An abnormally shaped foundation bearing pile and a construction method thereof

Abstract

This invention relates to the field of load-bearing pile technology and discloses an irregularly shaped foundation load-bearing pile, including a pile body, multiple guide plates fixedly connected to the bottom of the pile body, a rotating hole opened at the top of the pile body, a rotating disk rotatably connected inside the rotating hole, a threaded rod inside the pile body, and the threaded rod being fixed to the rotating disk. A sliding rod is also provided inside the pile body. This invention also proposes a construction method for irregularly shaped foundation load-bearing piles, including the following steps: S1: Excavating the foundation pit using an excavator, and compacting the foundation after excavation; S2: Stable installation. This invention not only increases the contact area of ​​the load-bearing pile, preventing foundation subsidence and improving the safety of the load-bearing pile, but also prevents the baffle from moving, improving the stability of the load-bearing pile. Furthermore, it reduces the force on the sliding rod, preventing slippage between the sliding rod and the threaded rod, thus improving the performance of the load-bearing pile.

Description

Technical Field

[0001] This invention relates to the field of load-bearing pile technology, specifically to an irregularly shaped foundation load-bearing pile and its construction method. Background Technology

[0002] Load-bearing piles are mainly divided into precast pipe piles and bored cast-in-place piles. Most precast pipe piles are round, which is beneficial for the installation of load-bearing piles, but they are prone to slow sinking.

[0003] A search revealed that CN217629859U discloses a high-bearing-capacity load-bearing pile for building foundations. By covering the top of the load-bearing pile with a cover plate, the bottom of the cover plate contacts the top of the turntable, thus improving the stability of the load-bearing pile within the foundation. However, the following drawback exists: the bottom plate of the load-bearing pile is conical, which, while facilitating installation, is not conducive to overall fixation and is prone to sinking, causing the foundation of the load-bearing pile to subside, thereby affecting the building above. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an irregularly shaped foundation load-bearing pile and its construction method, mainly to solve the problem that load-bearing piles are not conducive to the overall fixation, are prone to sinking, and cause the foundation of the load-bearing pile to sink, thereby affecting the building above.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: A non-circular foundation load-bearing pile includes a pile body, with multiple guide plates fixedly connected to the bottom of the pile body, a rotating hole opened at the top of the pile body, a rotating disk rotatably connected inside the rotating hole, a threaded rod provided inside the pile body, and the threaded rod being fixed to the rotating disk, a sliding rod provided inside the pile body, a threaded hole opened at the top of the sliding rod, and the threaded rod being threadedly connected to the threaded hole, a first fixing frame fixedly connected to the inner wall of the pile body, and the sliding rod passing through the first fixing frame, rotating rods rotatably connected to multiple outer walls of the sliding rod, a baffle rotatably connected to one end of the rotating rod, multiple guide grooves opened on the outer side of the pile body, and the baffles slidingly connected to the guide grooves, multiple second clearance grooves opened on the upper surface of the first fixing frame, a limiting mechanism for limiting the baffles inside the pile body, and a fixing mechanism for fixing the sliding rod inside the pile body.

[0006] Furthermore, the limiting mechanism includes multiple connecting shafts, which are rotatably connected to multiple guide plates respectively. Two third fixing frames are rotatably connected to the outer side of each of the multiple connecting shafts, and the third fixing frames are fixed to the pile body. A torsion spring is fixedly connected to one side of each of the multiple third fixing frames, and the torsion spring is fixed to the connecting shaft. Two fixing rings are fixedly connected to the outer side of each of the multiple connecting shafts, and a slot is opened on the outer side of each of the multiple fixing rings. A take-up roller is keyed to the outer side of each of the multiple connecting shafts, and a pull rope is wound around the outer side of the take-up roller, and the pull rope is fixed to the slide rod. Two L-shaped frames are fixedly connected to the bottom of the baffle, and the L-shaped frames pass through the second clearance groove and slide within the second clearance groove.

[0007] Based on the aforementioned scheme, the fixing mechanism includes multiple insert plates, each with a beveled bottom end. Multiple first clearance grooves are formed on the top of the pile body. The insert plates are slidably connected to the first clearance grooves. A second fixing frame is fixedly connected to the inner wall of the pile body, and a sliding rod passes through the second fixing frame. Multiple slots are formed on the upper surface of the second fixing frame, and the insert plates are inserted into the slots. Multiple sliding grooves are formed inside the second fixing frame, and the sliding grooves communicate with the slots. Insert brackets are slidably connected within the sliding grooves. Clearance holes are formed on both sides of the multiple sliding grooves, and the insert brackets are slidably connected to the clearance holes. Tension springs are fixedly connected within the clearance holes, and the tension springs are fixed to the insert brackets. Limit grooves are formed on multiple outer walls of the sliding rod.

[0008] As a further embodiment of the present invention, a hexagonal groove is provided on the upper surface of the rotating disk, and a protective cover is provided in the hexagonal groove. A support frame is fixedly connected to the bottom of the first fixing frame, and the support frame is fixed to the guide plate.

[0009] Furthermore, the bottom of the baffle is fixedly connected to multiple fixing blocks, and the fixing blocks are fixed to the L-shaped frame.

[0010] Based on the aforementioned scheme, multiple connecting columns are fixedly connected to the top outer wall of the pile, and the same circular plate is slidably connected to the outer side of the multiple connecting columns.

[0011] As a further embodiment of the present invention, the upper surface of the circular plate is provided with a clearance opening.

[0012] This invention also proposes a construction method for load-bearing piles on irregularly shaped foundations, comprising the following steps: S1: Excavate the foundation pit, spray water on the foundation pit to be excavated with a water gun, let it stand for a period of time, pump out the mud in the foundation pit, and then excavate the foundation pit by using an excavator. After the foundation pit is excavated, the foundation is compacted and a groove for the installation of load-bearing piles is reserved. S2: Stable installation: Prepare the load-bearing piles according to regulations, then use a crane to lift the load-bearing piles to the installation groove, insert the conical end into the installation groove, and after the pile body is inserted, rotate the rotating disk to extend the baffle into the foundation and fix it. S3: Limiting and fixing. During the movement of the baffle, the L-shaped frame will move along the second clearance groove. When the baffle cannot move, the L-shaped frame will engage with the slot on the fixing ring to limit the baffle and prevent it from moving. S4: Connection and fixing. The connection between load-bearing piles is to connect individual piles by means of a socket and locking mechanism, thereby completing the construction of the load-bearing piles.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides an irregularly shaped foundation bearing pile and its construction method, which has the following beneficial effects: 1. By using the sliding rod, rotating rod, and baffle in combination, the pile body is inserted into the foundation through the conical surface composed of multiple guide plates. Rotating the threaded rod will cause the sliding rod to move upward. During the movement of the sliding rod, the rotating rod will drive the baffle to move outward along the guide groove, thereby contacting the ground. This increases the contact area of ​​the load-bearing pile, prevents the foundation of the load-bearing pile from sinking, and improves the safety of the load-bearing pile.

[0014] 2. By setting up a limiting mechanism, when the baffle moves completely out of the pile body and increases the contact area of ​​the weighing pile, the limiting mechanism can limit the position of the baffle to prevent the baffle from moving and improve the stability of the load-bearing pile.

[0015] 3. By setting up a fixing mechanism, after the baffle has completely moved the pile body, the position of the sliding rod can be fixed by the fixing mechanism, which can reduce the force on the sliding rod, avoid the phenomenon of slippage between the sliding rod and the threaded rod, and improve the performance of the load-bearing pile.

[0016] 4. With the hexagonal groove, when it is necessary to rotate the threaded rod, the operator can use a hexagonal wrench to insert into the hexagonal groove to rotate the threaded rod, which makes it convenient for the operator to rotate the threaded rod and improves the ease of use of the load-bearing pile. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an irregularly shaped foundation load-bearing pile proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of an irregularly shaped foundation load-bearing pile proposed in this invention; Figure 3 This is a partial cross-sectional structural schematic diagram of an irregularly shaped foundation load-bearing pile proposed in this invention; Figure 4This is a cross-sectional structural diagram of a fixing frame for an irregularly shaped foundation load-bearing pile proposed in this invention; Figure 5 This is an enlarged schematic diagram of the fixing frame structure for an irregularly shaped foundation load-bearing pile proposed in this invention; Figure 6 This is an enlarged schematic diagram of the connecting shaft structure of an irregularly shaped foundation load-bearing pile proposed in this invention; Figure 7 This is a schematic diagram of the construction process of an irregular foundation load-bearing pile proposed in this invention.

[0018] In the diagram: 1. Pile body; 2. Circular plate; 3. Connecting column; 4. Recessed opening; 5. Protective cover; 6. Insert plate; 7. Threaded rod; 8. Sliding rod; 9. First fixing frame; 10. Support frame; 11. Second fixing frame; 12. Guide groove; 13. Baffle; 14. Threaded hole; 15. First recessed groove; 16. Rotating disk; 17. Hexagonal groove; 18. Sliding groove; 19. Slot; 20. Recessed hole; 21. Tension spring; 22. Insert frame; 23. Fixing block; 24. L-shaped frame; 25. Second recessed groove; 26. Third fixing frame; 27. Connecting shaft; 28. Guide plate; 29. ​​Rotating rod; 30. Limiting groove; 31. Torsion spring; 32. Fixing ring; 33. Take-up roller; 34. Pull rope; 35. Slot. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Reference Figures 1-7A type of irregularly shaped foundation load-bearing pile includes a pile body 1. Multiple guide plates 28 are bolted to the bottom of the pile body 1. A rotating hole is opened at the top of the pile body 1, and a rotating disk 16 is rotatably connected inside the rotating hole. A threaded rod 7 is provided inside the pile body 1 and is fixed to the rotating disk 16. A sliding rod 8 is provided inside the pile body 1, and a threaded hole 14 is opened at the top of the sliding rod 8, with the threaded rod 7 threadedly connected to the threaded hole 14. A first fixing frame 9 is welded to the inner wall of the pile body 1, and the sliding rod 8 passes through the first fixing frame 9. Rotating rods 29 are rotatably connected to multiple outer walls of the sliding rod 8. A baffle 13 is rotatably connected to one end of the rotating rod 29. Multiple guide grooves 12 are opened on the outer side of the pile body 1, and the baffle 13 is slidably connected to the guide grooves 12. Multiple second clearance grooves 25 are opened on the upper surface of the first fixing frame 9. The pile body 1 is then guided by multiple guide plates 28. The conical shape of the pile body 1 is inserted into the soil. After the pile body 1 is inserted, the rotating disk 16 is rotated, which will drive the threaded rod 7 to rotate. At this time, since the first fixing frame 9 limits the sliding rod 8, the threaded rod 7 will drive the sliding rod 8 to move upward. During the upward movement of the sliding rod 8, the rotating rod 29 will move and rotate between the rotating rod 29 and the sliding rod 8. At the same time, the rotating rod 29 will push the baffle 13 to move outward along the guide groove 12 and rotate with the baffle 13, thereby extending the baffle 13 into the soil until the baffle 13 can no longer move and the threaded rod 7 stops rotating. This increases the contact area of ​​the load-bearing pile, avoids the foundation of the load-bearing pile from sinking, and improves the safety of the load-bearing pile. The pile body 1 is provided with a limiting mechanism to limit the baffle 13 and a fixing mechanism to fix the sliding rod 8.

[0021] In particular, the limiting mechanism of this invention includes multiple connecting shafts 27, which are rotatably connected to multiple guide plates 28. Two third fixing frames 26 are rotatably connected to the outer sides of each connecting shaft 27, and the third fixing frames 26 are fixed to the pile body 1. A torsion spring 31 is welded to one side of each of the third fixing frames 26, and the torsion spring 31 is fixed to the connecting shaft 27. Two fixing rings 32 are bolted to the outer sides of each connecting shaft 27, and slots 35 are provided on the outer sides of each fixing ring 32. A winding roller 33 is keyed to the outer sides of each connecting shaft 27, and a pull rope 34 is wound around the outer side of the winding roller 33 and fixed to the slide rod 8. Two L-shaped frames 24 are bolted to the bottom of the baffle 13, and the L-shaped frames 24 pass through... The L-shaped frame 24 slides through the second clearance groove 25 and engages with the slot 35. During the upward movement of the sliding rod 8, the pull rope 34 pulls the winding roller 33 to rotate, which in turn drives the connecting shaft 27 to rotate. The connecting shaft 27 then drives the fixing ring 32 to rotate. As the baffle 13 moves, the L-shaped frame 24 moves along the second clearance groove 25. When the baffle 13 cannot move, the L-shaped frame 24 engages with the slot 35 on the fixing ring 32, thus limiting the movement of the baffle 13 and improving the stability of the load-bearing pile. The fixing mechanism includes multiple insert plates 6, each with a slope at its bottom. Multiple first clearance grooves 15 are opened at the top of the pile body 1. Each insert plate 6 is slidably connected to multiple first clearance grooves 15. A second fixing frame 11 is welded to the inner wall of the pile body 1, and the slide rod 8 passes through the second fixing frame 11. Multiple slots 19 are opened on the upper surface of the second fixing frame 11, and the insert plate 6 is inserted into the slot 19. Multiple sliding grooves 18 are opened in the second fixing frame 11, and the sliding grooves 18 are connected to the slots 19. Insert brackets 22 are slidably connected in the sliding grooves 18, and the insert brackets 22 are in contact with the insert plate 6. Clearance holes 20 are opened on both sides of the multiple sliding grooves 18, and the insert brackets 22 are slidably connected to the clearance holes 20. Tension springs 21 are welded in the clearance holes 20, and the tension springs 21 are fixed to the insert brackets 22. Limit grooves 30 are opened on multiple outer walls of the slide rod 8, and the insert brackets 22 are inserted into the limit grooves 30. When the threaded rod 7 stops... After the rotation stops, the slide rod 8 no longer moves. At this time, the limiting groove 30 on the slide rod 8 is aligned with the sliding groove 18 on the second fixed frame 11, pushing the insert plate 6 downward. The insert plate 6 will push the insert bracket 22 to move through its inclined surface, so that the insert bracket 22 enters into the limiting groove 30 and stretches the tension spring 21 to fix the slide rod 8, reducing the force on the slide rod 8 and preventing the phenomenon of stripping between the slide rod 8 and the threaded rod 7, thus improving the use effect of the load-bearing pile. The upper surface of the rotating disk 16 is provided with a hexagonal groove 17. The operator can use a hexagonal wrench to insert into the hexagonal groove 17 and rotate the rotating disk 16 by the hexagonal wrench. A protective cover 5 is provided in the hexagonal groove 17. A support frame 10 is welded to the bottom of the first fixed frame 9, and the support frame 10 is fixed to the guide plate 28.Multiple fixing blocks 23 are welded to the bottom of the baffle 13, and the fixing blocks 23 are fixed to the L-shaped frame 24. Multiple connecting columns 3 are welded to the top outer wall of the pile body 1. The same circular plate 2 is slidably connected to the outer side of the multiple connecting columns 3, and the circular plate 2 is in contact with the insert plate 6. Pressing the circular plate 2 will push the insert plate 6 downwards. A clearance opening 4 is provided on the upper surface of the circular plate 2.

[0022] The working principle of this embodiment is as follows: During use, the pile body 1 is inserted into the soil through a cone-shaped structure composed of multiple guide plates 28. After the pile body 1 is inserted, the rotating disk 16 is rotated, which drives the threaded rod 7 to rotate. At this time, because the first fixing frame 9 limits the sliding rod 8, the threaded rod 7 drives the sliding rod 8 to move upward. During the upward movement of the sliding rod 8, the rotating rod 29 moves, causing rotation between the rotating rod 29 and the sliding rod 8. Simultaneously, the rotating rod 29 pushes the baffle 13 along the guide groove 12 outward from the pile body 1, causing rotation between the baffle 13 and the pile body 13. This extends the baffle 13 into the soil until it can no longer move, at which point the rotation of the threaded rod 7 stops. This increases the contact area of ​​the load-bearing pile, preventing the foundation of the load-bearing pile from sinking and improving the safety of the load-bearing pile. During the upward movement of the sliding rod 8, the pull rope 34 pulls the winding roller 33 to rotate. The connecting shaft 27 rotates, which in turn rotates the fixing ring 32. During the movement of the baffle 13, the L-shaped frame 24 moves along the second clearance groove 25. When the baffle 13 cannot move, the L-shaped frame 24 engages with the slot 35 on the fixing ring 32, thereby limiting the baffle 13 and preventing it from moving, thus improving the stability of the load-bearing pile. When the threaded rod 7 stops rotating, the sliding rod 8 stops moving. At this time, the limiting groove 30 on the sliding rod 8 aligns with the sliding groove 18 on the second fixing frame 11. Then, the round plate 2 is pressed, which pushes the insert plate 6 downward. The insert plate 6 pushes the insert bracket 22 through its inclined surface, causing the insert bracket 22 to enter the limiting groove 30 and stretch the tension spring 21 to fix the sliding rod 8, reducing the force on the sliding rod 8 and preventing slippage between the sliding rod 8 and the threaded rod 7, thus improving the performance of the load-bearing pile.

[0023] This invention also proposes a construction method for load-bearing piles on irregularly shaped foundations, comprising the following steps: S1: Excavate the foundation pit, spray water on the foundation pit to be excavated with a water gun, let it stand for a period of time, pump out the mud in the foundation pit, and then excavate the foundation pit by using an excavator. After the foundation pit is excavated, the foundation is compacted and a groove for the installation of load-bearing piles is reserved. S2: Stable installation: Prepare the load-bearing piles according to regulations, then use a crane to lift the load-bearing piles to the installation slot, insert the conical end into the installation slot, and after the pile body is inserted, rotate the rotating disc to extend the baffle into the foundation to fix it, which increases the contact area of ​​the load-bearing piles, prevents the foundation of the load-bearing piles from sinking, and improves the safety of the use of the load-bearing piles. S3: Limiting and fixing. During the movement of the baffle, the L-shaped frame will move along the second clearance groove. When the baffle cannot move, the L-shaped frame will engage with the slot on the fixing ring to limit the baffle and prevent it from moving, thus improving the stability of the load-bearing pile. S4: Connection and fixing. The connection between load-bearing piles is to connect individual piles by means of a socket and locking mechanism, thereby completing the construction of the load-bearing piles.

[0024] In the description herein, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A profiled ground bearing pile comprising a pile body (1), characterised in that, The bottom of the pile body (1) is fixedly connected to multiple guide plates (28). The top of the pile body (1) is provided with a rotating hole, and a rotating disk (16) is rotatably connected in the rotating hole. The pile body (1) is provided with a threaded rod (7), and the threaded rod (7) is fixed to the rotating disk (16). The pile body (1) is provided with a sliding rod (8), and the top of the sliding rod (8) is provided with a threaded hole (14), and the threaded rod (7) is threadedly connected to the threaded hole (14). The inner wall of the pile body (1) is fixedly connected to a first fixing frame (9), and the sliding rod (8) passes through... Passing through the first fixed frame (9), the sliding rod (8) is rotatably connected to rotating rods (29) on multiple outer walls. One end of the rotating rod (29) is rotatably connected to a baffle (13). Multiple guide grooves (12) are provided on the outer side of the pile body (1), and the baffle (13) is slidably connected to the guide grooves (12). Multiple second clearance grooves (25) are provided on the upper surface of the first fixed frame (9). A limiting mechanism for limiting the baffle (13) is provided inside the pile body (1). A fixing mechanism for fixing the sliding rod (8) is provided inside the pile body (1). The limiting mechanism includes multiple connecting shafts (27), which are rotatably connected to multiple guide plates (28). Two third fixing frames (26) are rotatably connected to the outer side of each of the multiple connecting shafts (27), and the third fixing frames (26) are fixed to the pile body (1). A torsion spring (31) is fixedly connected to one side of each of the multiple third fixing frames (26), and the torsion spring (31) is fixed to the connecting shaft (27). Two fixing rings (32) are fixedly connected to the outer side of each of the multiple connecting shafts (27). The outer sides of the multiple fixed rings (32) are provided with slots (35), and the outer sides of the multiple connecting shafts (27) are keyed with take-up rollers (33). A pull rope (34) is wound around the outer side of the take-up rollers (33), and the pull rope (34) is fixed to the slide rod (8). The bottom of the baffle (13) is fixedly connected with two L-shaped frames (24), and the L-shaped frames (24) pass through the second clearance groove (25) and slide in the second clearance groove (25). When the baffle (13) cannot move, the L-shaped frames (24) are engaged with the slots (35).

2. The irregularly shaped foundation bearing pile according to claim 1, characterized in that, The fixing mechanism includes multiple insert plates (6), each with a beveled bottom end. The top of the pile body (1) has multiple first clearance grooves (15). The insert plates (6) are slidably connected to the first clearance grooves (15). A second fixing frame (11) is fixedly connected to the inner wall of the pile body (1), and a sliding rod (8) passes through the second fixing frame (11). The upper surface of the second fixing frame (11) has multiple slots (19), and the insert plates (6) are inserted into the slots (19). Next, the second fixing frame (11) is provided with multiple sliding grooves (18), and the sliding grooves (18) are connected to the slots (19). A bracket (22) is slidably connected in the sliding grooves (18). A clearance hole (20) is provided on both sides of the multiple sliding grooves (18), and the bracket (22) is slidably connected to the clearance hole (20). A tension spring (21) is fixedly connected in the clearance hole (20), and the tension spring (21) is fixed to the bracket (22). Limiting grooves (30) are provided on the outer walls of the sliding rod (8) on multiple sides.

3. The irregularly shaped foundation bearing pile according to claim 1, characterized in that, The upper surface of the rotating disk (16) is provided with a hexagonal groove (17), and a protective cover (5) is provided in the hexagonal groove (17). The bottom of the first fixed frame (9) is fixedly connected to a support frame (10), and the support frame (10) is fixed to the guide plate (28).

4. The irregularly shaped foundation bearing pile according to claim 1, characterized in that, The bottom of the baffle (13) is fixedly connected to a plurality of fixing blocks (23), and the fixing blocks (23) are fixed to the L-shaped frame (24).

5. A non-circular foundation bearing pile according to claim 2, characterized in that, The top outer wall of the pile body (1) is fixedly connected with multiple connecting columns (3), and the outer side of the multiple connecting columns (3) is slidably connected with the same circular plate (2), and the circular plate (2) is in contact with the insert plate (6). When the circular plate (2) is pressed, the circular plate (2) will push the insert plate (6) to move downward.

6. A non-circular foundation bearing pile according to claim 5, characterized in that, The upper surface of the circular plate (2) is provided with a clearance opening (4).

7. The construction method for irregularly shaped foundation bearing piles according to any one of claims 1-6, characterized in that, Includes the following steps: S1: Excavate the foundation pit, spray water on the foundation pit to be excavated with a water gun, let it stand for a period of time, pump out the mud in the foundation pit, and then excavate the foundation pit by using an excavator. After the foundation pit is excavated, the foundation is compacted and a groove for the installation of load-bearing piles is reserved. S2: Stable installation: Prepare the load-bearing piles according to regulations, then use a crane to lift the load-bearing piles to the installation groove, insert the conical end composed of guide plates into the installation groove, and after the pile body is inserted, rotate the rotating disk to extend the baffle into the foundation and fix it. S3: Limiting and fixing. During the movement of the baffle, the L-shaped frame will move along the second clearance groove. When the baffle cannot move, the L-shaped frame will engage with the slot on the fixing ring to limit the baffle and prevent it from moving. S4: Connection and fixing. The connection between load-bearing piles is to connect individual piles by means of a socket and locking mechanism, thereby completing the construction of the load-bearing piles.

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