A retaining structure for a sheet pile wall
By installing a reinforcement mechanism inside the pile and using the combination of electric push rods and compression columns, the friction between the pile and the soil is enhanced, which solves the instability problem of the pile under weak geological conditions and achieves the long-term stability of the pile.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SECOND ENG BUREAU LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-21
Smart Images

Figure CN224531730U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of retaining structure technology, specifically a retaining structure for a pile-slab wall. Background Technology
[0002] Pile-slab retaining structures are a type of structure used in geotechnical engineering to retain soil and prevent slope collapse or landslides. They mainly consist of piles and slabs. The piles are embedded in stable soil for support, and the slabs connect the piles to form continuous or spaced retaining surfaces. This structure features high rigidity, good support effect, and strong adaptability, and is widely used in railway and highway slope protection, foundation pit excavation support, and landslide control projects.
[0003] In modern geotechnical engineering construction, pile-slab wall retaining structures are widely used in road slope protection, deep foundation pit support and other projects because they can effectively prevent soil collapse and landslides. However, in the current traditional pile-slab wall structure, after the piles are inserted into the soil, they only rely on the natural friction between the pile and the soil to maintain fixation and do not have an active reinforcement function. Under soft soil, sandy soil and other weak geological conditions, the soil's restraining effect on the pile is limited. As the lateral pressure of the soil increases, the pile is prone to tilting, displacement or even pull-out, which makes it difficult to meet the long-term stability requirements of the project. Therefore, we propose a pile-slab wall retaining structure. Utility Model Content
[0004] The purpose of this utility model is to provide a support structure for a pile-slab wall to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved through the following technical solutions: A retaining structure for a pile-slab wall includes a pile body, wherein the inner cavity of the pile body is provided with a reinforcement mechanism for reinforcing the pile body.
[0006] The reinforcement mechanism includes a movable chamber inside the pile body. An electric push rod is fixedly installed on the top surface of the inner cavity of the movable chamber. A compression column is fixedly connected to the telescopic end of the electric push rod. Springs are fixedly connected to the four walls of the bottom inner cavity of the movable chamber. Circular holes are also opened through the four walls of the bottom inner cavity of the four movable chambers. The four circular holes are located at the inner rings of the four springs. Reinforcing rivets are fixedly connected to the ends of the four springs away from the walls of the movable chamber. The circumferential surfaces of the four reinforcing rivets are slidably fitted into the inner rings of the springs and the circular holes.
[0007] Preferably, each of the four reinforcing rivets has an oblique section on the side wall away from the movable compartment wall for use with the extrusion column, and the four oblique sections are in movable contact with the bottom end of the extrusion column.
[0008] Preferably, the circular holes, springs, reinforcing rivets, and beveled sections are all provided in four sets at equal intervals.
[0009] Preferably, a handle is fixedly connected to one side wall panel of the pile body.
[0010] Preferably, the two outer walls of the pile body that are far apart from each other are fixedly connected with snap-fit frames. The wall plates of the two snap-fit frames are provided with second threaded holes. The insertion slots of the two snap-fit frames are movably inserted with baffles. The bottom of the baffles is provided with multiple drainage holes for drainage. The two sides of the baffles are provided with first threaded holes for cooperating with the second threaded holes.
[0011] Preferably, a threaded post is threaded into the first threaded hole and the second threaded hole, and a nut is threaded into the threaded end of the threaded post.
[0012] Preferably, the first threaded hole, the second threaded hole, the threaded post, and the nut are all provided in five sets at equal intervals.
[0013] Preferably, multiple piles and baffles are provided, and multiple piles and baffles are used in conjunction.
[0014] The beneficial effects of this utility model are: 1. This utility model, through the setting of spring, reinforcing rivet and round hole, inserts the pile into the ground with the round hole completely located in the soil. By adjusting the extension end of the electric push rod, the compression column is moved. The compression column moves down and contacts the inclined section, thereby compressing the spring to contract and push the reinforcing rivet out of the round hole and insert it into the ground. The friction between the reinforcing rivet and the underground soil can be used to further reinforce the pile, enhance the stability of the pile, and meet the long-term stability requirements of the project.
[0015] 2. This utility model, through the setting of baffles and snap-fit grooves, inserts multiple baffles into multiple snap-fit frames, inserts threaded posts into the first threaded hole and the second threaded hole, and then turns the nut from the threaded end of the threaded post. By using the compression between the threaded post and the nut, the baffles can be fixed in the snap-fit frame, making it easy to assemble the device into a suitable size to block the soil. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of a support structure for a pile-slab wall according to this utility model. Figure 2 This is a structural diagram showing the overall disassembled structure of this utility model; Figure 3 This is a schematic diagram of the overall and partial structure of this utility model; Figure 4 This is a cross-sectional structural schematic diagram of the reinforcement mechanism of this utility model; Figure 5 This is a utility model Figure 4 Enlarged structural diagram at point B; Figure 6 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0017] The following labels are used in the attached diagram: 1. Pile body; 2. Handle; 3. Reinforcing mechanism; 31. Movable chamber; 32. Electric push rod; 33. Extrusion column; 34. Circular hole; 35. Spring; 36. Reinforcing rivet; 37. Inclined section; 4. Snap-fit frame; 5. Baffle; 6. Drainage hole; 7. First threaded hole; 8. Second threaded hole; 9. Threaded column; 10. Nut. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0019] like Figures 1-6 As shown, this is an embodiment of the present invention. This embodiment provides a support structure for a pile-slab wall, including a pile body 1, and a reinforcement mechanism 3 for reinforcing the pile body 1 is provided in the inner cavity of the pile body 1. Specifically, in this embodiment, the reinforcement mechanism 3 includes a movable chamber 31 opened inside the pile body 1. An electric push rod 32 is fixedly installed on the top surface of the inner cavity of the movable chamber 31. A compression column 33 is fixedly connected to the telescopic end of the electric push rod 32. Springs 35 are fixedly connected to the four walls of the bottom inner cavity of the movable chamber 31. Circular holes 34 are also opened through the four walls of the bottom inner cavity of the four movable chambers 31. The four circular holes 34 are respectively located at the inner ring of the four springs 35. 5. Each end of the four reinforcing rivets 36 is fixedly connected to the side away from the wall of the movable chamber 31. The circumferential surfaces of the four reinforcing rivets 36 are slidably fitted into the inner ring of the spring 35 and the round hole 34. Each side wall of the four reinforcing rivets 36 away from the wall of the movable chamber 31 is provided with a beveled section 37 for use with the extrusion column 33. The four beveled sections 37 are movably abutted against the bottom end of the extrusion column 33. The round hole 34, the spring 35, the reinforcing rivets 36 and the beveled sections 37 are all equidistantly arranged in four sets.
[0020] In practice, by inserting the pile 1 into the ground with the circular hole 34 completely in the soil, the extrusion column 33 is moved by adjusting the telescopic end of the electric push rod 32. The extrusion column 33 moves down and contacts the inclined section 37, thereby compressing the spring 35 to contract and push the reinforcing rivet 36 out of the circular hole 34 and insert it into the ground. The friction between the reinforcing rivet 36 and the underground soil can be used to further reinforce the pile 1 and enhance its stability. In this embodiment, the extrusion column 33 is raised by the telescopic end of the electric push rod 32. The extrusion column 33 moves away from the reinforcing rivet 36, and the spring 35 rebounds, which can drive the reinforcing rivet 36 to retract, making it convenient to use.
[0021] As a technical optimization of this utility model, a handle 2 is fixedly connected to the outer side wall panel of the pile body 1.
[0022] In practice, the handle 2 on the top of the pile 1 is used to easily insert the pile 1 into the ground or remove the pile 1 from the ground.
[0023] As a technical optimization of this utility model, the two outer walls of the pile body 1 that are far apart from each other are fixedly connected with snap-fit frames 4. The wall plates of the two snap-fit frames 4 are provided with second threaded holes 8. The insertion slots of the two snap-fit frames 4 are movably inserted with baffles 5. The bottom of the baffles 5 is provided with multiple drainage holes 6 for drainage. The two sides of the baffles 5 are provided with first threaded holes 7 for cooperating with the second threaded holes 8. The first threaded holes 7 and the second threaded holes 8 are threadedly fitted with threaded posts 9. The threaded end of the threaded posts 9 is threadedly fitted with nuts 10. The first threaded holes 7, the second threaded holes 8, the threaded posts 9 and the nuts 10 are all equidistantly arranged in five sets. There are multiple pile bodies 1 and baffles 5. Multiple pile bodies 1 are used in cooperation with baffles 5.
[0024] In practice, by inserting multiple baffles 5 into multiple snap-fit frames 4, inserting threaded posts 9 into the first threaded hole 7 and the second threaded hole 8, and then turning the nut 10 from the threaded end of the threaded post 9, the baffles 5 can be fixed in the snap-fit frame 4 by the compression between the threaded post 9 and the nut 10, so that the device can be spliced into a suitable size to block the soil.
[0025] In use, this utility model involves inserting multiple baffles 5 into multiple snap-fit frames 4, inserting threaded posts 9 into the first threaded holes 7 and the second threaded holes 8, and then turning the nut 10 onto the threaded end of the threaded post 9. The baffles 5 are fixed within the snap-fit frames 4 by the compression between the threaded post 9 and the nut 10. The device is then assembled to a suitable size. The pile body 1 of the device is then inserted into the ground, ensuring the round hole 34 on the pile body 1 is completely submerged. The extension and retraction end of the electric push rod 32 is adjusted to move the compression post 33. The compression post 33 moves downwards and contacts the inclined section 37, causing the compression spring 35 to contract and push the reinforcing rivet 36 out of the round hole 34 and into the ground, further reinforcing the pile body 1. This device also blocks the soil. When the device needs to be removed, the extension and retraction end of the electric push rod 32 is used to raise the compression post 33, moving it away from the reinforcing rivet 36. The spring 35 then rebounds, causing the reinforcing rivet 36 to retract, and the device is then pulled out.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A retaining structure for a pile-slab wall, comprising piles (1), characterized in that, The inner cavity of the pile body (1) is provided with a reinforcement mechanism (3) for reinforcing the pile body (1); The reinforcement mechanism (3) includes: An active chamber (31) is set inside the pile body (1). An electric push rod (32) is fixedly installed on the top surface of the inner cavity of the active chamber (31). An extrusion column (33) is fixedly connected to the telescopic end of the electric push rod (32). The bottom inner cavity of the movable chamber (31) is fixedly connected with springs (35) on all four sides of the wall panel. The bottom inner cavity of the four movable chambers (31) is also provided with a circular hole (34). The four circular holes (34) are located at the inner ring of the four springs (35). The end of the four springs (35) away from the wall of the movable chamber (31) is fixedly connected with a reinforcing rivet (36). The circumferential surface of the four reinforcing rivets (36) is slidably sleeved in the inner ring of the spring (35) and the circular hole (34).
2. The retaining structure for a pile-slab wall according to claim 1, characterized in that, The four reinforcing rivets (36) are provided with a beveled section (37) on the side wall away from the active compartment (31) for use with the extrusion column (33). The four oblique sections (37) are in contact with the bottom of the extrusion column (33).
3. The retaining structure for a pile-slab wall according to claim 2, characterized in that, The circular hole (34), spring (35), reinforcing rivet (36) and oblique section (37) are all provided in four sets at equal intervals.
4. The retaining structure for a pile-slab wall according to claim 1, characterized in that, A handle (2) is fixedly connected to one side wall panel of the pile body (1).
5. The retaining structure for a pile-slab wall according to claim 4, characterized in that, The two outer walls of the pile body (1) that are far apart from each other are fixedly connected with snap-fit frames (4). The wall plates of the two snap-fit frames (4) are provided with second threaded holes (8). The insertion slots of the two snap-fit frames (4) are movably connected with baffles (5). The bottom of the baffle (5) is provided with multiple drainage holes (6) for drainage, and both sides of the baffle (5) are provided with first threaded holes (7) for use in conjunction with the second threaded hole (8).
6. The retaining structure for a pile-slab wall according to claim 5, characterized in that, The first threaded hole (7) and the second threaded hole (8) are threaded with threaded posts (9); The threaded end of the threaded column (9) is threaded with a nut (10).
7. The retaining structure for a pile-slab wall according to claim 6, characterized in that, The first threaded hole (7), the second threaded hole (8), the threaded post (9) and the nut (10) are all provided in five sets at equal intervals.
8. The retaining structure for a pile-slab wall according to claim 5, characterized in that, Multiple piles (1) and baffles (5) are provided, and multiple piles (1) and baffles (5) are used in conjunction.