication with the outer wall of the insertion rod, and the other end of the air channel points to the air pipe.

[0018] By adopting the above technical scheme, the air pipe is in communication with the air bag, and the air channel is in communication with the outside of the insertion rod, so that when it is necessary to release the clamping action of the air bag on the breaking punch, a sharp object such as a needle tube can be used to pierce the air pipe through the air channel, and the gas in the air pipe and the air bag is released outward, so that the air bag shrinks, and the clamping action on the breaking punch is released. The air pipe is made of rubber material and can recover after the needle tube is pulled out, without causing gas leakage; a corresponding connector can be arranged between the air pipe and the air channel to prevent the needle tube from being frequently inserted and pulled out, causing the air pipe to be damaged and leaking.

[0019] Optionally, the air pipe does not interfere with the breaking punch, and the maximum outer diameter of the breaking punch is smaller than the minimum inner diameter of the insertion rod.

[0020] By adopting the technical scheme, the air pipe is embedded in the inside of the inserting rod, so that the broken punch can not interfere with the air pipe during the process of rising or falling, the air pipe is not damaged, the control of the expansion and contraction of the air bag is lost, the broken punch cannot be clamped or released, further, the maximum outer diameter of the broken punch is smaller than the inserting rod, so that the upper part of the broken punch can also move towards the outside of the inserting rod, and the breaking effect on the hard object is improved.

[0021] Optionally, a inserting rod flushing mechanism is arranged between the backing plate and the rotary disc, the inserting rod flushing mechanism comprises a shell and a plurality of water spraying heads arranged in the shell, the inner diameter of the shell gradually decreases from top to bottom, the inserting rod passes through the shell, the plurality of water spraying heads are arranged on the inner wall of the shell at intervals, and the distance between the end face of the water spraying head and the inner wall of the shell is the same.

[0022] By adopting the technical scheme, in the process of reversely rotating the inserting rod and pulling out the inserting rod upwards, clay is adhered to the outer thread of the inserting rod, at this time, the water spraying heads in the shell are opened, the plurality of water spraying heads flush the inserting rod from different angles to prevent the clay from moving to the threaded connection between the inserting rod and the rotary disc and causing damage to the thread; further, the inner diameter of the shell gradually decreases from top to bottom, that is, the axial section of the shell is trumpet-shaped, so that the clay flushed by the water spraying heads can flow downwards along the inner wall of the shell, avoiding the clay from adhering to the outer wall of the inserting rod again, and the distance between the water spraying head and the outer wall of the inserting rod gradually decreases from top to bottom, so that the water spraying head on the lower side is close to the inserting rod, the impact force of the water flow on the inserting rod is improved, ensuring that most of the clay can be blown away from the outer thread of the inserting rod, the water spraying head on the upper side is far away from the inserting rod, the water flow has a larger acting area on the inserting rod, and the remaining clay can be removed, and a water flow flowing downwards is formed on the outer wall of the inserting rod, effectively preventing the clay from adhering to the outer thread of the inserting rod again after impacting the outer wall of the shell, ensuring that no clay enters the threaded connection between the inserting rod and the rotary disc, and the thread is protected, so that the inserting rod can be effectively inserted and pulled out by the forward and reverse rotation of the rotary disc, and the drainage plate can be inserted into the set position in the soft foundation by the insertion and pulling out of the inserting rod.

[0023] Optionally, a water supply pipe and a sewage pipe are further arranged on the outer wall of the shell, the water supply pipe supplies water to the plurality of water spraying heads, and the sewage pipe is arranged at the lower part of the shell and is used for discharging sewage containing mud.

[0024] By adopting the technical scheme, the water supply pipe supplies water to the plurality of water spraying heads, ensuring that the plurality of water spraying heads can spray water flow with high pressure, which is used for washing the clay on the inserting rod, and after the clay is washed away from the inserting rod, the clay mixes with the water flow at the bottom of the inner side of the shell to form slurry, the slurry can be discharged from the shell through the drain pipe, and a water pump can be arranged on the drain pipe to accelerate the discharge speed of the slurry, ensuring that the liquid level of the slurry is not higher than one fourth of the height of the shell, so that the part of the inserting rod located at the upper part of the inner side of the shell can always be kept clean, and the stable threaded connection between the rotating disc and the inserting rod is ensured.

[0025] Optionally, the rotating disc is provided with a plurality of holding areas, and the holding areas penetrate through the rotating disc and are close to the outer edge of the rotating disc.

[0026] The bottom of the rotating disc is provided with an annular sliding groove, the bottom of the support is connected with the top of the base plate, and the top of the support is adapted to slide in the sliding groove.

[0027] By adopting the technical scheme, the holding areas on the rotating disc are used for the operator to hold, so that the operator can stand on the base plate to rotate the rotating disc; the sliding groove cover at the bottom of the rotating disc is arranged on the upper part of the support, the support can slide in the sliding groove and has no connection relationship with the sliding groove, so that after the drain plate is inserted, the rotating disc can be quickly taken off from the support, the whole device can be quickly transferred, and the working efficiency is improved.

[0028] In summary, the present application has the following beneficial effects:

[0029] 1. The inserting rod and the rotating disc are connected through threads, the rotating disc can drive the rotating and downward movement of the inserting rod, the drain plate can be pressed into the soft foundation during the rotating of the inserting rod into the soft foundation, the rotating disc and the inserting rod form a labor-saving lever structure, the labor intensity of the operator is reduced, the inserting rod and the drain plate can be more easily inserted into the soft foundation, and the working efficiency is improved.

[0030] 2. The breaking punch in the inserting rod is lifted through the traction rope, and the impact force of the free falling of the breaking punch is used to impact and break the hard object that hinders the downward movement of the inserting rod, so that the inserting rod can drive the displacement of the drain plate to the set position in the soft foundation.

[0031] 3. The clay adhered to the outer threads of the inserting rod is washed through the inserting rod washing mechanism arranged between the rotating disc and the base plate, the clay brought out during the pulling out of the inserting rod is prevented from being stuck at the threaded connection between the inserting rod and the rotating disc, and the threaded connection between the inserting rod and the rotating disc is prevented from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic perspective view of the present application;

[0033] Figure 2 This is a reference diagram of the internal structure of this application;

[0034] Figure 3 It is a schematic 3D diagram of the turntable;

[0035] Figure 4 yes Figure 2 Reference diagram of the action state;

[0036] Figure 5 yes Figure 1 A schematic enlarged view of a portion at point A in the middle;

[0037] In the diagram: 1. Pad; 11. Anchor pin; 12. Insertion hole; 13. Bracket;

[0038] 2. Insert rod; 21. External thread; 22. Air passage;

[0039] 3. Turntable; 31. Threaded hole; 32. Grip area; 33. Slide groove;

[0040] 4. Crushing punch; 41. Traction rope;

[0041] 5. Airbag; 50. Trachea;

[0042] 6. Pole flushing mechanism; 61. Housing; 62. Spray head; 63. Water supply pipe; 64. Sewage pipe. Detailed Implementation

[0043] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0044] Figure 1 This is a schematic perspective view of this application. See also Figure 1 A device for manually inserting drainage boards for treating soft soil foundations by dredging and filling includes a pad 1, a rod 2, and a turntable 3. The pad 1 is anchored to the soft foundation by a pair of anchors 11. When the device moves, one of the anchors 11 can be pulled out and the pad 1 can be rotated around the other anchor 11, thus enabling rapid movement of the device. Moving the pad 1 in this way allows adjacent drainage boards to approach each other, facilitating the subsequent series connection of multiple drainage boards. The pad 1 has an insertion hole 12 in the middle, and the turntable 3 has a threaded hole 31 in the middle. The rod 2 passes through the threaded hole 31 and the insertion hole 12 in sequence and moves into the depth of the soft foundation. Furthermore, the outer wall of the rod 2 has an external thread 21. Through the engagement of the external thread 21 with the threaded hole 31, the rod 2 and the turntable 3 are threadedly connected, and the rod 2 and the insertion hole 12 are separated from each other.

[0045] Figure 2 This is a reference diagram of the internal structure of this application. See also: Figure 2, when the drainage board is inserted, the end of the flexible long strip-shaped drainage board is placed on the top of the insertion hole 12, and the rotating disc 3 is vertically pressed down to the insertion rod 2 in the process of clamping the sliding groove 33 at the bottom of the rotating disc 3 into the support 13 at the top, so that the insertion rod 2 and the end of the drainage board pressed by the insertion rod 2 are simultaneously pressed into the soft foundation for a distance, and when the support 13 is connected with the sliding groove 33, the rotating disc 3 can be rotated around the axis of the pad 1 under the cooperation of the support 13 and the sliding groove 33, and since the rotating disc 3 and the insertion rod 2 are connected by threads and the lower end of the insertion rod 2 has been inserted into the soft foundation, the rotation of the rotating disc 3 can realize the driving effect of the insertion rod 2, that is, the insertion rod 2 is driven to rotate and move down, continuously drills into the deep part of the soft foundation, and in the process of the movement of the insertion rod 2, the drainage board is continuously brought into the soft foundation, so that one end of the drainage board is located at the set position in the deep part of the soft foundation and the other end is located above the soft foundation, so that after subsequent pressure is applied on the soft foundation, the accumulated water in the soft foundation is pressed into one end of the drainage board and discharged from the other end of the drainage board, achieving the purpose of reducing the water content of the soft foundation.

[0046] Figure 3 is a schematic perspective view of the rotating disc. Referring to Figure 3 , the operator stands on the pad 1 and can exert force in a more comfortable posture, avoiding the instability of the center of gravity when standing directly on the soft foundation with high softness and the need for additional force to control the balance, and at the same time, the rotating disc 3 and the insertion rod 2 form a lever structure, so that the insertion and extraction of the insertion rod 2 can be more easily realized by the forward or reverse rotation of the rotating disc 3, greatly reducing the labor intensity of the operator and enabling the operator to work continuously, thereby improving the overall work efficiency. The rotating disc 3 is provided with a plurality of gripping areas 32, and the operator can more easily rotate the rotating disc 3 by gripping the gripping areas 32, thereby realizing the movement of the drainage board to the set position in the deep part of the soft foundation by driving the insertion rod 2. The sliding groove 33 at the bottom of the rotating disc 3 has no connection relationship with the support 13, and when the drainage board is inserted, the support 13 is inserted into the sliding groove 33, so that the rotating disc 3 can be rotated under the support of the support 13, and after the insertion of the drainage board is completed, the rotating disc 3 can be directly lifted to realize the rapid disassembly and transfer of the device.

[0047] Figure 4 is a reference diagram of the action state of Figure 2 . Referring to Figure 4The insertion rod 2 is hollow and tubular, and the breaking punch 4 and the traction rope 41 are arranged in the insertion rod 2. One end of the traction rope 41 is connected to the top of the breaking punch 4, and the other end of the traction rope 41 extends outward from the top of the insertion rod 2 and is held by the operator. The lower end of the insertion rod 2 is provided with an air bag 5 clamping the upper part of the breaking punch 4. The inside of the insertion rod 2 is provided with an air pipe 50. A plurality of transverse air passages 22 are arranged on the outer thread 21 of the insertion rod 2. One end of the air pipe 50 is communicated with the air bag 5, and the other end of the air pipe 50 is closed. One end of the air passage 22 is communicated with the outer surface of the insertion rod 2, and the other end of the air passage 22 points to the air pipe 50. The maximum outer diameter of the breaking punch 4 is smaller than the minimum inner diameter of the insertion rod 2. The breaking punch 4 can move up and down in the insertion rod 2 under the traction of the traction rope 41 and does not interfere with the air pipe 50 during the movement.

[0048] Referring to 2 and Figure 4 Initially, the breaking punch 4 is located at the lower part of the insertion rod 2 and is clamped by the air bag 5. When the insertion rod 2 is prevented from moving downward by a hard object in the soft foundation, a sharp object such as a needle tube can be inserted into the air passage 22 and pierce the air pipe 50, so that the gas in the air bag 5 and the air pipe 50 can be discharged outward through the needle tube. In this way, the clamping effect of the air bag 5 on the breaking punch 4 is released. Then the operator pulls the traction rope 41 outward, so that the breaking punch 4 is lifted in the insertion rod 2. When the breaking punch 4 is lifted to the top of the insertion rod 2, the traction rope 41 is released, and the breaking punch 4 freely falls under the action of gravity and hits the hard object that prevents the insertion rod 2 from moving downward. Through repeated impact of the breaking punch, the hard object is broken, so that the insertion rod 2 can continue to move downward with the drainage plate.

[0049] Figure 5 is Figure 1 the schematic enlarged view of part A in FIG. 2. Referring to Figure 5 After the breaking punch 4 finishes breaking the hard object, the traction rope 41 is pulled, so that the upper part of the breaking punch 4 is reset to the inside of the air bag 5. Then the air pipe 50 is supplied with air through the needle tube, so that the air bag 5 is inflated, thereby restoring the clamping effect of the air bag 5 on the breaking punch 4, and the lower end of the insertion rod 2 is in a closed state, which ensures that the mud in the soft foundation does not enter the insertion rod 2 during the downward movement of the insertion rod 2, thereby ensuring that the breaking punch 4 has enough displacement space for impact breaking of the hard object. The plurality of air passages 22 are arranged to ensure that the insertion rod 2 has air passages 22 exposed above the soft foundation before it moves to the set position, thereby facilitating the operator to control the air volume in the air pipe 50 and the air bag 5 through the air passages 22. Further, the air pipe 50 is made of rubber material, which can prevent the air pipe 50 from being damaged due to frequent insertion and removal of the needle tube. That is, after the needle tube is inserted and removed, the air pipe 50 can restore to its original state, thereby ensuring that the air volume in the air bag 5 can be controlled.

[0050] Referring toFigure 1 And Figure 2 The spacer plate 1 and the rotating disc 3 are further provided with a plug rod flushing device, which comprises a shell 61 and a plurality of water spraying heads 62 arranged in the shell 61. The shell 61 is in the shape of a closed bowl, that is, the inner diameter of the shell 61 gradually decreases from top to bottom. The water spraying heads 62 are arranged in the shell 61 at intervals and are arranged in staggered positions in the up-down direction. Meanwhile, the water spraying heads 62 protrude from the inner wall of the shell 61 by the same distance. The water spraying heads 62 are supplied with water through a water supply pipe 63. The outer wall of the shell 61 is provided with a drain pipe 64 for discharging the mud and water.

[0051] During the process of reversing the rotating disc 3 and pulling out the plug rod 2, the water spraying heads 62 are supplied with water through the water supply pipe 63, and the water spraying heads 62 spray water flow towards the plug rod 2. Since the distance between the end surface of the water spraying head 62 and the plug rod 2 gradually decreases from top to bottom, that is, the water spraying head 62 located at the upper part of the inner side of the shell 61 is far away from the plug rod 2, and the impact force of the water flow on the plug rod 2 is small, but the water flow is dispersed and the flushing area of the plug rod 2 is large. The water spraying head 62 located at the lower part of the inner side of the shell 61 is close to the plug rod 2, and the impact force of the water flow on the plug rod 2 is large, and the flushing area of the plug rod 2 is small. In this way, the water spraying head 62 located at the lower part of the inner side of the shell 61 realizes the preliminary and strong flushing of the plug rod 2, which can remove the clay adhered to the outer thread 21 of the plug rod 2. The water spraying head 62 located at the upper part of the inner side of the shell 61 realizes the large-area secondary flushing of the plug rod 2, which ensures that the clay cannot enter the threaded connection between the rotating disc 3 and the plug rod 2, causing jamming or even bolt damage, and ensures the reliable driving effect of the rotating disc 3 on the plug rod 2. After the plug rod 2 is flushed by the water spraying head 62, mud and water will be generated and fall into the shell 61, which will be discharged outward through the drain pipe 64, avoiding the secondary pollution of the mud and water to the plug rod 2.

[0052] The working process of the present application in use is as follows: under the support of the support 13, the rotating disc 3 is rotated, which can realize the rotation and downward movement of the plug rod 2 connected with the rotating disc 3 by threads and inserted into the soft foundation. During the downward movement of the plug rod 2, the long strip-shaped drainage plate is pressed into the soft foundation. When the drainage plate is pressed to the set position, the rotating disc 3 is reversed, which can realize the pulling out of the plug rod 2. There is a large frictional force between the drainage plate and the soft foundation, so the drainage plate is retained in the soft foundation, and the insertion and driving operation of the drainage plate is completed. The driving of the rotating disc 3 on the plug rod 2 is more labor-saving, effectively reduces the labor intensity of the operator, and improves the overall working efficiency.

[0053] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A device for processing soft foundation of hydraulic fill with artificial inserted drain plate, characterized in that, It includes a cushion plate (1) and a plug rod (2), the cushion plate (1) is anchored on soft foundation by anchor nail (11), the middle part of the cushion plate (1) is provided with a plug hole (12), the plug rod (2) passes through the plug hole (12) and presses the drainage plate into the set soft foundation depth; The cushion plate (1) is provided with a support (13), the top of the support (13) is provided with a rotating disc (3) rotating around the support (13), the plug rod (2) is arranged on the rotating disc (3), the plug rod (2) is connected with the rotating disc (3) through thread, the middle part of the rotating disc (3) is provided with a threaded hole (31) coaxial with the plug hole (12), the outer wall of the plug rod (2) is provided with an external thread (21), the plug rod (2) is rotatably arranged in the threaded hole (31) through the external thread (21). The plug rod (2) is hollow and tubular, the plug rod (2) is provided with a breaking punch (4), the breaking punch (4) moves up and down in the plug rod (2) under the traction of the traction rope (41), the lower part of the breaking punch (4) is conical, the lower part of the breaking punch (4) extends to the outside of the plug rod (2), the inner side of the lower end of the plug rod (2) is provided with an air bag (5), the air bag (5) clamps the upper part of the breaking punch (4), the plug rod (2) is provided with an air pipe (50), one end of the air pipe (50) is communicated with the air bag (5), the other end of the air pipe (50) is closed, the plug rod (2) is further provided with a plurality of air channels (22), one end of the air channel (22) is communicated with the outer wall of the plug rod (2), the other end of the air channel (22) points to the air pipe (50). The cushion plate (1) and the rotating disc (3) are provided with a plug rod flushing mechanism, the plug rod flushing mechanism includes a shell (61) and a plurality of water jet heads (62) arranged in the shell (61), the inner diameter of the shell (61) gradually decreases from top to bottom, the plug rod (2) passes through the shell (61), a plurality of water jet heads (62) are arranged on the inner wall of the shell (61) at intervals, the distance between the end face of the water jet head (62) and the inner wall of the shell (61) is the same.

2. The device according to claim 1, wherein One end of the traction rope (41) is connected with the top of the breaking punch (4), the other end of the traction rope (41) extends outward from the top of the plug rod (2).

3. The device according to claim 1, wherein The air pipe (50) does not interfere with the breaking punch (4), the maximum outer diameter of the breaking punch (4) is smaller than the minimum inner diameter of the plug rod (2).

4. The device according to claim 1, wherein The outer wall of the shell (61) is further provided with a water supply pipe (63) and a sewage pipe (64), the water supply pipe (63) supplies water to a plurality of water jet heads (62), the sewage pipe (64) is arranged at the lower part of the shell (61) and is used for discharging sewage containing mud.

5. The device according to claim 1, wherein The rotating disc (3) is provided with a plurality of holding areas (32), the holding areas (32) penetrate the rotating disc (3) and are close to the outer edge of the rotating disc (3). The bottom of the rotating disc (3) is provided with a ring-shaped sliding groove (33), the bottom of the support (13) is connected with the top of the cushion plate (1), and the top of the support (13) is adapted to slide in the sliding groove (33).

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