Intelligent grouting device and process for post-grouting of cast-in-place pile

Abstract

The invention discloses an intelligent grouting device and technology for post-grouting of a cast-in-place pile, and belongs to the technical field of construction grouting. Comprising a limiting frame, an auxiliary half frame is slidably connected to the surface of the limiting frame, a driving mechanism is arranged on one side of the auxiliary half frame, a rectangular hole is formed in the position, located at the lower end of the driving mechanism, of one side of the auxiliary half frame, an air compressor is fixedly connected to the other side of the auxiliary half frame, and a matching mechanism is arranged at the top end of the auxiliary half frame; through the arrangement of the driving mechanism, the matching mechanism, the auxiliary semi-frame body and the air compressor, when the device works, a certain degree of separation cracks can be generated in a hole wall through impact force, then cement paste can permeate into a soil layer like a tree root state, and the cement paste rises layer by layer to separate the cracks and throw the cement paste; and the cement paste and the soil body are fully mixed and permeated to form a concrete column or a reinforcing body with higher strength, so that the bonding strength of the pile body and the foundation is obviously enhanced, and the bearing capacity and the stability of the foundation are improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction grouting, and in particular to an intelligent grouting device and process for post-grouting of cast-in-place piles. Background Art

[0002] The routine of construction grouting is to inject cement slurry or other chemical slurry into the soil at the pile end and pile side through the grouting conduit preset in the pile body and the pile end and pile side grouting valves connected thereto within a certain period of time after the bored pile is formed (usually within 2 to 30 days after the pile is formed). The main purpose of this technology is to reinforce the soil at the pile end and pile side, including sediment and mud skin, so as to improve the bearing capacity of the single pile and reduce the settlement of the pile foundation. First, pour concrete, and after the grouting reaches the grouting volume or pressure required by the design, stabilize the pressure and maintain the pressure to ensure that the slurry fully penetrates into the soil, and then let it stand to form;

[0003] Currently, during the construction grouting process, the penetration of the construction grouting is not strong, resulting in relatively weak fixing ability, and conventional grouting may produce grouting blind areas, which will cause unnecessary risks. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent grouting device and process for post-grouting of cast-in-place piles, which solves the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent grouting device and process for post-grouting of cast-in-place piles, comprising a limiting frame, an auxiliary half-frame body is slidably connected to the surface of the limiting frame, a driving mechanism is arranged on one side of the auxiliary half-frame body, a rectangular hole is opened at the lower end of the driving mechanism on one side of the auxiliary half-frame body, an air compressor is fixedly connected to the other side of the auxiliary half-frame body, a matching mechanism is arranged on the top of the auxiliary half-frame body, a mixing foaming mechanism is fixedly connected to one side of the auxiliary half-frame body near the bottom of the rectangular hole, an input pipe is connected to the top of the mixing foaming mechanism through a thread, two sets of rising mechanisms are arranged oppositely on the inner ring of the limiting frame, one side of the rising mechanisms is fixedly connected to a first driving motor, and a gear block is arranged inside the groove on the surface of the limiting frame.

[0006] Furthermore, the driving mechanism includes a loading shell arranged on one side of the auxiliary half frame, the top end of the loading shell is fixedly connected to a second driving motor, the output end of the second driving motor is fixedly connected to a moving rod body, the end of the moving rod body is fixedly connected to a first rotating tooth, and the surface of the first rotating tooth is engaged with the internal tooth block of the groove on the surface of the limiting frame.

[0007] Furthermore, the mating mechanism includes a mating rod body arranged at the top end of the auxiliary half frame, a mating half frame body is arranged at the top end of the mating rod body, a sliding groove is opened on one side of the mating half frame, and a limiting block is also arranged inside the sliding groove to prevent the mating half frame from sliding out.

[0008] Furthermore, a directional cylinder is fixedly connected to the other side of the matching half frame, and the interior of the directional cylinder is slidably connected to the input pipeline.

[0009] Furthermore, the mixing and foaming mechanism includes a storage cavity fixedly connected to one side of the auxiliary half frame, the interior of the storage cavity is rotatably connected to a mixing rod, the end of the mixing rod is fixedly connected to a foaming block, the bottom end of the storage cavity is fixedly connected to a conical cavity, the interior of the conical cavity is also provided with liquid-passing holes, and the connection between the storage cavity and the conical cavity is connected to the output end of the air compressor.

[0010] Furthermore, the surface of the mixing rod is meshed with belt teeth, and the inside of the belt teeth is meshed with the moving rod body.

[0011] Furthermore, the lifting mechanism includes a U-shaped fixed carrier arranged in an opposing state on the inner ring of the limiting frame, both sides of the U-shaped fixed carrier are fixedly connected to the limiting carrier, the interior of the limiting carrier is rotatably connected to a rotating rod body, the surface of the rotating rod body is fixedly connected to two sets of auxiliary wheels, and one end of the rotating rod body is fixedly connected to the output end of the first drive motor.

[0012] Furthermore, a curved surface elevation rod is provided at a position near the top of the limiting frame and the U-shaped fixed carrier, and a second frame is fixedly connected to the top of the curved surface elevation rod.

[0013] Furthermore, a circular arc sliding groove is provided at the top end of the second frame, and the circular arc sliding groove is slidably connected to the limiting block.

[0014] A process of an intelligent grouting device for post-grouting of cast-in-place piles, and a method of using the device is as follows:

[0015] In the first step, personnel place the center of the limiting frame and the second frame on the outer surface of the cast-in-place pile at an inclined angle, and then wait for the device to be lowered to the bottom of the outer surface of the cast-in-place pile. Before the device is working, if the input pipeline is not long enough, the external pipeline is connected to the input pipeline. When the number of input pipelines is insufficient, one or more input pipelines are set to communicate with the storage cavity.

[0016] In the second step, cement slurry is injected into the other end of the input pipe to reinforce the bottom of the outer surface of the bored pile to strengthen the soil and improve the bearing capacity. The slurry overcomes the initial compressive stress on the principal stress surface of the soil, causing the soil to split and break. The slurry penetrates into the soil along the splitting gap to fill the gap and compact the soil on the side of the pile to promote soil consolidation, thereby improving the soil strength in the grouting area. When the material inside the input pipe enters the interior of the storage cavity, the first drive motor located on one of the ascending mechanisms starts to operate, and the device as a whole starts to climb on the outer surface of the bored pile. The output end of the first drive motor drives the rotating rod to start rotating, and when the rotating rod starts to work, it will drive the auxiliary wheel to start running. When the cement slurry enters the interior of the storage cavity, the air compressor does not work at this time. It should be noted that the slurry ratio of this grouting process, in the process of grouting after the bored pile, the water ratio is greater than the water ratio at the beginning, and the mud is inside the storage cavity at this time;

[0017] In the third step, the second driving motor on the driving mechanism starts to work. At this time, the second driving motor drives the moving rod body to start rotating, and then the moving rod body drives the first rotating gear to operate, so that the first rotating gear rotates and moves on the surface of the limiting frame and works in a circular motion. At this time, the moving rod body drives the mixing rod to move in the same direction through the rotation of the belt teeth. The cement slurry in the storage cavity is rotated through the foaming block at the bottom of the mixing rod, and the cement slurry is mixed with the introduced bubbles. The gas is evenly distributed in the cement slurry and forms tiny bubbles, which can fix the bubbles inside the concrete, so that after forming, a lightweight concrete with a porous structure is formed, and its stability is enhanced;

[0018] In the fourth step, the air compressor starts to work and sprays the processed cement slurry from the storage cavity to form a high-pressure jet flow, which effectively cuts and destroys the soil inside the cave wall with the material inside the storage cavity. At the same time, through the coordinated use of the moving rod and the limiting frame, the auxiliary half frame rotates on the surface of the limiting frame to form a circular motion. At the same time, the grouting material is more evenly distributed around the pile body, thereby enhancing the bonding strength between the pile body and the foundation, destroying the structure in the cave wall, allowing more slurry to enter the gap in the cave wall, providing a channel for the infiltration of the slurry, filling the gaps and cavities in the cave, and improving the density and bearing capacity of the foundation. The device is lifted as a whole through the upward operation of the auxiliary wheel, and rotates on the outer surface of the cast-in-place pile while rising. The cement slurry ejected from the storage cavity can drive the first rotating tooth to destroy and penetrate the inside of the cave wall layer by layer through the moving rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides an intelligent grouting device and process for post-grouting of a cast-in-place pile. By arranging a driving mechanism, a matching mechanism, an auxiliary half frame and an air compressor, the device can generate a certain degree of separation cracks inside the hole wall through impact force when the device is working, and then the cement slurry can penetrate into the soil layer like a tree root, and rise layer by layer to separate the cracks and inject cement slurry. The cement slurry is fully mixed and penetrated with the soil body, so that a high-strength concrete column or reinforcement body can be formed, thereby significantly enhancing the bonding strength between the pile body and the foundation, and improving the bearing capacity and stability of the foundation.

[0021] At the same time, by setting up the mixing and foaming mechanism and using it in conjunction with the air compressor, the device can pre-treat the cement slurry before the cement slurry is added. The stirring process helps to break large bubbles and promote the formation of small bubbles, thereby improving the uniformity and stability of lightweight concrete and making the strength of the later molding higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention;

[0023] Figure 2 This is a schematic diagram of a structure of a lifting mechanism of the present invention;

[0024] Figure 3 It is a schematic diagram of another group of ascending mechanism structures of the present invention;

[0025] Figure 4 It is a structural schematic diagram of another group of ascending mechanisms of the present invention from another viewing angle;

[0026] Figure 5 This is a schematic diagram of the schematic structure of the device of the present invention partially disassembled and installed;

[0027] Figure 6 Another structural schematic diagram of the present invention showing the partial disassembly and installation from another perspective;

[0028] Figure 7 It is a schematic diagram of the split structure of the driving mechanism, the matching mechanism and the mixing and foaming mechanism of the present invention;

[0029] Figure 8 It is a schematic diagram of the matching mechanism and the auxiliary half-frame flipping structure of the present invention;

[0030] Fig. 9 It is a schematic diagram of the connection relationship between the driving mechanism and the mixing and foaming mechanism of the present invention and a partially disassembled structure of the mixing and foaming mechanism.

[0031] In the figure: 1. limiting frame; 2. auxiliary half frame; 21. rectangular hole; 22. air compressor; 3. driving mechanism; 31. loading shell; 32. second driving motor; 33. moving rod body; 34. first rotating tooth; 4. matching mechanism; 41. matching rod body; 42. matching half frame; 5. mixing foaming mechanism; 51. storage cavity; 52. mixing rod; 53. foaming block; 54. conical cavity; 6. input pipeline; 7. rising mechanism; 71. U-shaped fixed carrier; 72. limiting carrier; 73. rotating rod body; 74. auxiliary wheel; 8. first driving motor; 9. directional cylinder; 10. belt teeth; 11. curved surface elevated pole; 12. second frame. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0034] Combination Figure 1-Figure 9 , an intelligent grouting device and process for post-grouting of cast-in-place piles, comprising a limiting frame 1, an auxiliary half-frame 2 is slidably connected to the surface of the limiting frame 1, a driving mechanism 3 is arranged on one side of the auxiliary half-frame 2, a rectangular hole 21 is opened on one side of the auxiliary half-frame 2 at the lower end of the driving mechanism 3, an air compressor 22 is fixedly connected to the other side of the auxiliary half-frame 2, a matching mechanism 4 is arranged on the top of the auxiliary half-frame 2, a mixing foaming mechanism 5 is fixedly connected to one side of the auxiliary half-frame 2 near the bottom of the rectangular hole 21, an input pipe 6 is connected to the top of the mixing foaming mechanism 5 by a thread, two sets of rising mechanisms 7 are oppositely arranged on the inner ring of the limiting frame 1, one side of the rising mechanisms 7 is fixedly connected to a first driving motor 8, and a tooth block is arranged inside the groove on the surface of the limiting frame 1.

[0035] When in use, the first drive motor 8 drives one of the lifting mechanisms 7 to operate, so that the entire device can be lifted. When the device and the pit it is matched with are too large, the first drive motor 8 can be installed on the other lifting mechanism 7 while the overall proportion of the device is relatively adjusted.

[0036] See also Figure 2-Figure 9The driving mechanism 3 includes a loading shell 31 arranged on one side of the auxiliary half frame 2, the top of the loading shell 31 is fixedly connected to a second driving motor 32, the output end of the second driving motor 32 is fixedly connected to a moving rod body 33, the end of the moving rod body 33 is fixedly connected to a first rotating tooth 34, and the surface of the first rotating tooth 34 is meshed with the internal tooth block of the groove on the surface of the limiting frame 1.

[0037] The second driving motor 32 works to drive the moving rod 33 to rotate, and the moving rod 33 drives the first rotating gear 34 and the belt gear 10 to operate.

[0038] The mating mechanism 4 includes a mating rod 41 arranged at the top end of the auxiliary half frame 2, a mating half frame 42 is arranged at the top end of the mating rod 41, a sliding groove is opened on one side of the mating half frame 42, and a limiting block is also arranged inside the sliding groove to prevent the mating half frame 42 from sliding out.

[0039] The other side of the matching half frame 42 is fixedly connected with a directional cylinder 9 , and the interior of the directional cylinder 9 is slidably connected to the input pipe 6 .

[0040] The mixing and foaming mechanism 5 includes a storage cavity 51 fixedly connected to one side of the auxiliary half frame 2, the interior of the storage cavity 51 is rotatably connected to a mixing rod 52, the end of the mixing rod 52 is fixedly connected to a foaming block 53, the bottom end of the storage cavity 51 is fixedly connected to a conical cavity 54, the interior of the conical cavity 54 is also provided with a liquid-passing hole, and the connection between the storage cavity 51 and the conical cavity 54 is connected to the output end of the air compressor 22.

[0041] The surface of the mixing rod 52 is meshed with belt teeth 10 , and the inside of the belt teeth 10 is meshed with the moving rod body 33 .

[0042] The belt teeth 10 drive the mixing rod 52 to rotate, and the mixing rod 52 drives the foaming block 53 to rotate in the cavity of the storage cavity 51. After the foaming block 53 inside the storage cavity 51 rotates for a certain period of time, the air compressor 22 delivers the mixed fluid inside.

[0043] The lifting mechanism 7 includes a U-shaped fixed carrier 71 arranged in an opposing state on the inner ring of the limiting frame 1, and both sides of the U-shaped fixed carrier 71 are fixedly connected to the limiting carrier 72, and the internal rotation of the limiting carrier 72 is connected to the rotating rod body 73, and the surface of the rotating rod body 73 is fixedly connected to two sets of auxiliary wheels 74, and one end of the rotating rod body 73 is fixedly connected to the output end of the first drive motor 8.

[0044] A curved elevated rod 11 is provided at the top of the limiting frame 1 near the U-shaped fixed carrier 71 , and a second frame 12 is fixedly connected to the top of the curved elevated rod 11 .

[0045] A circular arc sliding groove is formed at the top of the second frame 12, and the circular arc sliding groove is slidably connected to the limiting block.

[0046] The arc groove cooperates with the limiting block to prevent the auxiliary half frame 2 on the device from sliding out of the cooperating half frame 42 during operation. The directional cylinder 9 set on the cooperating half frame 42 limits the input pipe 6. The upper end of the storage cavity 51 on the device and the cooperating half frame 42 will provide two auxiliary points for the input pipe 6 to avoid unnecessary deviation of the input pipe 6 on the device during operation.

[0048] First, the personnel place the center of the limiting frame 1 and the second frame 12 on the outer surface of the bored pile and place them at an inclined angle, and then wait for the device to be lowered to the bottom of the outer surface of the bored pile as a whole. Before the device starts working, if the input pipe 6 is not long enough, the external pipe is connected to the input pipe 6. When the number of input pipes 6 is insufficient, one or more input pipes 6 are connected to the storage cavity 51. Then, cement slurry is injected into the other end of the input pipe 6 to reinforce the bottom of the outer surface of the bored pile. When the material inside the input pipe 6 enters the storage cavity 51, the first drive motor located on one of the lifting mechanisms 7 is 8 starts to operate, and the device as a whole starts to climb on the outer surface of the bored pile. The output end of the first drive motor 8 drives the rotating rod body 73 to start rotating. When the rotating rod body 73 starts to work, it will drive the auxiliary wheel 74 to start running. When the cement slurry enters the storage cavity 51, the air compressor 22 does not work at this time. It should be noted that the mud ratio of this pouring process, in the process of grouting after the bored pile, the water ratio is greater than the water ratio later. At this time, the mud is inside the storage cavity 51. Subsequently, the second drive motor 32 on the drive mechanism 3 starts to work. At this time, the second drive motor 32 drives the moving rod body 33 to start rotating, and then the operation The moving rod body 33 drives the first rotating tooth 34 to operate, so that the first rotating tooth 34 rotates and moves on the surface of the limiting frame 1, and works in a circular motion. At this time, the moving rod body 33 drives the mixing rod 52 to move in the same direction through the rotation of the belt teeth 10. The cement slurry in the storage cavity 51 rotates through the foaming block 53 at the bottom end of the mixing rod 52, and the cement slurry is mixed with the introduced bubbles to form a lightweight concrete with a porous structure, thereby enhancing its stability. Subsequently, the air compressor 22 starts to work, and the processed cement slurry is ejected from the storage cavity 51 to form a high-pressure jet flow, which effectively cuts and seals the material inside the storage cavity 51 inside the hole wall. The soil is destroyed. At the same time, through the coordinated use of the moving rod body 33 and the limiting frame 1, the auxiliary half frame body 2 is rotated on the surface of the limiting frame 1 to form a circular motion. At the same time, the grouting material cement slurry is more evenly distributed around the pile body, so that more slurry can enter the gaps in the cave wall, provide a channel for the slurry to penetrate, fill the gaps and voids in the cave, and improve the density and bearing capacity of the foundation. Through the upward operation of the auxiliary wheel 74, the device is lifted as a whole, and while rising, it rotates on the outer surface of the bored pile. The cement slurry ejected from the storage cavity 51 can be driven by the moving rod body 33 to drive the first rotating tooth 34 to destroy and penetrate the inside of the cave wall layer by layer.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent grouting device for post-grouting of cast-in-place piles, comprising a limiting frame (1), characterized in that: The surface of the limiting frame (1) is slidably connected to an auxiliary half frame (2), a driving mechanism (3) is arranged on one side of the auxiliary half frame (2), a rectangular hole (21) is opened on one side of the auxiliary half frame (2) at the lower end of the driving mechanism (3), an air compressor (22) is fixedly connected to the other side of the auxiliary half frame (2), a matching mechanism (4) is arranged at the top of the auxiliary half frame (2), a mixing and foaming mechanism (5) is fixedly connected to one side of the auxiliary half frame (2) near the bottom of the rectangular hole (21), the top of the mixing and foaming mechanism (5) is connected to an input pipe (6) through a thread, two groups of lifting mechanisms (7) are arranged opposite to each other on the inner ring of the limiting frame (1), one side of the lifting mechanisms (7) is fixedly connected to a first driving motor (8), and a tooth block is arranged inside the groove on the surface of the limiting frame (1).

2. The intelligent grouting device for post-grouting of cast-in-place piles according to claim 1, characterized in that: The driving mechanism (3) comprises a loading shell (31) arranged on one side of the auxiliary half frame (2); the top end of the loading shell (31) is fixedly connected to a second driving motor (32); the output end of the second driving motor (32) is fixedly connected to a moving rod body (33); the end of the moving rod body (33) is fixedly connected to a first rotating tooth (34); the surface of the first rotating tooth (34) is meshed with a tooth block inside a groove on the surface of the limiting frame (1).

3. The intelligent grouting device for post-grouting of cast-in-place piles according to claim 1, characterized in that: The mating mechanism (4) comprises a mating rod (41) arranged at the top end of the auxiliary half frame (2); a mating half frame (42) is arranged at the top end of the mating rod (41); a sliding groove is provided on one side of the mating half frame (42); and a limiting block is also provided inside the sliding groove to prevent the mating half frame (42) from sliding out.

4. The intelligent grouting device for post-grouting of cast-in-place piles according to claim 3, characterized in that: The other side of the matching half frame (42) is fixedly connected with a directional cylinder (9), and the interior of the directional cylinder (9) is slidably connected to the input pipe (6).

5. The intelligent grouting device for post-grouting of cast-in-place piles according to claim 1, characterized in that: The mixing and foaming mechanism (5) comprises a storage cavity (51) fixedly connected to one side of the auxiliary half frame (2); a mixing rod (52) is rotatably connected inside the storage cavity (51); a foaming block (53) is fixedly connected to the end of the mixing rod (52); a conical cavity (54) is fixedly connected to the bottom end of the storage cavity (51); a liquid-passing hole is also provided inside the conical cavity (54); and a connection between the storage cavity (51) and the conical cavity (54) is connected to the output end of the air compressor (22).

6. The intelligent grouting device for post-grouting of cast-in-place piles according to claim 5, characterized in that: The surface of the mixing rod (52) is meshed with belt teeth (10), and the interior of the belt teeth (10) is meshed with the moving rod body (33).

7. The intelligent grouting device for post-grouting of cast-in-place piles according to claim 1, characterized in that: The lifting mechanism (7) comprises a U-shaped fixed carrier (71) arranged on the inner ring of the limiting frame (1) in an opposing state, the two sides of the U-shaped fixed carrier (71) are fixedly connected to the limiting carrier (72), the interior of the limiting carrier (72) is rotatably connected to a rotating rod body (73), the surface of the rotating rod body (73) is fixedly connected to two sets of auxiliary wheels (74), and one end of the rotating rod body (73) is fixedly connected to the output end of the first drive motor (8).

8. The intelligent grouting device for post-grouting of cast-in-place piles according to claim 7, characterized in that: A curved surface elevation rod (11) is provided at the top of the limiting frame (1) near the U-shaped fixed carrier (71), and a second frame (12) is fixedly connected to the top of the curved surface elevation rod (11).

9. The intelligent grouting device for post-grouting of cast-in-place piles according to claim 7, characterized in that: A circular arc sliding groove is provided at the top end of the second frame (12), and the circular arc sliding groove is slidably connected to the limiting block.

10. A process for using the intelligent grouting device for post-grouting of a bored pile according to any one of claims 1 to 9, characterized in that: The following steps are involved: In the first step, personnel place the center of the limiting frame (1) and the second frame (12) on the outer surface of the cast-in-place pile and place them at an inclined angle, and then wait for the device to be lowered to the bottom of the outer surface of the cast-in-place pile. Before the device starts working, if the input pipe (6) is not long enough, the external pipe is connected to the input pipe (6). If the number of input pipes (6) is insufficient, one or more input pipes (6) are connected to the storage chamber (51); In the second step, cement slurry is injected into the other end of the input pipe (6) to reinforce the outer surface bottom of the cast-in-place pile to strengthen the soil and improve the bearing capacity. The slurry overcomes the initial compressive stress on the principal stress surface of the soil, causing the soil to split and break. The slurry penetrates into the soil along the splitting gap to fill the gap and compacts the soil on the side of the pile to promote soil consolidation, thereby improving the soil strength in the grouting area. When the material inside the input pipe (6) enters the storage cavity (51), the first drive motor (8) located on one of the lifting mechanisms (7) starts to operate. The device as a whole starts to climb on the outer surface of the bored pile, and the output end of the first drive motor (8) drives the rotating rod (73) to start rotating. When the rotating rod (73) starts to work, it will drive the auxiliary wheel (74) to start running. When the cement slurry enters the storage cavity (51), the air compressor (22) does not work at this time. It should be noted that the slurry ratio of this pouring process, in the process of grouting after the bored pile, the water ratio is greater at the beginning than the water ratio later, and the slurry is inside the storage cavity (51); In the third step, the second driving motor (32) on the driving mechanism (3) starts to work. At this time, the second driving motor (32) drives the moving rod body (33) to start rotating. Then, the moving rod body (33) drives the first rotating tooth (34) to operate, so that the first rotating tooth (34) rotates and moves on the surface of the limiting frame (1) and works in a circular motion. At this time, the moving rod body (33) drives the mixing rod (52) to move in the same direction through the rotation of the belt teeth (10). The cement slurry in the storage cavity (51) rotates through the foaming block (53) at the bottom end of the mixing rod (52), and the cement slurry is mixed with the introduced bubbles. The gas is evenly distributed in the cement slurry to form tiny bubbles, which can fix the bubbles inside the concrete, so that after forming, a lightweight concrete with a porous structure is formed, thereby enhancing its stability. In the fourth step, the air compressor (22) starts to work, and the processed cement slurry is ejected from the storage cavity (51) to form a high-pressure jet flow, which effectively cuts and destroys the soil in the storage cavity (51) inside the cave wall. At the same time, through the coordinated use of the moving rod (33) and the limiting frame (1), the auxiliary half frame (2) rotates on the surface of the limiting frame (1) to form a circular motion. At the same time, the grouting material (cement slurry) is more evenly distributed around the pile body, thereby enhancing the bonding strength between the pile body and the foundation, destroying the structure in the cave wall, allowing more slurry to enter the gaps in the cave wall, providing a channel for the penetration of the slurry, filling the gaps and cavities in the cave, and improving the density and bearing capacity of the foundation. The auxiliary wheel (74) is operated upward to lift the entire device, and while rising, it rotates on the outer surface of the cast-in-place pile. The cement slurry ejected from the storage cavity (51) can drive the first rotating tooth (34) to work through the moving rod (33) to destroy and penetrate the inside of the cave wall layer by layer.

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