Prefabricated tubular pile device for soft soil foundation treatment
By introducing the design of drive components, five-point rods, follow-up slide chutes, transmission rods and expansion plates into the prefabricated pipe pile device, combining polyurethane expansion blocks and longitudinal steel bars, the problem of insufficient friction between prefabricated pipe piles and soft soil is solved, and the stability of the pipe piles and the bearing capacity of the foundation are enhanced.
Patent Information
- Application Number
- CN202422307481.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The friction between existing prefabricated pipe piles and soft soil is low, which leads to the pile body being easily displaced during construction, affecting the bearing capacity and stability of the foundation.
A prefabricated pipe pile device is designed. By setting up a driving component, a five-point rod, a follow-up slide chute, a follow-up slide, a transmission rod and an expansion plate, the contact area and friction between the pipe pile and soft soil are increased, and the contact effect is enhanced by the polyurethane expansion block when expanded in water, and the structural strength is improved through conical broken blocks and longitudinal reinforcement bars.
It effectively enhances the stability and structural strength of pipe piles in soft soil foundations, and improves construction efficiency and foundation bearing capacity.
Smart Images
Figure CN223189678U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of foundation treatment, and in particular to a prefabricated pipe pile device for soft soil foundation treatment. Background Art
[0002] Soft soil foundations are composed of weak soils such as silt and muddy soil. These types of foundations are widely distributed along my country's southeastern coast and around inland rivers, lakes, and wetlands. Due to their high water content, low shear strength, high compressibility, and low permeability, soft soils are often unsuitable for use as natural foundations. Directly constructing buildings or structures on them poses significant quality and safety risks.
[0003] Precast pipe piles are widely used as a highly effective foundation reinforcement material in soft soil treatment. They offer numerous advantages, including high single-pile bearing capacity, rapid construction, and reliable quality. They can significantly improve the bearing capacity and stability of foundations, ensuring the safe operation of buildings or structures.
[0004] In order to facilitate insertion into the foundation, existing prefabricated pipe piles mostly adopt a smooth surface setting, which results in low friction between the pipe pile surface and the soft soil. This makes it easy for the pile body to shift after implantation during the construction process of the soft soil foundation, seriously affecting the bearing capacity and stability of the foundation. Utility Model Content
[0005] The purpose of this application is to solve the problem that the friction between the surface of the pipe pile and the soft soil is low, which makes the pile body easily displaced after implantation during the construction of the soft soil foundation, seriously affecting the bearing capacity and stability of the foundation. This application provides a prefabricated pipe pile device for soft soil foundation treatment.
[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:
[0007] A prefabricated pipe pile device for soft soil foundation treatment includes a pipe pile body, an adaptation hole is provided in the middle of the pipe pile body, a mounting rod is inserted into the adaptation hole, one end of the mounting rod is evenly fixedly connected to three five-point rods, one end of the five-point rod is evenly provided with five follow-up slides, the follow-up slides are slidably connected to the inside of the follow-up slider, one end of the follow-up slider is rotatably connected to a transmission rod, one end of the pipe pile body is provided with a plurality of receiving grooves adapted to the transmission rod, the middle section of the transmission rod is rotatably connected to the inner wall of the receiving groove, one end of the transmission rod is fixedly connected to an expansion plate, and one end of the pipe pile body is installed with a driving component for driving the mounting rod to move up and down.
[0008] By adopting the above technical solution, by setting the driving component and cooperating with the five-point rod, the follow-up slide, the follow-up slider and the transmission rod, it is convenient to lift the pipe pile body into the prefabricated foundation hole through the lifting tool, and then drive the installation rod by rotating the driving component to drive the transmission rod to rotate around the hinge axis with the receiving groove, and the transmission rod drives the expansion plate to push out of the interior of the receiving groove around the hinge axis with the receiving groove, so that the expansion plate extends to the inside of the foundation outside the pipe pile body, thereby effectively increasing the contact area and friction between the pipe pile body and the soft soil foundation, and enhancing the stability of the pipe pile body in the soft soil foundation.
[0009] Furthermore, the driving assembly includes a support rod fixedly connected to the top of the pipe pile body, one end of the support rod is rotatably connected to a driving screw, and the top of the mounting rod is provided with a driving screw groove threadedly connected to the driving screw.
[0010] By adopting the above technical solution and arranging the driving screw and the driving screw groove for use together, rotating the driving screw can drive the mounting rod to move along the length direction of the driving screw, thereby improving the practicality of the device.
[0011] Furthermore, a conical soil-breaking block is fixedly connected to the top of the expansion plate.
[0012] By adopting the above technical solution and providing the conical breaking blocks, the efficiency of the expansion plate in breaking the foundation is effectively improved, and the practicality of the device is further improved.
[0013] Furthermore, a mounting groove is symmetrically formed at one end of the expansion plate, and a polyurethane expansion block is fixedly connected inside the mounting groove.
[0014] By adopting the above technical solution, by arranging the expansion plate and the polyurethane expansion block for use in conjunction, when the expansion plate is driven to be pushed out of the receiving groove and inserted into the foundation, the expansion plate drives the polyurethane expansion block to contact the moisture inside the foundation, and utilizes the characteristic of the polyurethane expansion block expanding when it comes into contact with water, so that the polyurethane expansion block expands and stretches inside the foundation, further increasing the contact area and friction between the pipe pile body and the inside of the foundation.
[0015] Furthermore, a plurality of stirrups are evenly and fixedly connected inside the pipe pile body, a plurality of longitudinal steel bars are evenly and fixedly connected to one end of the stirrups, and the plurality of longitudinal steel bars are arranged in a circular shape.
[0016] By adopting the above technical solution, by setting the stirrups and using them in conjunction with the longitudinal steel bars, the tensile and shearing resistance of the pipe pile body is effectively enhanced, and the overall structural strength of the pipe pile body is improved.
[0017] Furthermore, a concrete hanging net is fixedly connected to the inner wall of the pipe pile body with an adapting hole in the middle.
[0018] By adopting the above technical solution and arranging the concrete hanging net for use in conjunction with the pipe pile body, the internal structural strength of the pipe pile body is further improved, and the practicability of the device is improved.
[0019] Furthermore, a soil-breaking cone is fixedly connected to the bottom of the pipe pile body.
[0020] By adopting the above technical solution and arranging the earth-breaking cone for use in conjunction with the pipe pile body, the efficiency of inserting the pipe pile body into the foundation hole is effectively improved.
[0021] Furthermore, a metal sheath is fixedly connected to the surface of the ground-breaking cone.
[0022] By adopting the above technical solution and providing the metal sheath in combination with the earth-breaking cone, the surface structural strength of the earth-breaking cone is effectively improved, and the efficiency of inserting the pipe pile body into the foundation hole is further improved.
[0023] In summary, this application has at least one of the following beneficial effects:
[0024] 1. By setting the driving component in cooperation with the five-point rod, the follow-up slide, the follow-up slider and the transmission rod, it is convenient to lift the pipe pile body into the prefabricated foundation hole by the lifting tool, and then drive the installation rod by rotating the driving component to drive the transmission rod to rotate around the hinge axis with the receiving groove, and make the transmission rod drive the expansion plate to push out of the interior of the receiving groove around the hinge axis with the receiving groove, so that the expansion plate extends to the inside of the foundation outside the pipe pile body, thereby effectively increasing the contact area and friction between the pipe pile body and the soft soil foundation, and enhancing the stability of the pipe pile body in the soft soil foundation.
[0025] 2. By setting up the coordinated use of the expansion plate and the polyurethane expansion block, when the expansion plate is driven out of the receiving slot and inserted into the foundation, the expansion plate drives the polyurethane expansion block to contact the moisture inside the foundation, and utilizes the characteristic of the polyurethane expansion block expanding when it comes into contact with water, so that the polyurethane expansion block expands and stretches inside the foundation, further increasing the contact area and friction between the pipe pile body and the inside of the foundation. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.
[0027] Figure 2 It is a schematic diagram of the internal structure of the pipe pile body in this application.
[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the five-point rod in this application.
[0029] Description of reference numerals:
[0030] 1. Pipe pile body; 2. Mounting rod; 3. Five-point rod; 6. Follow-up slide; 7. Follow-up slider; 8. Transmission rod; 9. Storage slot; 10. Expansion plate; 11. Support rod; 12. Drive screw; 13. Drive screw groove; 14. Conical breaking block; 15. Mounting slot; 16. Polyurethane expansion block; 17. Stirrups; 18. Longitudinal steel bars; 19. Concrete hanging net; 20. Breaking cone; 21. Metal sheath. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-3 This application is described in further detail.
[0032] The embodiments of the present application disclose a prefabricated pipe pile device for treating soft soil foundations.
[0033] Reference Figure 1-Figure 3 , a prefabricated pipe pile device for soft soil foundation treatment, including a pipe pile body 1, an adaptation hole is opened in the middle of the pipe pile body 1, a mounting rod 2 is inserted into the adaptation hole, one end of the mounting rod 2 is evenly fixedly connected with three five-point rods 3, one end of the five-point rod 3 is evenly opened with five follow-up slides 6, the follow-up slides 6 are slidably connected with a follow-up slider 7, one end of the follow-up slider 7 is rotatably connected with a transmission rod 8, one end of the pipe pile body 1 is opened with a plurality of receiving grooves 9 adapted to the transmission rod 8, the middle section of the transmission rod 8 is rotatably connected to the inner wall of the receiving groove 9, one end of the transmission rod 8 is fixedly connected with an expansion plate 10, and one end of the pipe pile body 1 is installed with a driving component for driving the mounting rod 2 to move up and down;
[0034] The driving assembly includes a support rod 11 fixedly connected to the top of the pile body 1, one end of the support rod 11 is rotatably connected to a driving screw 12, and the top of the mounting rod 2 is provided with a driving screw groove 13 threadedly connected to the driving screw 12;
[0035] Moreover, a conical soil-breaking block 14 is fixedly connected to the top of the expansion plate 10;
[0036] Furthermore, a mounting groove 15 is symmetrically formed at one end of the expansion board 10 , and a polyurethane expansion block 16 is fixedly connected inside the mounting groove 15 .
[0037] When in use, first, by rotating the driving screw 12 to form a threaded connection with the driving screw groove 13, the installation rod 2 is driven to move upward along the length direction of the driving screw 12, and at the same time, the installation rod 2 drives the five-point rod 3 to pull the follower slider 7 to drive the transmission rod 8 to rotate around the hinge axis with the receiving groove 9, and the transmission rod 8 drives the follower slider 7 to slide along the inner wall of the follower slide groove 6, so that the transmission rod 8 drives the expansion plate 10 to rotate around the hinge axis with the receiving groove 9 to the inside of the receiving groove 9 for storage, and then the pile body 1 is hoisted and inserted into the prefabricated foundation hole by the hoisting tool;
[0038] Then, by rotating the driving screw 12 to form a threaded connection with the driving groove 13, the installation rod 2 is driven to move downward along the length direction of the driving screw 12, and at the same time, the installation rod 2 drives the five-point rod 3 to pull the follower slider 7 to drive the transmission rod 8 to rotate around the hinge axis with the receiving groove 9, and the transmission rod 8 drives the follower slider 7 to slide along the inner wall of the follower slide groove 6, so that the transmission rod 8 drives the expansion plate 10 to push out of the interior of the receiving groove 9 around the hinge axis with the receiving groove 9, and the expansion plate 10 pushes the conical soil-breaking block 14 to break the foundation outside the pipe pile body 1, so that the expansion plate 10 extends to the inside of the foundation outside the pipe pile body 1, and at the same time, the expansion plate 10 drives the polyurethane expansion block 16 to contact the moisture inside the foundation, and then the polyurethane expansion block 16 absorbs water and expands to fill the inside of the foundation, thereby effectively increasing the contact area and friction between the pipe pile body 1 and the soft soil foundation, thereby enhancing the stability of the pipe pile body 1 in the soft soil foundation.
[0039] Reference Figure 1 and Figure 2 A plurality of stirrups 17 are evenly and fixedly connected to the interior of the pile body 1, and a plurality of longitudinal steel bars 18 are evenly and fixedly connected to one end of the stirrups 17. The plurality of longitudinal steel bars 18 are arranged in a circular shape.
[0040] When in use, by fixing and connecting the stirrups 17 and the longitudinal reinforcement 18 inside the pile body 1 , the tensile and shearing resistance of the pile body 1 is effectively enhanced, thereby improving the overall structural strength of the pile body 1 .
[0041] Reference Figure 1 and Figure 2 A concrete hanging net 19 is fixedly connected to the inner wall of the pipe pile body 1 with an adapting hole in the middle.
[0042] During use, the concrete hanging net 19 is fixedly connected to the inner wall of the fitting hole in the middle of the pipe pile body 1, thereby improving the structural strength of the inner wall of the pipe pile body 1. At the same time, when concrete or other reinforcement materials are subsequently poured into the fitting hole according to specific circumstances, the connection strength between the subsequent pouring materials and the pipe pile body 1 is improved, thereby improving the practicality of the device.
[0043] Reference Figure 1 and Figure 2 , a soil-breaking cone 20 is fixedly connected to the bottom of the pile body 1;
[0044] The surface of the earth-breaking cone 20 is fixedly connected with a metal sheath 21 .
[0045] During use, when the pipe pile body 1 is hoisted and moved into the prefabricated foundation hole, the earth-breaking cone 20 can be used to quickly break the blockage inside the foundation hole, thereby improving the efficiency of inserting the pipe pile body 1 into the prefabricated foundation hole. At the same time, the metal sheath 21 is used to increase the surface strength of the earth-breaking cone 20, further improving the insertion efficiency of the pipe pile body 1.
[0046] The implementation principle of the prefabricated pipe pile device for soft soil foundation treatment in this embodiment is as follows: first, the driving screw 12 is rotated to form a threaded connection with the driving screw groove 13, and the installation rod 2 is driven to move upward along the length direction of the driving screw 12, and at the same time, the installation rod 2 drives the five-point rod 3 to pull the follower slider 7 to drive the transmission rod 8 to rotate around the hinge axis with the receiving groove 9, and the transmission rod 8 drives the follower slider 7 to slide along the inner wall of the follower slide groove 6, so that the transmission rod 8 drives the expansion plate 10 to rotate around the hinge axis with the receiving groove 9 to the inside of the receiving groove 9 for storage, and then the pipe pile body 1 is hoisted and inserted into the prefabricated foundation hole by the lifting tool, and the soil-breaking cone 20 is used to quickly break the blockage inside the foundation hole, thereby improving the efficiency of the pipe pile body 1 in inserting the prefabricated foundation hole;
[0047] Then, by rotating the driving screw 12 to form a threaded connection with the driving screw groove 13, the installation rod 2 is driven to move downward along the length direction of the driving screw 12, and at the same time, the installation rod 2 drives the five-point rod 3 to pull the follower slider 7 to drive the transmission rod 8 to rotate around the hinge axis with the receiving groove 9, and the transmission rod 8 drives the follower slider 7 to slide along the inner wall of the follower slide groove 6, so that the transmission rod 8 drives the expansion plate 10 to push out of the interior of the receiving groove 9 around the hinge axis with the receiving groove 9, and the expansion plate 10 pushes the conical soil-breaking block 14 to break the foundation outside the pipe pile body 1, so that the expansion plate 10 extends to the inside of the foundation outside the pipe pile body 1, and at the same time, the expansion plate 10 drives the polyurethane expansion block 16 to contact the moisture inside the foundation, so that the polyurethane expansion block 16 absorbs water and expands to fill the inside of the foundation.
Claims
1. A prefabricated pipe pile device for soft soil foundation treatment, comprising a pipe pile body (1), characterized in that: An adapting hole is provided in the middle of the pipe pile body (1), a mounting rod (2) is inserted into the adapting hole, one end of the mounting rod (2) is evenly fixedly connected with three five-point rods (3), one end of the five-point rod (3) is evenly provided with five follower slides (6), the follower slides (6) are slidably connected with a follower slider (7), one end of the follower slider (7) is rotatably connected with a transmission rod (8), one end of the pipe pile body (1) is provided with a plurality of receiving grooves (9) adapted to the transmission rod (8), the middle section of the transmission rod (8) is rotatably connected to the inner wall of the receiving groove (9), one end of the transmission rod (8) is fixedly connected with an expansion plate (10), and one end of the pipe pile body (1) is provided with a driving component for driving the mounting rod (2) to move up and down.
2. The prefabricated pipe pile device for soft soil foundation treatment according to claim 1, characterized in that: The driving assembly comprises a support rod (11) fixedly connected to the top of the pipe pile body (1); one end of the support rod (11) is rotatably connected to a driving screw rod (12); and the top of the mounting rod (2) is provided with a driving screw groove (13) threadedly connected to the driving screw rod (12).
3. The prefabricated pipe pile device for soft soil foundation treatment according to claim 1, characterized in that: A conical soil-breaking block (14) is fixedly connected to the top of the expansion plate (10).
4. The prefabricated pipe pile device for soft soil foundation treatment according to claim 1, characterized in that: A mounting groove (15) is symmetrically formed at one end of the expansion plate (10), and a polyurethane expansion block (16) is fixedly connected inside the mounting groove (15).
5. The prefabricated pipe pile device for soft soil foundation treatment according to claim 1, characterized in that: A plurality of stirrups (17) are evenly and fixedly connected inside the pipe pile body (1), and a plurality of longitudinal steel bars (18) are evenly and fixedly connected to one end of the stirrup (17), and the plurality of longitudinal steel bars (18) are arranged in a circular shape.
6. The prefabricated pipe pile device for soft soil foundation treatment according to claim 1, characterized in that: The inner wall of the pipe pile body (1) with an adapting hole in the middle is fixedly connected with a concrete hanging net (19).
7. The prefabricated pipe pile device for soft soil foundation treatment according to claim 1, characterized in that: A soil-breaking cone (20) is fixedly connected to the bottom of the pipe pile body (1).
8. The prefabricated pipe pile device for soft soil foundation treatment according to claim 7, characterized in that: A metal sheath (21) is fixedly connected to the surface of the earth-breaking cone (20).