Pile-net composite foundation reinforcing structure and treatment method thereof

Abstract

The pile-net composite foundation reinforcing structure comprises a positioning cylinder, a progressive cylinder, an inserting pile, a plugging plate, an embedding plate and an inserting plate, the plugging plate and the embedding plate are located in an embedding groove, a plugging groove is formed in the plugging plate, and a connecting plate is rotationally connected between the top end of the end of the embedding groove and the top end of the plugging plate. According to the construction method, the insertion pile is driven to be inserted into the foundation firstly, the insertion pile is rapidly inserted downwards by a large distance, the progressive cylinder is slowly and downwards inserted into the foundation by a small distance, meanwhile, rotation is conducted, the foundation on the periphery of the insertion pile is extruded, and the foundation on the periphery of the insertion pile is reinforced; according to the pile net composite foundation reinforcing structure and the construction method thereof, the compactness of a foundation soil body can be effectively improved, the bearing capacity and stability of a foundation are improved, settlement and deformation of the foundation are reduced, and the pile net composite foundation reinforcing structure and the construction method thereof have high adaptability to various geological conditions and are particularly suitable for foundation reinforcing under unfavorable geological conditions such as soft soil layers and loose sand layers.

Description

Technical Field

[0001] This invention relates to the field of foundation pile treatment structure technology, specifically to a pile-net composite foundation reinforcement structure and its treatment method. Background Technology

[0002] In civil engineering construction, the stability of the foundation is crucial. Many engineering sites have complex geological conditions, such as the presence of weak soil layers or loose sand layers, resulting in insufficient foundation bearing capacity and making them prone to settlement and deformation, which seriously affects the safety and service life of buildings. Therefore, foundation reinforcement is necessary.

[0003] Pile foundations are a commonly used technique in foundation treatment, especially effective in treating soft soil layers and improving the bearing capacity of the foundation. There are various types of piles, including steel pipe piles, I-beam piles, H-beam piles, and reinforced concrete piles.

[0004] Existing steel pipe piles are driven deep into the foundation by pile drivers. The geology around the steel pipe piles is complex, and the compaction and stability of the soil cannot be improved, which can easily cause the foundation to settle and deform.

[0005] Therefore, we propose a pile-net composite foundation reinforcement structure and its treatment method. Summary of the Invention

[0006] The purpose of this invention is to provide a pile-net composite foundation reinforcement structure and its treatment method to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides a pile-net composite foundation reinforcement structure, comprising a positioning cylinder, a progressive cylinder, and an insertion pile arranged sequentially from the outside to the inside. The positioning cylinder is embedded in the foundation, the progressive cylinder is threadedly connected to the positioning cylinder, and the insertion pile is threadedly connected to the progressive cylinder. The pitch of the thread on the outer surface of the progressive cylinder is smaller than the pitch of the thread on the outer surface of the insertion pile.

[0008] The advancing cylinder has an embedding groove, and a sealing plate is inserted into the embedding groove. The sealing plate has a sealing groove, and an embedding plate for insertion into the foundation is rotatably connected in the embedding groove. A connecting plate is rotatably connected between the top of the embedding plate and the top of the sealing plate. A plugging component is rotatably connected in the sealing groove, and a through groove is correspondingly provided on the embedding plate to slide with the plugging component.

[0009] Furthermore, the lower end of the advancing cylinder is provided with an annular hammer for compacting the soil, and the inserted pile passes through the annular hammer.

[0010] Furthermore, the end of the advancing cylinder is rotatably connected to a rotating ring for easy clamping by the pile driver, and the top of the inserted pile is connected to an extension pile. Both the advancing cylinder and the extension pile are clamped and inserted by the pile driver.

[0011] Furthermore, the bottom of the sealing plate is provided with inclined pressure plates.

[0012] Furthermore, an elastic rod is fixedly connected to the bottom of the embedding groove, and the elastic rod is in a limiting fit with the bottom outer wall of the embedding plate.

[0013] Furthermore, the plug-in assembly includes a plug plate that is plugged into the through slot, and a U-shaped rod that is rotatably connected to the top of the sealing slot and rotatably connected to the plug plate.

[0014] Furthermore, the top of the extension pile and the top of the insertion pile are provided with a first pair of interfaces, and the bottom of the extension pile is provided with a second pair of interfaces corresponding to the first pair of interfaces. A plug-in plate is inserted between the first pair of interfaces and the second pair of interfaces.

[0015] Furthermore, the two ends of the plug plate are threaded with a first threaded rod and a second threaded rod that are inclinedly distributed. The end of the first threaded rod passes into the first interface, and the end of the second threaded rod abuts against the first threaded rod.

[0016] Furthermore, the top edge of the positioning cylinder is provided with an annular protrusion, and a plurality of fixing holes are provided on the annular protrusion. The plurality of fixing holes are arranged circumferentially, and an anchor rod is inserted into each of the fixing holes.

[0017] A method for reinforcing a pile-net composite foundation, based on the aforementioned pile-net composite foundation reinforcement structure, specifically includes the following steps;

[0018] S1. Laying out the lines: Excavate with an excavator, insert the positioning cylinder into the foundation, and hammer it to make the bottom of the positioning cylinder flush with the top surface of the foundation. Then, fix the position of the positioning cylinder by inserting the anchor rod into the fixing hole at the edge of the annular convex edge. The central axis of the positioning cylinder coincides with the design central axis of the pile position.

[0019] S2. Insert the cylinder downwards by clamping the rotating ring with the pile driver and vertically lifting the advance cylinder so that the threaded advance cylinder is inserted into the positioning cylinder, and then inserted into the top of the pile by clamping the pile driver.

[0020] The pile driver, which holds the top of the inserted pile, moves vertically downwards, causing the inserted pile to be inserted vertically into the foundation without rotating. The inserted pile is inserted downwards quickly and over a long distance.

[0021] At the same time, under the action of the thread, the advancing cylinder slowly inserts into the foundation in a small distance within the fixed positioning cylinder 1. The advancing cylinder rotates and squeezes the foundation around the inserted pile, thus reinforcing the foundation around the inserted pile.

[0022] S3. Add an extension pile, install the extension pile at the end of the insertion pile, and use a pile driver to clamp the top of the extension pile. The pile driver drives the extension pile to move vertically downwards without rotating, thereby driving the insertion pile at the bottom of the extension pile to continue to be inserted into the foundation without rotating.

[0023] When the annular hammer reaches the designed depth, the height of the top of the extended pile is lower than the height of the bottom of the embedded plate.

[0024] S4. Pour concrete into the positioning cylinder. The concrete passes through the middle of the positioning cylinder and impacts the pressure plate, causing the sealing plate to move down, thereby driving the embedded plate to rotate and press against the foundation. Under the pressure of the concrete, the insert plate is inserted into the foundation.

[0025] S5. Concrete enters and fills the channel formed by the ring hammer head tightly;

[0026] S6. Perform steps S1 to S5 on other pile locations at the foundation treatment site to complete the pile-net composite foundation reinforcement.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] By first inserting the pile into the foundation, the pile is quickly and deeply inserted into the ground, while the advancing tube is slowly and deeply inserted into the foundation while rotating, thus compressing the foundation around the pile and reinforcing it. Through the rapid insertion of the pile and the further compression of the advancing tube, the density of the foundation soil can be effectively increased, improving the bearing capacity and stability of the foundation, and reducing the settlement and deformation of the foundation. The pile-net composite foundation reinforcement structure and its construction method of this application have strong adaptability to various geological conditions, and are especially suitable for foundation reinforcement under adverse geological conditions such as soft soil layers and loose sand layers.

[0029] Furthermore, by pouring concrete into the positioning cylinder, the concrete progresses through the middle of the positioning cylinder and impacts the pressure plate, causing the sealing plate to move downwards. This causes the embedded plate to rotate and press against the foundation. Under the pressure of the concrete, the insert plate is inserted into the foundation, increasing the stability of the foundation. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the piling machine of the present invention clamping and inserting the pile into the foundation;

[0031] Figure 2 This is a schematic diagram of the cooperation structure between the pile driver and the inserted pile of the present invention;

[0032] Figure 3 This is a schematic diagram of the cooperation structure between the inserted pile and the extension pile of the present invention;

[0033] Figure 4This is a schematic diagram showing the disassembled structure of the insertion pile and the extension pile of the present invention;

[0034] Figure 5 This is a cross-sectional structural diagram of the positioning cylinder of the present invention;

[0035] Figure 6 This is a schematic cross-sectional view of the progressive cylinder and annular hammerhead of the present invention.

[0036] Figure 7 This is a schematic diagram showing the disassembled structure of the positioning cylinder, the advancing cylinder, and the insertion pile of the present invention;

[0037] Figure 8 This is a schematic diagram of the insertion structure between the top of the insertion pile and the insertion plate of the present invention;

[0038] Figure 9 This is a cross-sectional structural diagram of the plug-in plate of the present invention;

[0039] Figure 10 This is a schematic diagram showing the disassembled structure of the first threaded rod, the second threaded rod, the plug-in plate, and the first mating buckle of the present invention;

[0040] Figure 11 This is a schematic diagram of the cooperative structure of the advancing cylinder, the sealing plate, and the embedding plate of the present invention;

[0041] Figure 12 This is a schematic diagram showing the sealing plate and the embedding plate detaching from the embedding groove according to the present invention;

[0042] Figure 13 This is a cross-sectional schematic diagram of the mating of the sealing plate and the embedding plate of the present invention;

[0043] Figure 14 This is a schematic diagram showing the disassembled structure of the sealing plate and the embedding plate of the present invention;

[0044] Figure 15 This is a schematic diagram showing the coordinated movement of the embedded plate, connecting plate, sealing plate, and rotating shaft of the present invention.

[0045] In the diagram: 1. Positioning cylinder; 2. Progressing cylinder; 3. Insertion pile; 4. Embedding groove; 5. Sealing plate; 6. Sealing groove; 7. Embedding plate; 8. Connecting plate; 9. Inserting plate; 10. Annular hammer; 11. Rotating ring; 12. Extension pile; 13. Pressure plate; 14. Elastic rod; 15. Through groove; 16. U-shaped rod; 17. First pair of interfaces; 18. Second pair of interfaces; 19. Inserting plate; 20. First threaded rod; 21. Second threaded rod; 22. Rotating shaft; 23. Annular flange. Detailed Implementation

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0047] Please see Figures 1-15 The present invention provides a pile-net composite foundation reinforcement structure, including a positioning cylinder 1, a progressive cylinder 2 and an insertion pile 3 arranged sequentially from the outside to the inside. The positioning cylinder 1 is embedded in the foundation. The progressive cylinder 2 is threadedly connected to the positioning cylinder 1. The insertion pile 3 is threadedly connected to the progressive cylinder 2. The pitch of the thread on the outer surface of the progressive cylinder 2 is smaller than the pitch of the thread on the outer surface of the insertion pile 3.

[0048] The advancing cylinder 2 has an embedding groove 4, and a sealing plate 5 is inserted into the embedding groove 4. The sealing plate 5 has a sealing groove 6. An embedding plate 7 for insertion into the foundation is rotatably connected in the embedding groove 4. A connecting plate 8 is rotatably connected between the top of the embedding plate 7 and the top of the sealing plate 5. A plug-in assembly is rotatably connected to the sealing groove 6. A through groove 15 corresponding to the embedding plate 7 is provided for sliding cooperation with the plug-in assembly.

[0049] A method for reinforcing a pile-net composite foundation, based on the aforementioned pile-net composite foundation reinforcement structure, specifically includes the following steps;

[0050] S1. Laying out the lines, measuring and laying out the lines, ensuring that the centerline of the excavation site coincides with the design centerline of the pile location, and excavating on the foundation using an excavator to achieve an excavation depth consistent with the height of the positioning cylinder 1.

[0051] After the excavation is completed, the positioning cylinder 1 is placed into the excavation site by a crane. At this time, the top of the positioning cylinder 1 is flush with the top surface of the foundation. Then, the anchor rod is inserted into the foundation through the fixing hole on the annular flange 23 to restrict the positioning cylinder 1 and prevent the positioning cylinder 1 from rotating.

[0052] The top edge of the positioning cylinder 1 is provided with an annular protrusion 23, and a number of fixing holes are provided on the annular protrusion 23. The fixing holes are arranged circumferentially, and an anchor rod is inserted into each fixing hole.

[0053] S2. Insert the rotating ring 11 by clamping the clamping part at the bottom of the pile driver. The hammering structure of the pile driver is located on the side of the inserted pile 3. The clamping part at the bottom of the hammering structure of the pile driver is set horizontally to clamp the rotating ring 11. The advancing cylinder 2 is lifted vertically by the vertically rising clamping part, and then the advancing cylinder 2 is slowly lowered so that the bottom of the advancing cylinder 2 is connected to the top of the positioning cylinder 1. The advancing cylinder 2 and the positioning cylinder 1 are threaded together.

[0054] The clamping parts of the pile driver are loosened so that the clamping parts hold the inserted pile 3. The inserted pile 3 is vertically lifted so that it is inserted into the top of the advancing cylinder 2. The annular hammer 10 enters the interior of the advancing cylinder 2 (the size of the annular hammer 10 is slightly smaller than the diameter of the inserted pile 3). The inserted pile 3 and the advancing cylinder 2 are threaded together.

[0055] The pile driver clamps the top of the inserted pile 3 and drives the inserted pile 3 to be inserted into the foundation along the advancing cylinder 2. The inserted pile 3 is inserted downwards quickly and over a long distance. During this process, the inserted pile 3 only moves downwards and does not rotate. It is worth noting that the hammering structure and the central axis of the inserted pile 3 do not coincide.

[0056] Simultaneously, the vertically downward-moving insertion pile 3, in conjunction with the fixed positioning cylinder 1, the threaded engagement between the positioning cylinder 1 and the outer wall of the advancing cylinder 2, and the threaded engagement between the insertion pile 3 and the inner wall of the advancing cylinder 2, and the thread pitch of the outer surface of the advancing cylinder 2 being smaller than the thread pitch of the outer surface of the insertion pile 3, causes the advancing cylinder 2 to rotate and move downward along the positioning cylinder 1. As the advancing cylinder 2 slowly and in small distances inserts itself into the foundation, it rotates, and the advancing cylinder 2 compresses the foundation around the insertion pile 3, reinforcing the foundation around the insertion pile 3. Through the rapid insertion of the insertion pile 3 and the further compression of the advancing cylinder 2, the density of the foundation soil can be effectively increased, the bearing capacity and stability of the foundation can be improved, and the settlement and deformation of the foundation can be reduced.

[0057] S3. Add an extension pile 12. When the top of the insertion pile 3 descends to a position close to the top of the advancing cylinder 2, the clamping device releases its grip on the top of the insertion pile 3.

[0058] Then, the extension pile 12 is installed at the end of the insertion pile 3, so that the extension pile 12 and the end of the insertion pile 3 are fixedly connected. Then, the top end of the extension pile 12 is clamped by the clamping device of the pile driver, and the extension pile 12 and the insertion pile 3 continue to be inserted into the foundation along the advancement cylinder 2 without rotation, until the annular hammer 10 reaches the design depth. At this time, the extension pile 12 is completely inserted into the positioning cylinder 1, and the top height of the extension pile 12 is lower than the bottom height of the embedded plate 7 (so that when the concrete enters the positioning cylinder 1 later, it can impact the embedded plate 7 without being interfered by the position of the top end of the extension pile 12).

[0059] S4. Concrete is poured into the positioning cylinder 1. The concrete passes through the middle of the positioning cylinder 1 and enters the middle of the cylinder 2. The concrete impacts the pressure plate 13. The inclined pressure plate 13 helps to hold the concrete. Under the impact of the concrete, the sealing plate 5 moves vertically downward. The top of the vertically moving sealing plate 5 pulls the connecting plate 8. The connecting plate 8 rotates, thereby driving the embedded plate 7 to rotate around the pivot 22. The bottom of the embedded plate 7 rotates outward in a circular motion, so that the embedded plate 7 is inserted into the foundation at an incline. Under the pressure of the concrete, the insert plate 9 moves relative to the through groove 15 on the embedded plate 7. The insert plate 9 is further inserted into the foundation, increasing the stability of the foundation.

[0060] S5. Concrete enters and fills the channel formed by the annular hammerhead 10 densely.

[0061] S6. Perform steps S1 to S5 on other pile locations at the foundation treatment site to complete the pile-net composite foundation reinforcement. The pile-net composite foundation reinforcement structure and its construction method of this application have strong adaptability to various geological conditions, and are especially suitable for foundation reinforcement under adverse geological conditions such as soft soil layers and loose sand layers.

[0062] The inserted pile 3, the advancing cylinder 2, the positioning cylinder 1 (similar to the form of a steel casing), as well as the extension pile 12, the pressure plate 13, the sealing plate 5, the embedded plate 7, the connecting plate 8, and the insert plate 9 in this application are all steel structures.

[0063] The pitch of the outer surface of the advancing cylinder 2 is smaller than the pitch of the outer surface of the inserted pile 3. By setting the pitch, the inserted pile 3 moves downward quickly (the inserted pile 3 does not rotate), while the advancing cylinder 2 moves downward slowly. During the process of the advancing cylinder 2 rotating, the inserted pile 3 is inserted into the foundation first, which will squeeze the foundation stratum around the inserted pile 3. Then, the advancing cylinder 2, which moves along the inserted pile 3, further squeezes the foundation stratum around the inserted pile 3, increasing the stability of the foundation.

[0064] The lower end of the advancing cylinder 2 is equipped with an annular hammer head 10 for compacting the soil. The inserted pile 3 passes through the annular hammer head 10. As the advancing cylinder 2 rotates, it drives the annular hammer head 10 to rotate as well. The slowly rotating annular hammer head 10 helps the large-diameter advancing cylinder 2 to penetrate deep into the foundation.

[0065] The end of the advancing cylinder 2 is rotatably connected to a rotating ring 11 for easy clamping by the pile driver. The top of the insertion pile 3 is connected to an extension pile 12. Both the advancing cylinder 2 and the extension pile 12 are clamped and inserted by the pile driver. When the top of the insertion pile 3 moves close to the height of the top opening of the positioning cylinder 1, the extension pile 12 is connected to the insertion pile 3, and the top of the extension pile 12 is clamped by the pile driver, so that the insertion pile 3 and the extension pile 12 continue to be inserted into the depth of the foundation, while the advancing cylinder 2 continues to move slowly downward and rotate.

[0066] The extension pile 12 has a threaded structure on its surface that is consistent with the surface of the insertion pile 3, so that the extension pile 12 is threadedly connected to the inner wall of the advancing cylinder 2.

[0067] Explanation of the connection between extension pile 12 and insertion pile 3:

[0068] The top of the extension pile 12 and the top of the insertion pile 3 are provided with a first pair of interfaces 17, and the bottom of the extension pile 12 is provided with a second pair of interfaces 18 corresponding to the first pair of interfaces 17. A plug-in plate 19 is inserted between the first pair of interfaces 17 and the second pair of interfaces 18 to connect the bottom of the extension pile 12 and the top of the insertion pile 3. At this time, the first pair of interfaces 17 and the second pair of interfaces 18 are connected and correspond to each other.

[0069] The two ends of the plug plate 19 are threadedly connected to a first threaded rod 20 and a second threaded rod 21 that are inclinedly distributed. The end of the first threaded rod 20 is inserted into the first interface 17, and the end of the second threaded rod 21 presses against the first threaded rod 20.

[0070] First, screw the second threaded rod 21 into the plug plate 19, so that the bottom end of the second threaded rod 21 does not protrude out of the plug plate 19, and the top of the inclined second threaded rod 21 is lower than the top surface of the plug plate 19.

[0071] Then insert the plug plate 19 into the first pair of interfaces 17 and the second pair of interfaces 18, and rotate the first threaded rod 20 so that the first threaded rod 20 passes through the plug plate 19 and is plugged and fixed into the reserved hole in the insertion post 3;

[0072] Finally, rotate the second threaded rod 21 so that it passes through the plug plate 19. The inclination of the second threaded rod 21 presses against the first threaded rod 20, ensuring the stable insertion of the plug plate 19, thereby making the connection between the insertion pile 3 and the extension pile 12 secure. Multiple sets of the first threaded rod 20 and the second threaded rod 21 in this application can be provided.

[0073] An elastic rod 14 is fixedly connected to the bottom of the embedded groove 4. The elastic rod 14 is limited and matched with the bottom outer wall of the embedded plate 7. Due to the setting of the elastic rod 14, during the process of the advancing cylinder 2 moving down and rotating, the embedded plate 7 remains stationary relative to the advancing cylinder 2. During the process of the advancing cylinder 2 moving down, the elastic rod 14 does not contact the hole wall (the hole wall of the hole formed during the insertion of the annular hammer 10 into the foundation).

[0074] The bottom of the sealing plate 5 is provided with inclined pressure plates 13. When the insertion pile 3 is inserted deep into the foundation, the extension pile 12 is located at the top and the bottom of the advancement cylinder 2, and the top of the advancement cylinder 2 is located at the bottom of the positioning cylinder 1, the concrete is poured from top to bottom and impacts the inclined pressure plates 13, causing the pressure plates 13 and the sealing plate 5 to move downward.

[0075] like Figure 15As shown, the downward-moving sealing plate 5, on the one hand, causes the embedded plate 7 to rotate via the connecting plate 8 (the embedded plate 7 rotates around the pivot 22; it is worth noting that the pivot 22 has an arc-shaped section in the middle and straight sections at both ends, i.e., the arc-shaped section of the pivot 22 is fixed inside the embedded plate 7, and the straight sections at both ends of the pivot 22 pass through the embedded plate 7 and are rotatably connected to the advancing cylinder 2). The bottom of the embedded plate 7 overcomes the elasticity of the elastic rod 14, the elastic rod 14 bends, the embedded plate 7 rotates out of the embedded groove 4, and the bottom of the embedded plate 7 is inserted into the foundation. On the other hand, the plug-in assembly includes a through-hole... The slot 15 is inserted into the insert plate 9. The top of the sealing slot 6 is rotatably connected to the U-shaped rod 16, which is rotatably connected to the insert plate 9. The embedded plate 7 has a through slot 15 that is slidably engaged with the insert plate 9 (the slot size of the through slot 15 near the sealing plate 5 is larger than the slot size away from the sealing plate 5). When the sealing plate 5 descends, the top of the U-shaped rod 16 descends synchronously, and the U-shaped rod 16 rotates, so that the insert plate 9 slides along the through slot 15 relative to the embedded plate 7, so that the insert plate 9 is inserted into the foundation, further ensuring a stable connection between the advancing cylinder 2 and the foundation.

[0076] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0077] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pile-net composite foundation reinforcement structure, characterized in that: It includes a positioning cylinder (1), a progressive cylinder (2) and an insertion pile (3) arranged sequentially from the outside to the inside. The positioning cylinder (1) is buried in the foundation. The progressive cylinder (2) is threadedly connected to the positioning cylinder (1). The insertion pile (3) is threadedly connected to the progressive cylinder (2). The pitch of the thread on the outer surface of the progressive cylinder (2) is smaller than the pitch of the thread on the outer surface of the insertion pile (3). The advancing cylinder (2) is provided with an embedding groove (4), and a sealing plate (5) is inserted into the embedding groove (4). A sealing groove (6) is provided on the sealing plate (5). An embedding plate (7) for insertion into the foundation is rotatably connected in the embedding groove (4). A connecting plate (8) is rotatably connected between the top end of the embedding plate (7) and the top end of the sealing plate (5). A plug-in component is rotatably connected to the sealing groove (6). A through groove (15) is provided on the embedding plate (7) to slide with the plug-in component.

2. The pile-mesh composite foundation reinforcement structure according to claim 1, characterized in that: The lower end of the advancing cylinder (2) is provided with an annular hammer (10) for compacting the soil, and the inserted pile (3) passes through the annular hammer (10).

3. The pile-mesh composite foundation reinforcement structure according to claim 2, characterized in that: The end of the advancing cylinder (2) is rotatably connected to a rotating ring (11) for easy clamping by the pile driver, and the top of the insertion pile (3) is connected to an extension pile (12). Both the advancing cylinder (2) and the extension pile (12) are clamped and inserted by the pile driver.

4. The pile-mesh composite foundation reinforcement structure according to claim 3, characterized in that: The sealing plate (5) has inclined pressure plates (13) at its bottom.

5. The pile-mesh composite foundation reinforcement structure according to claim 4, characterized in that: The bottom of the embedding groove (4) is fixedly connected to an elastic rod (14), and the elastic rod (14) is in a limiting fit with the bottom outer wall of the embedding plate (7).

6. The pile-mesh composite foundation reinforcement structure according to claim 5, characterized in that: The plug-in assembly includes a plug plate (9) that is plugged into the through slot (15), and a U-shaped rod (16) that is rotatably connected to the top of the sealing slot (6) and rotatably connected to the plug plate (9).

7. The pile-mesh composite foundation reinforcement structure according to claim 6, characterized in that: The top of the extension pile (12) and the top of the insertion pile (3) are provided with a first pair of interfaces (17), and the bottom of the extension pile (12) is provided with a second pair of interfaces (18) corresponding to the first pair of interfaces (17). A plug-in plate (19) is inserted between the first pair of interfaces (17) and the second pair of interfaces (18).

8. The pile-mesh composite foundation reinforcement structure according to claim 7, characterized in that: The plug plate (19) has a first threaded rod (20) and a second threaded rod (21) that are inclinedly distributed at both ends. The end of the first threaded rod (20) is inserted into the first interface (17), and the end of the second threaded rod (21) presses against the first threaded rod (20).

9. The pile-mesh composite foundation reinforcement structure according to claim 1, characterized in that: The top edge of the positioning cylinder (1) is provided with an annular protrusion (23), and a plurality of fixing holes are provided on the annular protrusion (23). The plurality of fixing holes are arranged circumferentially, and an anchor rod is inserted into each fixing hole.

10. A method for treating a pile-mesh composite foundation reinforcement structure, characterized in that, The pile-net composite foundation reinforcement structure according to any one of claims 1 to 9, specifically includes the following steps; S1. Laying out the line, excavating with an excavator, inserting the positioning cylinder (1) into the foundation, and hammering to make the bottom of the positioning cylinder (1) flush with the top surface of the foundation, and fixing the position of the positioning cylinder (1) by inserting the anchor rod into the fixing hole at the edge of the annular protrusion (23), with the central axis of the positioning cylinder (1) coinciding with the design central axis of the pile position; S2, Insert downwards, and use the pile driver to clamp the rotating ring (11) to vertically lift the advance cylinder (2) so that the advance cylinder (2) is threaded into the positioning cylinder (1), and then use the pile driver to clamp and insert it into the top of the pile (3); The pile driver holding the top of the inserted pile (3) moves vertically downward, driving the inserted pile (3) to be inserted vertically into the foundation without rotating, and the inserted pile (3) is inserted downward quickly and over a large distance; At the same time, under the action of the thread, the advancing cylinder (2) slowly and with a small distance is inserted into the foundation inside the fixed positioning cylinder (1). The advancing cylinder (2) rotates and squeezes the foundation around the inserted pile (3) to reinforce the foundation around the inserted pile (3). S3. Add an extension pile (12) so that the extension pile (12) is installed at the end of the insertion pile (3) and the top of the extension pile (12) is clamped by the pile driver. The pile driver drives the extension pile (12) to move vertically downward without rotating, thereby driving the insertion pile (3) at the bottom of the extension pile (12) to continue to be inserted into the foundation without rotating. When the annular hammer (10) reaches the design depth, the top height of the extension pile (12) is lower than the bottom height of the embedded plate (7); S4. Pour concrete into the positioning cylinder (1). The concrete passes through the middle of the positioning cylinder (1) and enters the middle of the cylinder (2). The concrete impacts the pressure plate (13), causing the sealing plate (5) to move down, thereby driving the embedded plate (7) to rotate and press against the foundation. Under the pressure of the concrete, the insert plate (9) is inserted into the foundation. S5. Concrete enters and fills the channel formed by the annular hammer (10) densely; S6. Perform steps S1 to S5 on other pile locations at the foundation treatment site to complete the pile-net composite foundation reinforcement.

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