A centrifugal pile, a sheet pile, a centrifugal pile assembly, and a retaining wall
By creating slots and through holes in the centrifugal piles and using insert plates to engage with the slots, the problem of soil leakage at the connection between the centrifugal piles and the insert plates is solved, achieving higher soil leakage prevention performance and structural stability, adapting to asymmetric lateral pressure, and simplifying the installation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIAZHENGHONG NEW MATERIALS TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, soil leakage is prone to occur at the joints between centrifugal piles and insert plates, leading to an imbalance in the stress on the pile wall and threatening the safety of the project and the stability of the surrounding environment.
Slots and through holes are axially opened on the outer wall of the centrifugal pile. The insert plate is engaged with the slot and the protrusion is engaged with the slot to form an effective soil-proof structure. The through holes are used to drain infiltrated soil particles and water, enhancing the structure's impermeability.
It improves the structure's soil-proof performance and stability, adapts to asymmetric lateral pressure, simplifies the installation process, and reduces material costs and complexity.
Smart Images
Figure CN224300028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of support technology, and in particular to a centrifugal pile, insert plate, centrifugal pile assembly and retaining wall. Background Technology
[0002] Traditional soil leakage prevention technologies often employ geotextiles or soil mixing piles. However, geotextiles have limited strength and are easily damaged under long-term pressure; furthermore, the quality of soil mixing piles is difficult to guarantee, easily leading to local voids or uneven strength, thus increasing the risk of soil leakage. Centrifugal piles combined with insert plates can form an effective soil leakage prevention structure. This is because centrifugal piles have a dense internal structure and high strength, easily forming a retaining wall structure with high structural strength and stability with the insert plate, preventing soil leakage caused by pile deformation or damage, and effectively blocking the infiltration path of soil particles. In addition, centrifugal piles have good corrosion resistance and anti-aging properties, maintaining stable performance in underground environments for a long time.
[0003] However, the joint between centrifugal piles and insert plates often becomes a channel connecting the soil behind the pile and the soil in front of the pile. Once soil leakage occurs, the soil pressure balance on both sides of the pile wall is broken, and the pile wall is very easy to collapse due to stress imbalance, which seriously threatens the safety of the project and the stability of the surrounding environment. Utility Model Content
[0004] This utility model aims to overcome the problem of soil leakage at the connection between centrifugal piles and insert plates in the process of seepage prevention in the existing technology, and provides a centrifugal pile, insert plate, centrifugal pile assembly and retaining wall.
[0005] To achieve the above objectives, the present invention provides a centrifugal pile, comprising a body, a through hole, and at least one slot, wherein the through hole axially penetrates the body, and the slot is axially formed on the outer wall of one end of the body.
[0006] In one embodiment, the through hole is in communication with the slot.
[0007] In one embodiment, the outer edge length of the slot is greater than the inner edge length.
[0008] In one embodiment, half the length of the outer edge of the slot is less than the radius of the through hole.
[0009] In one embodiment, the axial length of at least one of the slots is greater than or equal to 20% of the length of the centrifugal pile.
[0010] In one embodiment, two slots are provided at the upper and lower ends of the main body, and the two slots are not connected.
[0011] In one embodiment, the two slots are located on the same side of the body.
[0012] In one embodiment, the radial cross-section of the centrifugal pile is circular.
[0013] In one embodiment, the radial cross-section of the centrifugal pile is polygonal.
[0014] In one embodiment, a reinforcing cage is provided inside the centrifugal pile. The reinforcing cage includes main bars, stirrups, and hook bars. The main bars are arranged at intervals, the stirrups are sleeved on the main bars, and the hook bars connect the main bars and the stirrups.
[0015] This utility model also provides an insert plate, which is used in connection with the centrifugal pile as described above. The insert plate is inserted into the slot and connected to the centrifugal pile, and the insert plate and the centrifugal pile are arranged in a front-to-back manner.
[0016] In one embodiment, the insert plate extends outward on both sides to form protrusions.
[0017] In one embodiment, the end of the protrusion extends outward to form a bend.
[0018] This utility model also provides a centrifugal pile assembly, including the centrifugal pile as described above, and an insert plate, wherein the insert plate is inserted into the slot and connected to the centrifugal pile, and the insert plate and the centrifugal pile are arranged in a front-to-back manner.
[0019] In one embodiment, at least two insert plates are installed in the same slot, with the outer end faces of the two insert plates abutting each other and the inner side faces of the insert plates abutting the outer edge of the slot.
[0020] In one embodiment, the insert plate extends outward on both sides to form protrusions, which are installed in the slot.
[0021] In one embodiment, the end of the protrusion extends outward to form a bend, which is installed in the through hole communicating with the slot.
[0022] This utility model also provides a retaining wall, including a plurality of centrifugal piles as described above, and an insert plate. The insert plate is inserted into the slot and connected to the centrifugal piles. The insert plate and the centrifugal piles are arranged in a front-to-back manner to form a centrifugal pile assembly. The centrifugal pile assembly and the centrifugal piles are connected end to end through the insert plate to form the retaining wall.
[0023] In summary, this utility model provides a centrifugal pile, insert plate, centrifugal pile assembly, and retaining wall. The centrifugal pile in this utility model has an axially formed slot on its outer wall and an axially penetrating through hole. By pre-installing the insert plate and engaging the protrusion with the slot, the impermeability at the structural joint is effectively improved, thereby optimizing the stability and soil leakage prevention performance of the structure, and better adapting to installation scenarios with asymmetric lateral pressure.
[0024] To make the above-mentioned features and advantages of the utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of a centrifugal pile assembly with insert plate according to Embodiment 1 of this utility model.
[0026] Figure 2 This is a top view of the centrifugal pile in Embodiment 1 of this utility model.
[0027] Figure 3 This is a schematic diagram of another centrifugal pile assembly with insert plate in Embodiment 1 of this utility model.
[0028] Figure 4 This is a first schematic diagram of the retaining wall in Embodiment 1 of this utility model.
[0029] Figure 5 This is a second schematic diagram of the retaining wall in Embodiment 1 of this utility model.
[0030] Figure 6 This is a third schematic diagram of the retaining wall in Embodiment 1 of this utility model.
[0031] Figure 7 This is the fourth schematic diagram of the retaining wall in Embodiment 1 of this utility model.
[0032] Figure 8 This is the fifth schematic diagram of the retaining wall in Embodiment 1 of this utility model.
[0033] Figure 9 This is a schematic diagram of the insert plate in Embodiment 2 of this utility model.
[0034] Figure 10 This is a schematic diagram of a retaining wall in Embodiment 2 of this utility model.
[0035] Figure label:
[0036] Centrifuge pile-1;
[0037] Body - 11; Through hole - 12; Slot - 13;
[0038] Upper slot -131; Lower slot -132;
[0039] Insert-2;
[0040] The convex part-21; the turning head-22. Detailed Implementation
[0041] To make the objectives and technical solutions of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0043] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Although the illustrations only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components, the form, quantity and proportion of each component can be arbitrarily changed in actual implementation, and the layout of the components may also be more complex.
[0044] Example 1
[0045] To overcome the problem of soil leakage at the pile-slab connection in existing technologies, this utility model improves the soil leakage prevention performance by changing the connection structure of the centrifugal pile and the insert plate. Figure 1 This is a schematic diagram of a centrifugal pile assembly with an insert plate according to the present invention, as shown below. Figure 1 As shown, the component includes a centrifugal pile 1 and at least two insert plates 2. The insert plates 2 are mounted on the centrifugal pile 1, and the insert plates 2 are arranged in a front-to-back configuration with respect to the centrifugal pile 1. The centrifugal pile 1 and the insert plates 2 can be connected by bolts, snap-fit, or other fixing methods.
[0046] The centrifugal pile 1 includes a body 11, a through hole 12 and at least one slot 13. The through hole 12 axially penetrates the body 11, and the slot 13 axially opens on the outer wall of the body 11. The through hole 12 and the slot 13 are interconnected.
[0047] Preferably, the through hole 12 is centrally located on the body 11. The through hole 12 can be circular, or other shapes can be selected depending on the actual situation. The through hole 12 can serve as a soil discharge channel to accommodate soil particles leaking from the connection point; it can also serve as a drainage and ventilation channel to avoid pore water pressure accumulation and air pocket effect, thus helping to ensure the stability of the pile and surrounding soil. Furthermore, the through hole 12 helps to disperse the forces acting on the centrifugal pile 1, avoiding pile failure caused by stress concentration, and improving the durability and reliability of the centrifugal pile 1. In addition, the through hole 12 can reduce the self-weight of the pile, saving materials and costs.
[0048] Furthermore, the radial cross-section of the body 11 can be circular, square, triangular, or other polygonal or irregular shapes depending on actual needs. A reinforcing cage is provided inside the body 11. The reinforcing cage includes several main bars, several stirrups, and several hook bars. The main bars are arranged at intervals in the same plane. The stirrups are fitted onto the main bars and are arranged at intervals along the length of the main bars. The hook bars are located at the ends of the stirrups and connect the main bars and the stirrups. The arrangement shape of the main bars and the shape of the stirrups correspond to the radial cross-sectional shape of the body 11. The stirrups are perpendicular to the main bars and can be fixed to the main bars by binding, welding, or other methods.
[0049] like Figure 2 As shown, the outer edge length L2 of the slot 13 is greater than the inner edge length L1 to form an oblique slot, facilitating demolding. In a specific embodiment, the outer edge length L2 is greater than 10 cm. Simultaneously, half of the outer edge length L2 is less than the through-hole radius r, i.e., 1 / 2L2 < r. The slot 13 is used to install the insert plate 2 and also provides operating space for the installation of the insert plate 2. Furthermore, after the centrifugal pile 1 is installed, the portion of the slot 13 where the insert plate 2 is not installed increases the contact area between the centrifugal pile 1 and the soil, thereby enhancing the friction and interlocking force between the centrifugal pile 1 and the soil, and improving the installation stability of the centrifugal pile 1.
[0050] Preferably, such as Figure 3As shown, two slots 13 are formed at the upper and lower ends of the outer wall of the body 11, and the two slots 13 are not connected. More preferably, the slots 13 are formed on the same side, and the axial length of at least one slot 13 is greater than or equal to 20% of the length of the centrifugal pile 1. The upper slot 131 can be used to install the insert plate 2, and the bottom surface of the upper slot 131 can directly contact the insert plate. The upper slot 131 provides vertical support for the insert plate 2, and vertically limits the insertion plate 2. The lower slot 132 can also be used to install the insert plate 2 to improve installation flexibility and structural versatility. In addition, the lower slot 132 also has the effect of balancing forces and saving materials.
[0051] At least two of the insert plates 2 are installed in the same slot 13, and the outer end faces of the two insert plates 2 abut against each other. Preferably, the inner side face of the insert plate 2 abuts against the outer edge of the slot 13.
[0052] The slot 13 and the insert plate 2 can be of equal or unequal length. When the slot 13 and the insert plate 2 are of equal length, the structure has better uniform stress distribution and overall integrity, and installation and fixing are simpler; when the slot 13 and the insert plate 2 are of unequal length, installation is more flexible and the use of materials is optimized.
[0053] The insert plate 2 extends outward from both sides to form protrusions 21. Preferably, the protrusions 21 are formed by extending from both sides of the insert plate 2 in a direction perpendicular to the plate surface, and the two protrusions 21 extend in the same direction. The protrusions 21 can abut against the inner wall of the slot 13. When adjacent insert plates 2 abut against each other, the protrusions 21 of two adjacent insert plates 2 are jointly fitted into the slot 13, and two protrusions 21 in the same slot 13 can also abut against each other.
[0054] like Figures 4 to 8As shown, the centrifugal pile assembly and the centrifugal pile 1 can be connected end-to-end by the insert plate 2 to form a retaining wall. When the insert plate 2 connects to an adjacent centrifugal pile 1, the slot 13 on the adjacent centrifugal pile 1 is placed on the same side, and the insert plate 2 is embedded on the same side of the centrifugal pile 1 to improve the lateral bearing capacity of the front end of the assembly, making it easier to adapt to installation scenarios with asymmetric lateral pressure. At the same time, several insert plates 2 abut against each other in sequence to form a continuous structure, which has the ability to adapt to soil deformation, prevent soil leakage, and waterproof. By placing the insert plate 2 in front and engaging the protrusion 21 with the slot 13, the soil leakage prevention capability of the structure is further improved. When soil seeps in along the gap at the connection of the insert plate 2, it will enter the through hole 12 to ensure the soil leakage prevention performance of the structure. Furthermore, the through hole 12 can serve as a drainage channel to drain water that seeps into the connection, ensuring the structure's impermeability. This avoids the cumbersome and costly process of applying adhesive strips or mortar to the connection between the centrifugal pile and the insert plate in traditional waterproofing methods, simplifying the installation steps and saving materials. It is worth noting that the radial cross-section of the centrifugal pile can be configured into different shapes according to actual site requirements and working conditions.
[0055] Example 2
[0056] To further improve the soil-proofing capability at the joints of the components and to make the components suitable for situations involving water or high seepage, such as... Figure 9 As shown, a bend 22 may be added to the end of the protrusion 21, and the bend 22 is a portion of the protrusion 21 extending outward. Figure 10 As shown, the elbow 22 is mounted inside the through hole 12. When two adjacent insert plates 2 come into contact, a snap-fit structure is formed between the adjacent elbows 22, improving the connection stability between the insert plates 2 and the centrifugal pile 1. Preferably, the elbow 22 can abut against the inside of the through hole 12 to meet sealing requirements.
[0057] In summary, this utility model provides a centrifugal pile, a insert plate, a centrifugal pile assembly, and a retaining wall. The centrifugal pile 1 has an axially oriented slot 13 and an axially penetrating through hole 12 on its outer wall. By pre-installing the insert plate 2 and engaging the protrusion 21 with the slot 13, the impermeability at the structural joint is effectively improved, thereby optimizing the structure's stability and soil leakage prevention performance, and better adapting to installation scenarios with asymmetric lateral pressure. Simultaneously, the through hole 12 can accommodate soil particles seeping in from the connection between the centrifugal pile 1 and the insert plate 2, and can also serve as a drainage channel to further ensure the structure's soil leakage prevention capability.
[0058] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.
Claims
1. A centrifugal pile, characterized in that, It includes a body, a through hole and at least one slot, the through hole axially penetrates the body, and the slot is axially formed on the outer wall of one end of the body; the outer edge length of the slot is greater than the inner edge length.
2. A centrifugal pile as described in claim 1, characterized in that, The through hole is connected to the slot.
3. A centrifugal pile as described in claim 1, characterized in that, Half the length of the outer edge of the slot is less than the radius of the through hole.
4. A centrifugal pile as described in claim 3, characterized in that, At least one of the slots has an axial length greater than or equal to 20% of the length of the centrifugal pile.
5. A centrifugal pile as described in claim 1, characterized in that, The main body has two slots at its upper and lower ends, and the two slots are not connected.
6. A centrifugal pile as described in claim 5, characterized in that, The two slots are located on the same side of the body.
7. A centrifugal pile as described in claim 1, characterized in that, The radial cross-section of the centrifugal pile is circular.
8. A centrifugal pile as described in claim 1, characterized in that, The radial cross-section of the centrifugal pile is polygonal.
9. A centrifugal pile as described in claim 1, characterized in that, The centrifugal pile is equipped with a steel cage, which includes main bars, stirrups and hook bars. The main bars are arranged at intervals, the stirrups are sleeved on the main bars, and the hook bars connect the main bars and the stirrups.
10. A plug-in board, characterized in that, The insert plate is used in connection with the centrifugal pile as described in any one of claims 1-9. The insert plate is inserted into the slot and connected to the centrifugal pile. The insert plate and the centrifugal pile are arranged in a front-to-back manner.
11. A plug-in plate as described in claim 10, characterized in that, The insert plate extends outward on both sides to form protrusions.
12. A plug-in plate as described in claim 11, characterized in that, The end of the protrusion extends outward to form a bend.
13. A centrifugal pile assembly, characterized in that, Includes a centrifugal pile as described in any one of claims 1-9, and a insert plate, the insert plate being inserted into the slot and connected to the centrifugal pile, the insert plate being arranged in a front-to-back configuration with respect to the centrifugal pile.
14. A centrifugal pile assembly as described in claim 13, characterized in that, The device includes at least two insert plates installed in the same slot, with the outer end faces of the two insert plates abutting each other and the inner side faces of the insert plates abutting the outer edge of the slot.
15. A centrifugal pile assembly as described in claim 14, characterized in that, The insert plate extends outward on both sides to form protrusions, which are installed in the slot.
16. A centrifugal pile assembly as described in claim 15, characterized in that, The end of the protrusion extends outward to form a bend, and the bend is installed in the through hole communicating with the slot.
17. A retaining wall, characterized in that, The device includes a plurality of centrifugal piles as described in any one of claims 1-9, and an insert plate, the insert plate being inserted into the slot and connected to the centrifugal pile, the insert plate and the centrifugal pile being arranged front to back to form a centrifugal pile assembly, the centrifugal pile assembly and the centrifugal pile being connected end to end through the insert plate to form the retaining wall.