Integral type anti-deformation row pile supporting structure and construction method thereof
By installing retaining plates and flipping support plates between steel columns, the integral anti-deformation pile support structure solves the stability and economic problems of traditional pile support in mining subsidence areas, achieving efficient and low-cost foundation pit support.
Patent Information
- Application Number
- CN202511312493.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2025-11-14
AI Technical Summary
Traditional pile support is prone to tilting and cracking in historical mining subsidence areas, lacks overall coordination and deformation resistance, and requires a large amount of concrete, resulting in poor economic efficiency.
An integral anti-deformation pile support structure is adopted. By installing multiple retaining plates and flip-up support plates between adjacent steel columns, and using bolt fixing and self-supporting structure, combined with anchor tie rods and retaining plate reinforcement, the linkage and self-supporting performance are improved, and the amount of concrete used is reduced.
It improves the overall linkage and self-supporting performance of pile support, reduces concrete usage and construction costs, and increases construction speed and stability.
Smart Images
Figure CN120945910A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pile support technology, and in particular to an integral anti-deformation pile support structure and its construction method. Background Technology
[0002] Piling support is a commonly used form of lateral support in building foundation pit engineering. However, when constructing in mining areas (especially those with historical mining subsidence), new building foundation pits face unique and severe challenges caused by mining subsidence. Underground mining subsidence causes continuous or long-term slow non-uniform settlement deformation of the surface and shallow soil. This dynamically developing settlement effect is transmitted to the perimeter of the foundation pit, causing traditional piling support to bear complex additional loads (such as differential settlement, tensile and compressive stresses, and torsional forces) far exceeding conventional design requirements.
[0003] Existing pile support (usually using a pile spacing of about 200mm, supplemented by anchor reinforcement and inter-pile seepage prevention curtain) has significant defects in settlement areas: its discrete structure lacks rigid connection and coordinated force-bearing mechanism between piles. Under differential deformation caused by settlement, the piles are prone to independent tilting, cracking or even breakage, and the overall coordinated deformation resistance is insufficient. At the same time, the practice of further reducing the pile spacing or increasing the pile diameter to resist settlement deformation leads to a surge in concrete consumption and poor economic efficiency. Summary of the Invention
[0004] The purpose of this invention is to provide a cost-effective, deformation-resistant, and long-term performance-advantageous pile support system and its construction method.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] An integral anti-deformation pile support includes steel columns, one outer surface of which is covered with a concrete column. Multiple threaded holes are provided on one outer surface of the steel column. Multiple retaining plates are installed between two adjacent steel columns. Two mounting holes are provided at each symmetrical end of the retaining plate, and the mounting holes correspond to the mounting threaded holes. The retaining plates are fixed to the steel columns by bolts. Multiple retaining plates are distributed side by side.
[0007] By adopting the above technical solution, multiple side-by-side retaining plates can be used to improve the linkage between two adjacent steel pillars and the protective performance of the entire pile support, while reducing the number of steel pillars, thereby reducing the amount of concrete pillars used and saving costs.
[0008] Furthermore, a self-supporting mounting groove is provided on one outer surface of the steel column, and a second flipping support plate is rotatably mounted on the symmetrical inner wall of the self-supporting mounting groove. The rotatable connection end of the second flipping support plate and the steel column is located at the lower end of the self-supporting mounting groove.
[0009] By adopting the above technical solution, the second flip support plate can be flipped inside the self-supporting installation groove, thereby allowing one end of the second flip support plate to be inserted into the soil on one side of the steel column, thus improving the self-supporting performance of the steel column.
[0010] Furthermore, a first flip support plate is rotatably mounted on the upper end of the second flip support plate, a rotary joint is rotatably mounted on the upper end of the first flip support plate, and a linkage screw is rotatably mounted on the upper end of the rotary joint.
[0011] By adopting the above technical solution, a force can be applied to one end of the first flip support plate, thereby causing the first flip support plate to drive the second flip support plate to flip together, ensuring the stable deployment of the self-supporting structure.
[0012] Furthermore, a fixed adjustment block is fixedly connected to the symmetrical inner wall of the self-supporting mounting groove. A threaded hole is provided on the symmetrical side surface of the fixed adjustment block, and a linkage screw passes through the threaded hole on the side surface of the fixed adjustment block. The linkage screw is threadedly connected to the fixed adjustment block, and a linkage end is fixedly connected to the upper end of the linkage screw.
[0013] By adopting the above technical solution and setting a fixed adjustment block, the linkage screw can be moved in position when it is rotated, thereby effectively completing the deployment operation of the self-supporting structure.
[0014] Furthermore, a rotating connecting seat is fixedly connected to the upper end of the side surface of the steel column, and a first anchoring tie rod is rotatably installed in the mounting hole of the rotating connecting seat. A threaded sleeve is externally threaded onto one end of the first anchoring tie rod, and a second anchoring tie rod is internally threaded onto the opening of the other end of the threaded sleeve.
[0015] By adopting the above technical solution, the distance between the first anchor rod and the second anchor rod can be adjusted by rotating the threaded sleeve, thereby adjusting the length of the entire anchor fixing structure and improving the flexibility of installation.
[0016] Furthermore, one end of the second anchor rod is rotatably connected to an anchor fixing plate, and an anchor short rod passes through the mounting hole on the outer surface of the anchor fixing plate.
[0017] By adopting the above technical solution, the rotatable connection between the anchor fixing plate and the second anchor tie rod facilitates the placement of the anchor fixing plate, thereby facilitating the fixed installation of the anchor short.
[0018] Furthermore, a retaining plate reinforcing rib is fixedly connected to one outer surface of the retaining plate.
[0019] By adopting the above technical solutions and setting up reinforcing bars for the retaining plate, the overall protective performance of the retaining plate can be effectively improved, thereby improving the protective performance of the entire pile support.
[0020] Furthermore, its construction method is as follows:
[0021] A1: First, drill holes at the pre-embedded points using drilling equipment. Then, place the steel support column in the drilled hole. Next, adjust the distance between the first and second anchor rods using threaded sleeves. After adjustment, attach the anchor fixing plate to the ground surface. Then, pass the short anchor rod through the through hole on the outer surface of the anchor fixing plate and drive it into the ground surface at an angle. Next, pour concrete into the hole to make a concrete support column. After pouring, excavate the foundation pit. When the excavation depth reaches the width of a retaining plate, first turn the linkage end to make the linkage screw rotate.
[0022] A2: Since the linkage screw is rotatably connected to the rotary joint, and the linkage screw passes through the threaded hole on the side surface of the fixed adjustment block, the rotation of the linkage screw causes the rotary joint to move inside the self-supporting mounting groove, thereby causing the rotary joint to apply force to the first flip support plate and the second flip support plate.
[0023] A3: Because the rotary joint is rotatably connected to the first flip support plate, the first flip support plate is rotatably connected to the second flip support plate, and the second flip support plate is rotatably connected to the steel column, the rotation connection point between the first flip support plate and the second flip support plate protrudes outward.
[0024] A4: After the linkage end head moves to a certain position, install the retaining plate. After installation, continue to excavate the foundation pit. When the installation position of a retaining plate is excavated, rotate the linkage end head until the linkage end head can no longer rotate. Then, install the retaining plate in the same way. When the set foundation pit depth is reached, the first flip support plate, the second flip support plate, and the steel column form a triangular structure and are inserted into the soil on one side of the steel column, which improves the self-supporting performance of the steel column.
[0025] By adopting the above technical solution, the traditional pile foundation construction method is replaced, which allows for timely reinforcement of unstable parts of the pile foundation during excavation. It also reduces the amount of concrete used in construction and enables the structure to have self-supporting function.
[0026] In summary, the beneficial technical effects of the present invention are as follows:
[0027] 1. By installing multiple retaining plates between two adjacent steel pillars, and distributing them side by side, the overall linkage of the support structure can be improved. At the same time, the installation of retaining plates can effectively reduce the number of steel pillars and concrete pillars, thereby reducing the amount of concrete used in the entire pile support and the number of boreholes, increasing the construction speed and saving construction costs. In addition, when installing retaining plates, one retaining plate is installed after excavating one installation position, and then another retaining plate installation position is excavated and installed. This avoids the instability of the foundation pit caused by the instability of the support structure due to the excavation of the entire foundation pit at once.
[0028] 2. By turning the linkage end, the linkage screw is driven to rotate, which in turn causes the rotary joint to move downward, so that the rotation connection between the first and second flip support plates protrudes outward and is inserted into the soil on one side of the steel column, giving the steel column self-supporting performance. This effectively improves the self-supporting performance of the pile support and is convenient and efficient to operate. Attached Figure Description
[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0030] Figure 2 This is an enlarged view of point A in the present invention;
[0031] Figure 3 This is an enlarged view of section B of the present invention;
[0032] Figure 4 This is an enlarged view of point C in the present invention.
[0033] In the diagram, 1. Steel support column; 2. Concrete support column; 3. Retaining plate; 4. Linkage screw; 5. Linkage end; 6. Rotary connecting seat; 7. First anchoring tie rod; 8. Installation threaded hole; 9. Fixed adjusting block; 10. Rotary joint; 11. First flip support plate; 12. Threaded sleeve; 13. Second anchoring tie rod; 14. Anchor fixing plate; 15. Anchor short pin; 16. Self-supporting mounting groove; 17. Retaining plate reinforcing rib; 18. Second flip support plate. Detailed Implementation
[0034] The present invention will now be described in further detail.
[0035] Reference Figure 1An integral anti-deformation pile support includes steel supports 1, with concrete supports 2 encased on one outer surface of each steel support 1. Multiple threaded holes 8 are provided on one outer surface of each steel support 1. Multiple retaining plates 3 are installed between adjacent steel supports 1. Each retaining plate 3 has two mounting holes at each symmetrical end, corresponding to the threaded holes 8. The retaining plates 3 are fixed to the steel supports 1 with bolts. Multiple retaining plates 3 are arranged side-by-side. Reinforcing ribs 17 are fixedly connected to one outer surface of each retaining plate 3. The reinforcing ribs 17 effectively enhance the structural strength of the entire retaining plate 3, thereby improving the overall structural strength of the pile support. Furthermore, by installing multiple retaining plates 3 between two adjacent steel pillars 1, with the multiple retaining plates 3 arranged side by side, the overall linkage of the entire support is improved. At the same time, the setting of retaining plates 3 can effectively reduce the number of steel pillars 1 and concrete pillars 2, thereby reducing the amount of concrete used in the entire pile support, reducing the number of boreholes, improving the construction speed, and saving construction costs. In addition, when installing retaining plates 3, one retaining plate 3 is installed after excavating one installation position, and then another retaining plate 3 installation position is excavated and installed. This avoids the instability of the foundation pit caused by the instability of the support due to the excavation of the entire foundation pit at once.
[0036] Reference Figure 1 , Figure 3 and Figure 4 A self-supporting mounting groove 16 is provided on one outer surface of the steel support column 1. A second flip support plate 18 is rotatably mounted on the symmetrical inner wall of the self-supporting mounting groove 16. The rotatable connection end of the second flip support plate 18 and the steel support column 1 is located at the lower end of the self-supporting mounting groove 16. A first flip support plate 11 is rotatably mounted on the upper end of the second flip support plate 18. A rotary joint 10 is rotatably mounted on the upper end of the first flip support plate 11. A linkage screw 4 is rotatably mounted on the upper end of the rotary joint 10. A fixed adjustment block 9 is fixedly connected to the symmetrical inner wall of the self-supporting mounting groove 16. The symmetrical sides of the fixed adjustment block 9... The surface is provided with threaded holes, and the linkage screw 4 passes through the threaded holes on the side surface of the fixed adjustment block 9. The linkage screw 4 is threadedly connected to the fixed adjustment block 9. The upper end of the linkage screw 4 is fixedly connected to the linkage end 5. By turning the linkage end 5, the linkage screw 4 is driven to rotate, thereby causing the rotary joint 10 to move downward. This causes the rotational connection of the first flip support plate 11 and the second flip support plate 18 to protrude outward and insert into the soil on one side of the steel column 1, so that the steel column 1 has self-supporting performance. This effectively improves the self-supporting performance of the pile support and is convenient and efficient to operate.
[0037] Reference Figure 1 and Figure 2A rotating connecting seat 6 is fixedly connected to the upper end of the side surface of the steel support 1. A first anchoring rod 7 is rotatably installed in the mounting hole of the rotating connecting seat 6. A threaded sleeve 12 is threaded onto the outside of one end of the first anchoring rod 7. A second anchoring rod 13 is threaded onto the other end of the threaded sleeve 12. An anchoring fixing plate 14 is rotatably connected to one end of the second anchoring rod 13. An anchoring short rod 15 passes through the mounting hole on the outer surface of the anchoring fixing plate 14. The first anchoring rod 7, the second anchoring rod 13, the threaded sleeve 12, and the anchoring short rod 15 can be used to make the pile support have an anchoring fixing structure, which further enhances the stability of the support. At the same time, the anchoring structure can flexibly adjust the length and is easy to install.
[0038] Working principle: First, a hole is drilled at the pre-embedded point using drilling equipment. Then, the steel support 1 is placed in the drilled hole. Next, the distance between the first anchor rod 7 and the second anchor rod 13 is adjusted using the threaded sleeve 12. After adjustment, the anchor fixing plate 14 is attached to the ground surface. Then, the anchor short nail 15 is passed through the through hole on the outer surface of the anchor fixing plate 14 and driven obliquely into the ground surface. Next, concrete is poured into the hole to create the concrete support 2. After pouring, the foundation pit is excavated. When the excavation depth reaches the width of a retaining plate 3, the linkage end 5 is turned first, which causes the linkage screw 4 to rotate. Since the linkage screw 4 is rotatably connected to the rotary joint 10, and the linkage screw 4 passes through the threaded hole on the side surface of the fixed adjustment block 9, the rotation of the linkage screw 4 causes the rotary joint 10 to move within the self-supporting mounting groove 16, thereby causing the rotation... The joint 10 applies force to the first flip support plate 11 and the second flip support plate 18. Since the rotary joint 10 is rotatably connected to the first flip support plate 11, the first flip support plate 11 is rotatably connected to the second flip support plate 18, and the second flip support plate 18 is rotatably connected to the steel column 1, the rotation connection point of the first flip support plate 11 and the second flip support plate 18 protrudes outward. After the linkage end 5 moves to a certain position, the retaining plate 3 is installed. After the installation is completed, the foundation pit is excavated. When the installation position of a retaining plate 3 is excavated, the linkage end 5 is rotated until the linkage end 5 can no longer rotate. Then, the retaining plate 3 is installed in the same way. When the set foundation pit depth is reached, the first flip support plate 11, the second flip support plate 18, and the steel column 1 form a triangular structure and are inserted into the soil on one side of the steel column 1, which improves the self-supporting performance of the steel column 1.
[0039] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.
Claims
1. An integral anti-deformation pile support, comprising steel supports (1), characterized in that: The outer surface of one side of the steel column (1) is covered with a concrete column (2). Multiple installation threaded holes (8) are provided on the outer surface of one side of the steel column (1). Multiple retaining plates (3) are installed between two adjacent steel columns (1). Two installation holes are provided at each of the symmetrical ends of the retaining plate (3), and the installation holes correspond to the installation threaded holes (8). The retaining plates (3) are fixed to the steel column (1) by bolts. Multiple retaining plates (3) are distributed side by side.
2. The integral anti-deformation pile support according to claim 1, characterized in that: A self-supporting mounting groove (16) is provided on one outer surface of the steel column (1). A second flip support plate (18) is rotatably mounted on the symmetrical inner wall of the self-supporting mounting groove (16). The rotatable connection end of the second flip support plate (18) and the steel column (1) is located at the lower end of the self-supporting mounting groove (16).
3. The integral anti-deformation pile support according to claim 2, characterized in that: The upper end of the second flip support plate (18) is rotatably mounted with the first flip support plate (11), the upper end of the first flip support plate (11) is rotatably mounted with the rotary joint (10), and the upper end of the rotary joint (10) is rotatably mounted with the linkage screw (4).
4. The integral anti-deformation pile support according to claim 3, characterized in that: A fixed adjustment block (9) is fixedly connected to the symmetrical inner wall of the self-supporting mounting groove (16). A threaded hole is provided on the symmetrical side surface of the fixed adjustment block (9), and a linkage screw (4) passes through the threaded hole on the side surface of the fixed adjustment block (9). The linkage screw (4) is threadedly connected to the fixed adjustment block (9), and a linkage end (5) is fixedly connected to the upper end of the linkage screw (4).
5. The integral anti-deformation pile support according to claim 1, characterized in that: A rotating connecting seat (6) is fixedly connected to the upper end of the side surface of the steel column (1). A first anchoring tie rod (7) is rotatably installed in the mounting hole of the rotating connecting seat (6). A threaded sleeve (12) is threaded onto one end of the first anchoring tie rod (7), and a second anchoring tie rod (13) is threaded onto the other end of the threaded sleeve (12).
6. The integral anti-deformation pile support according to claim 5, characterized in that: One end of the second anchor rod (13) is rotatably connected to an anchor fixing plate (14), and an anchor short rod (15) passes through the mounting hole on the outer surface of the anchor fixing plate (14).
7. The integral anti-deformation pile support according to claim 1, characterized in that: A retaining plate reinforcing bar (17) is fixedly connected to one outer surface of the retaining plate (3).
8. An integral anti-deformation pile support as described in any one of claims 1-7, characterized in that: The construction method is as follows: A1: First, drill holes at the pre-embedded points using drilling equipment, then place the steel support (1) in the drilled hole, and then adjust the distance between the first anchor rod (7) and the second anchor rod (13) using the threaded sleeve (12). After adjustment, attach the anchor fixing plate (14) to the ground surface, and then pass the anchor short rod (15) through the through hole on the outer surface of the anchor fixing plate (14) and nail it into the ground surface at an angle. Then pour concrete into the hole to make concrete support (2). After pouring, excavate the foundation pit. When the excavation depth reaches the width of a retaining plate (3), first turn the linkage end (5) to make the linkage screw (4) rotate. A2: Since the linkage screw (4) is rotatably connected to the rotary joint (10), and the linkage screw (4) passes through the threaded hole on the side surface of the fixed adjustment block (9), the rotation of the linkage screw (4) causes the rotary joint (10) to move inside the self-supporting mounting groove (16), thereby causing the rotary joint (10) to exert a force on the first flip support plate (11) and the second flip support plate (18); A3: Since the rotary joint (10) is rotatably connected to the first flip support plate (11), the first flip support plate (11) is rotatably connected to the second flip support plate (18), and the second flip support plate (18) is rotatably connected to the steel column (1), the rotation connection point of the first flip support plate (11) and the second flip support plate (18) protrudes outward. A4: After the linkage end (5) moves to a certain position, install the retaining plate (3). After installation, continue to excavate the foundation pit. When the installation position of a retaining plate (3) is excavated, rotate the linkage end (5) until the linkage end (5) can no longer rotate. Then install the retaining plate (3) in the same way. When the set foundation pit depth is reached, the first flip support plate (11), the second flip support plate (18), and the steel column (1) form a triangular structure and are inserted into the soil on one side of the steel column (1), which improves the self-supporting performance of the steel column (1).