Prestressed concrete sheet pile
By setting side limit components and port limit structures on concrete slab piles, forming mortise and tenon structures and joint connections, the problem of unstable sheet pile connections in the prior art is solved, and the stability of water-retaining walls is improved and ease of construction.
Patent Information
- Application Number
- CN202421257093.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-06-04
AI Technical Summary
When used as a retaining wall, the connection of existing concrete slab piles is not stable enough and easily separated when vertically penetrated into the soil, and the full-length tight seal cannot be achieved, resulting in mud and sand embedded in the notch, affecting structural stability.
Prestressed concrete slab piles are used to form hollow structures and mortise and tenon structures by setting side limiting components on the sides, and the port limiting structure is added to achieve engaging and connection, enhancing the stability of adjacent slab piles.
It improves the degree of stable connection between concrete slab piles and the stability of the overall structure, ensures that it is not easy to separate when vertically penetrated into the soil, and enhances the stability and convenience of the water-retaining wall.
Smart Images
Figure CN222362471U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building pile structures, and more specifically to a prestressed concrete sheet pile. Background Art
[0002] Sheet piles are sheet piles driven (vibrated) into the foundation to resist horizontal pressure and water pressure. Sheet piles are mostly used for cofferdams or anti-seepage in water conservancy projects. Sheet piles are generally wooden boards with concave and convex grooves on both sides, or grooved steel plates with locks on both sides. They are sunk into the soil in rows as temporary walls to retain water and soil. Reinforced concrete sheet piles can also be used in the construction of deeper pits and underground pipelines as permanent retaining structures.
[0003] When concrete sheet piles in the prior art are used as retaining walls, they often need to be stacked and connected layer by layer, and the connection between them is only formed by the groove and tenon on the side of the sheet pile to form a fixed connection. However, this connection is only a side connection and is relatively simple, and it cannot be tightly sealed along the entire length. As a result, when the sheet piles are vertically driven into the soil, small pieces of mud and sand are often embedded in the grooves, forcing the piles to gradually separate. In view of this, we propose prestressed concrete sheet piles. Utility Model Content
[0004] Technical issues to be solved
[0005] The purpose of the utility model is to provide a prestressed concrete sheet pile to solve the problems raised in the above background technology.
[0006] Technical Solution
[0007] Prestressed concrete sheet piles include: concrete sheet piles, side limit assemblies are fixedly provided on the sides of the concrete sheet piles, the side limit assemblies can contact with the side limit assemblies on the sides of another concrete sheet pile, the two side limit assemblies fit together to form a hollow structure, the hollow structure is inserted with limit plates everywhere to form a mortise and tenon structure, so as to improve the stability of the connection between adjacent concrete sheet piles, port limit structures are provided at both ends of the concrete sheet piles, the adjacent concrete sheet piles at both ends can be snap-connected by the port limit structures, and the multiple concrete sheet piles after snap-connection can be snap-connected and limited into a whole by the positioning plate to increase the stability between adjacent concrete sheet piles.
[0008] As an optional scheme of the technical solution of the utility model document, the side limit assembly includes a first limit member, a second limit member, a third limit member and a fourth limit member, the first limit member and the second limit member are located on one side of the concrete sheet pile, the third limit member and the fourth limit member are located on the other side of the concrete sheet pile, the first limit member and the third limit member are arranged in a symmetrical state, and the second limit member and the fourth limit member are arranged in a symmetrical state.
[0009] As an optional solution of the technical solution of the utility model document, the first limiter and the third limiter are both composed of a plurality of top plates, and the plurality of top plates at the first limiter and the plurality of top plates at the third limiter are arranged in a staggered state;
[0010] The second position-limiting member and the fourth position-limiting member are both composed of a plurality of abutment plates, and the plurality of abutment plates at the second position-limiting member and the plurality of abutment plates at the fourth position-limiting member are arranged in a staggered state.
[0011] As an optional solution of the technical solution of the utility model document, the concrete sheet pile is provided with steel bars inside, concrete is poured outside the steel bars, top plates are symmetrically fixedly provided on both sides of the concrete sheet pile, and abutment plates are fixedly provided below the top plates;
[0012] The top end of the abutment plate is configured as an inclined surface from bottom to top, and the bottom end of the top plate is configured as an inclined surface from top to bottom.
[0013] As an optional solution of the technical solution of the utility model document, the port limiting structure includes a limiting protrusion and a limiting groove, one end of the concrete sheet pile is provided with a limiting groove, and the other end of the concrete sheet pile is fixedly connected to the limiting protrusion;
[0014] The outer dimension of the limiting protrusion is equal to the inner dimension of the limiting groove.
[0015] As an optional solution of the technical solution of the utility model, the positioning plate is composed of a clamping block and a connecting block, the clamping block is clamped and connected with the limiting groove, the top of the clamping block is fixedly connected with a connecting block, and the connecting block is fixedly connected to another clamping block.
[0016] Beneficial Effects
[0017] Compared with the prior art, the advantages of the present invention are:
[0018] The utility model arranges the side limit components so that when two adjacent concrete sheet piles are assembled, the side limit components can contact each other, and the two side limit components are staggered and overlapped with each other to form a hollow structure, and then the hollow structure is inserted with positioning plates everywhere, and the trapezoidal positioning plates and the hollow structure together form a mortise and tenon structure, so as to achieve the purpose of improving the degree of stable connection between adjacent concrete sheet piles, and through the arrangement of the port limit structure, the multiple concrete sheet piles after the card-jointed connection can form a whole, and the stability between the adjacent concrete sheet piles is further improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the assembly state of a prestressed concrete sheet pile disclosed in a preferred embodiment of the utility model;
[0020] Figure 2 This is a schematic diagram of the overall structure of a prestressed concrete sheet pile disclosed in a preferred embodiment of the utility model;
[0021] Figure 3 It is a top cross-sectional schematic diagram of a prestressed concrete sheet pile disclosed in a preferred embodiment of the utility model;
[0022] Figure 4 A schematic side cross-sectional view of a prestressed concrete sheet pile disclosed in a preferred embodiment of the utility model;
[0023] Explanation of the numbers in the figure: 1. Concrete sheet pile; 11. Rebar; 12. Top plate; 13. Abutment plate; 2. Side limit assembly; 21. First limit member; 22. Second limit member; 23. Third limit member; 24. Fourth limit member; 3. Limit plate; 4. Port limit structure; 41. Limiting protrusion; 42. Limiting groove; 5. Positioning plate. DETAILED DESCRIPTION
[0024] refer to Figure 1-4 , a technical solution proposed.
[0025] like Figure 1 As shown, the water-retaining and earth-retaining wall structure is composed of a plurality of stacked and connected concrete sheet piles 1, wherein the concrete sheet piles 1 are formed by weaving a skeleton of steel bars 11 and then pouring concrete;
[0026] like Figure 2 and Figure 3 As shown, two side limit assemblies 2 are symmetrically arranged on both sides of the concrete sheet pile 1. The side limit assembly 2 on one side is composed of a first limit member 21 and a second limit member 22, and the side limit assembly 2 on the other side is composed of a third limit member 23 and a third limit member 23. The first limit member 21 and the third limit member 23 are located at the top, and the second limit member 22 and the fourth limit member 24 are located at the bottom. Figure 3 and Figure 4 As shown, the first limiting member 21 and the third limiting member 23 above are both composed of a plurality of top plates 12, and the plurality of top plates 12 at the first limiting member 21 and the plurality of top plates 12 at the third limiting member 23 are distributed in a staggered state. The first limiting member 21 at one concrete sheet pile 1 can be inserted into the gap of the third limiting member 23 at another concrete sheet pile 1, so that the first limiting member 21 and the third limiting member 23 form a closed rectangular plate. The snap connection between the first limiting member 21 and the third limiting member 23 increases the friction between the two concrete sheet piles 1. Figure 4 and Figure 3As shown, the second limiting member 22 and the fourth limiting member 24 at the bottom are both composed of a plurality of abutment plates 13, and the plurality of abutment plates 13 at the second limiting member 22 and the plurality of abutment plates 13 at the fourth limiting member 24 are distributed in a staggered state, and the second limiting member 22 at one concrete sheet pile 1 can be inserted into the gap of the fourth limiting member 24 at another concrete sheet pile 1, so that the second limiting member 22 and the fourth limiting member 24 form a closed rectangular plate, and the top plates 12 are staggered and overlapped with each other, and the abutment plates 13 are staggered and overlapped with each other. When the concrete sheet pile 1 is vertically inserted into the pit, in addition to the friction generated by the close contact between the plurality of top plates 12 and the abutment plates 13, each top plate 12 bears the pressure from another page for each page, which increases the positive pressure between each other, thereby increasing the friction, making the superposition effect of the friction very significant;
[0027] like Figure 4 As shown, the top end of the abutment plate 13 is set as an inclined surface from bottom to top, the bottom end of the top plate 12 is set as an inclined surface from top to bottom, and one side of the inclined surface of the top plate 12 is set as a plane. When two adjacent concrete sheet piles 1 contact each other, the side limit assembly 2 on one side of one concrete sheet pile 1 can contact the side limit assembly 2 of the other concrete sheet pile 1, and the two side limit assemblies 2 fit together to form a hollow structure. The hollow structure is a trapezoidal groove with a wide inside and a narrow outside, which is used as a mortise. After the two concrete sheet piles 1 are engaged with each other to form a trapezoidal groove, the pit The mud in the concrete sheet pile 1 escapes from the trapezoidal groove under the pressure of gravity, so that the concrete sheet pile 1 can fit completely with the pit, and then the limiting plate 3 is inserted into the trapezoidal groove. The limiting plate 3 is set as a trapezoidal plate and inserted into the trapezoidal groove as a tenon to form a mortise and tenon fixing structure, which effectively limits the twisting of the first limiting member 21 and the second limiting member 22 in all directions, ensuring its stability. At the same time, it can also withstand a large load and allow a certain degree of deformation. It can offset part of the energy through deformation under the action of external forces such as earthquakes, and further improve the stability of the overall structure.
[0028] The two ends of the concrete sheet pile 1 are provided with a port limiting structure 4, which is composed of a limiting convex block 41 and a limiting groove 42. The limiting convex block 41 of the bottom concrete sheet pile 1 can be directly inserted into the pit. The size of the limiting convex block 41 is smaller than the size of the bottom end of the concrete sheet pile 1. According to the principle that the smaller the area, the greater the pressure, the limiting convex block 41 can be more easily inserted into the pit, thereby improving the convenience of building a water retaining wall. The outer size of the limiting convex block 41 is equal to the inner size of the limiting groove 42. The block 41 can also be inserted into the limiting groove 42 of another concrete sheet pile 1 to increase the size of the wall. The limiting groove 42 at the edge of the wall is connected through the positioning plate 5. The positioning plate 5 is composed of a clamping block and a connecting block. The clamping block is clamped and connected to the limiting groove 42. A connecting block is fixedly connected to the top of the clamping block. The connecting block is fixedly connected to another clamping block, so that the multiple concrete sheet piles 1 after the clamping connection can be clamped and limited into a whole through the positioning plate 5, thereby further improving the stability between adjacent concrete sheet piles 1.
[0029] When constructing a water-retaining and earth-retaining wall project in a pit, the staff first inserts the concrete sheet pile 1 into the pit. The limiting protrusion 41 at the bottom end of the concrete sheet pile 1 has a small force-bearing area and can be easily inserted into the pit under high pressure. Then, another concrete sheet pile 1 is clamped on the side of the inserted concrete sheet pile 1, and the first limiting piece 21 and the third limiting piece 23 between the two believed concrete sheet piles 1 are clamped, and the second limiting piece 22 and the fourth limiting piece 24 are clamped to form a hole. Then, the limiting plate 3 is inserted into the hole to form a mortise and tenon structure to ensure the stability of the connection relationship between adjacent concrete sheet piles 1. Then, the concrete sheet pile 1 is superimposed on the top of the concrete sheet pile 1 as needed, and the two ends of the concrete sheet pile 1 are clamped and limited by the limiting protrusion 41 and the limiting groove 42 until the wall reaches the construction size requirement. The staff installs the positioning plate 5 at the edge of the concrete sheet pile 1, and the positioning plate 5 is clamped with the limiting groove 42 at the edge, so that the adjacent concrete sheet piles 1 form a whole, which effectively improves the stability of the water-retaining and earth-retaining wall project.
[0030] Although examples of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. Prestressed concrete sheet piles, characterized in that: include: A concrete sheet pile (1), wherein a side limit assembly (2) is fixedly provided on a side of the concrete sheet pile (1), the side limit assembly (2) being capable of contacting a side limit assembly (2) on the side of another concrete sheet pile (1), the two side limit assemblies (2) being fitted together to form a hollow structure, the hollow structure being inserted with limit plates (3) at various locations to form a mortise and tenon structure, thereby improving the stability of the connection between adjacent concrete sheet piles (1), the concrete sheet pile (1) being provided with end limit structures (4) at both ends, the adjacent concrete sheet piles (1) at both ends being capable of being snap-fitted and connected via the end limit structures (4), and the plurality of concrete sheet piles (1) after being snap-fitted and connected can be snap-fitted and limited into a whole via a positioning plate (5), thereby increasing the stability between adjacent concrete sheet piles (1).
2. The prestressed concrete sheet pile according to claim 1, characterized in that: The side limit assembly (2) comprises a first limit member (21), a second limit member (22), a third limit member (23) and a fourth limit member (24); the first limit member (21) and the second limit member (22) are located on one side of the concrete sheet pile (1); the third limit member (23) and the fourth limit member (24) are located on the other side of the concrete sheet pile (1); the first limit member (21) and the third limit member (23) are symmetrically arranged; and the second limit member (22) and the fourth limit member (24) are symmetrically arranged.
3. The prestressed concrete sheet pile according to claim 2, characterized in that: The first limiting member (21) and the third limiting member (23) are both composed of a plurality of top plates (12), and the plurality of top plates (12) at the first limiting member (21) and the plurality of top plates (12) at the third limiting member (23) are arranged in a staggered state; The second limiting member (22) and the fourth limiting member (24) are both composed of a plurality of abutment plates (13), and the plurality of abutment plates (13) at the second limiting member (22) and the plurality of abutment plates (13) at the fourth limiting member (24) are arranged in a staggered state.
4. The prestressed concrete sheet pile according to claim 1, characterized in that: The concrete sheet pile (1) is provided with steel bars (11) inside, and concrete is poured outside the steel bars (11). Top plates (12) are symmetrically fixedly provided on both sides of the concrete sheet pile (1), and abutment plates (13) are fixedly provided below the top plates (12); The top end of the abutment plate (13) is arranged as an inclined surface from bottom to top, and the bottom end of the top plate (12) is arranged as an inclined surface from top to bottom.
5. The prestressed concrete sheet pile according to claim 1, characterized in that: The port limiting structure (4) comprises a limiting protrusion (41) and a limiting groove (42); one end of the concrete sheet pile (1) is provided with the limiting groove (42), and the other end of the concrete sheet pile (1) is fixedly connected to the limiting protrusion (41); The outer dimension of the limiting protrusion (41) is equal to the inner dimension of the limiting groove (42).
6. The prestressed concrete sheet pile according to claim 1, characterized in that: The positioning plate (5) is composed of a clamping block and a connecting block, the clamping block is clamped and connected to the limiting groove (42), the top end of the clamping block is fixedly connected to the connecting block, and the connecting block is fixedly connected to another clamping block.