Reinforced plastic steel sheet pile
By setting reinforcing bars and anchor bolts at the inside corners of plastic steel sheet piles, the problem of insufficient structural strength of traditional plastic steel sheet piles under complex geological conditions and high loads is solved, achieving higher resistance to deformation, cracking, and pull-out, thus ensuring project safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RUIHUI NEW MATERIALS (JIANGSU) CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional plastic steel sheet piles lack structural strength under complex geological conditions and heavy loads, making them prone to deformation and cracking. They are also prone to floating under high groundwater levels, affecting the safety and stability of the project.
Reinforcing bars are installed at the inside corners of the plastic steel sheet piles. A round tube structure is used and fixed by connecting bars. Combined with the design of screw rods and anchor rods, the structural thickness and pull-out resistance are enhanced, and the screw connection is used to prevent the anchor rods from floating.
It improves the bending and shear resistance of plastic steel sheet piles, extends their service life, and ensures stability and safety in complex geological conditions and high groundwater levels.
Smart Images

Figure CN224395531U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sheet piles, in particular to a reinforced plastic steel sheet pile. Background Technique
[0002] In many fields such as construction engineering, water conservancy engineering, and municipal engineering, plastic steel sheet piles are widely used in engineering structures such as foundation pit support and retaining cofferdams due to their advantages of light weight, corrosion resistance, and convenient construction. However, there are some deficiencies in the actual application of traditional plastic steel sheet piles:
[0003] In some engineering environments with complex geological conditions and large loads, the structural strength of traditional plastic steel sheet piles may not meet the engineering requirements. Especially in stress concentration areas such as internal corners, problems such as deformation and cracking are likely to occur, reducing the service life of plastic steel sheet piles and the safety of the project. When plastic steel sheet piles need to withstand a large uplift force, such as when the groundwater level is high and there is seepage, traditional plastic steel sheet piles are prone to floating due to the lack of effective anchoring measures, affecting the normal progress of the project and the safety and stability of the structure. Content of the Utility Model
[0004] The purpose of the utility model is to provide a reinforced plastic steel sheet pile to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A reinforced plastic steel sheet pile includes a plastic steel sheet pile body. On both sides of the plastic steel sheet pile body, a connecting strip one and a connecting strip two are integrally formed respectively. At the internal corner of the plastic steel sheet pile body, a reinforcing rib is fixed. A screw rod is screwed on the top of the reinforcing rib, and an anchor rod is fixed at the bottom end of the screw rod. The anchor rod penetrates through the reinforcing rib.
[0006] Preferably, the connecting strip one is in a "convex" shape strip, and the connecting strip two is in a "C" shape strip. The connecting strip two and the connecting strip one are matched. When two plastic steel sheet pile bodies are spliced end to end, the connecting strip one on one side of a plastic steel sheet pile body is inserted into the connecting strip two on one side of another plastic steel sheet pile body.
[0007] Preferably, a screw hole is opened at the top end of the connecting strip two, and a positioning hole is opened at the top end of the connecting strip one. A hand-tightening screw rod is screwed inside the screw hole. After the connecting strip one is inserted into the connecting strip two, the hand-tightening screw rod penetrates through the screw hole and then is inserted into the positioning hole.
[0008] Preferably, the reinforcing rib is in a round tube structure. A wire sleeve is fixed on the top surface of the reinforcing rib. The screw rod is inserted and screwed into the wire sleeve. The rod length of the anchor rod is greater than the rod length of the reinforcing rib.
[0009] Preferably, connecting ribs are fixed on the outer wall of the reinforcing rib, and the connecting ribs are fixed on the surface of the plastic steel sheet pile body.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] The reinforced plastic-steel sheet pile proposed in this utility model features reinforcing bars fixed at the internal corners of the sheet pile body. These reinforcing bars are circular tubular structures, with connecting bars on their outer walls fixed to the surface of the sheet pile body, increasing the structural thickness and strength at the internal corners. The reinforcing bars effectively disperse stress concentration at the internal corners, reducing deformation and cracking caused by stress concentration, thus improving the overall bending and shear resistance of the plastic-steel sheet pile. This allows it to better adapt to complex geological conditions and large loads, extending its service life.
[0012] A threaded rod is installed at the top of the reinforcing bar, and an anchor rod is fixed to the bottom of the threaded rod. The length of the anchor rod is greater than that of the reinforcing bar. When the anchor rod is needed, it is passed through the threaded sleeve and the reinforcing bar, and then the threaded rod is screwed downwards into the threaded sleeve, allowing the anchor rod to be inserted into the foundation. The threaded connection between the threaded sleeve and the threaded rod effectively prevents the anchor rod from bouncing upwards, thus providing reliable anchoring force for the plastic steel sheet pile and enhancing its pull-out resistance. In engineering environments with high groundwater levels or upward pull-out forces, the stability of the plastic steel sheet pile can be guaranteed, ensuring the normal progress of the project and the safety and reliability of the structure. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0015] Figure 3 This is a top view of the structure of this utility model;
[0016] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B;
[0017] Figure 5 for Figure 3 Sectional view of the structure at point AA;
[0018] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point C;
[0019] Figure 7 This is a schematic diagram of the structure after the two plastic steel sheet pile bodies of this utility model are connected;
[0020] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point D.
[0021] In the figure: plastic steel sheet pile body 1, connecting strip 1 2, connecting strip 2 3, screw hole 4, hand-tightening screw 5, positioning hole 6, reinforcing rib 7, threaded sleeve 8, screw rod 9, anchor rod 10, connecting rib 11. Specific implementation mode
[0022] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some embodiments of the present utility model, rather than all embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present utility model.
[0023] Please refer to Figures 1-8 , the present utility model provides a technical solution: a reinforced plastic steel sheet pile, including a plastic steel sheet pile body 1. On both sides of the plastic steel sheet pile body 1, a connecting strip 1 2 and a connecting strip 2 3 are integrally formed respectively. The connecting strip 1 2 is in the shape of a "convex" strip, and the connecting strip 2 3 is in the shape of a "C" strip. The connecting strip 2 3 and the connecting strip 1 2 are matched. When two plastic steel sheet pile bodies 1 are spliced end to end, the connecting strip 1 2 on one side of one plastic steel sheet pile body 1 is inserted into the connecting strip 2 3 on one side of the other plastic steel sheet pile body 1; a screw hole 4 is opened at the top of the connecting strip 2 3, and a positioning hole 6 is opened at the top of the connecting strip 1 2. A hand-tightening screw 5 is screwed inside the screw hole 4. After the connecting strip 1 2 is inserted into the connecting strip 2 3, the hand-tightening screw 5 passes through the screw hole 4 and then is inserted into the positioning hole 6; after two adjacent plastic steel sheet pile bodies 1 are assembled through the connecting strip 1 2 and the connecting strip 2 3, at this time, the positioning hole 6 and the hand-tightening screw 5 are communicated. After screwing the hand-tightening screw 5 through the positioning hole 6 and the hand-tightening screw 5, the connecting strip 1 2 is fixed in the connecting strip 2 3, so as to reinforce the connection between the connecting strip 1 2 and the connecting strip 2 3, that is, the two plastic steel sheet pile bodies 1 are firmly fixed after being spliced end to end.
[0024] A reinforcing rib 7 is fixed at the inner corner of the plastic steel sheet pile body 1. A screw rod 9 is screwed on the top of the reinforcing rib 7, and an anchor rod 10 is fixed at the bottom end of the screw rod 9. The anchor rod 10 penetrates through the reinforcing rib 7; the reinforcing rib 7 is in a circular tube structure, and a threaded sleeve 8 is fixed on the top surface of the reinforcing rib 7. The screw rod 9 is inserted and screwed in the threaded sleeve 8. The rod length of the anchor rod 10 is greater than the rod length of the reinforcing rib 7; a connecting rib 11 is fixed on the outer wall of the reinforcing rib 7, and the connecting rib 11 is fixed on the surface of the plastic steel sheet pile body 1. When the anchor rod 10 needs to be used, after the anchor rod 10 passes through the threaded sleeve 8 and the reinforcing rib 7, the screw rod 9 is screwed downward into the threaded sleeve 8. The anchor rod 10 is inserted into the base, and the threaded sleeve 8 and the screw rod 9 are screwed together to prevent the anchor rod 10 from bouncing upward.
[0025] Method of using reinforced plastic steel sheet piles: Two plastic steel sheet pile bodies 1 are spliced end-to-end, with the connecting strip 2 on one side of one plastic steel sheet pile body 1 inserted into the connecting strip 3 on the other side. The top of the connecting strip 3 has a screw hole 4, and the top of the connecting strip 2 has a positioning hole 6. A hand-tightening screw 5 is screwed into the screw hole 4. After the connecting strip 2 is inserted into the connecting strip 3, the hand-tightening screw 5 is screwed into the screw hole 4, passing through the screw hole 4 and then into the positioning hole 6. At this time, the positioning hole 6 and the hand-tightening screw 5 are connected. Tighten the hand-tightening screw 5 until it passes through the positioning hole 6, thus fixing the connecting strip 2 in the connecting strip 3, thereby strengthening the connection between the connecting strip 2 and the connecting strip 3, and firmly fixing the two plastic steel sheet pile bodies 1 after splicing end-to-end. Following the above method, multiple plastic steel sheet pile bodies 1 are spliced together to form the required retaining structure. Reinforcing ribs 7 are fixed at the internal corners of the plastic steel sheet pile bodies 1. The reinforcing bar 7 has a circular tube structure, with a threaded sleeve 8 fixed to its top surface and a connecting bar 11 fixed to its outer wall. The connecting bar 11 is fixed to the surface of the plastic steel sheet pile body 1. The anchor rod 10 is passed through the threaded sleeve 8 and the reinforcing bar 7, ensuring that the anchor rod 10 can pass smoothly through. The screw rod 9 is screwed downwards. Since the screw rod 9 is inserted and screwed into the threaded sleeve 8, as the screw rod 9 is screwed, the screw rod 9 will drive the anchor rod 10 to move downwards until the anchor rod 10 is inserted into the foundation. The screw rod 9 is continuously screwed until it is fully inserted into the threaded sleeve 8. The screwed relationship between the threaded sleeve 8 and the screw rod 9 prevents the anchor rod 10 from springing upwards, thereby providing additional reinforcement to the plastic steel sheet pile through the anchor rod 10.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A reinforced plastic-steel sheet pile, comprising a plastic-steel sheet pile body (1), wherein connecting strip one (2) and connecting strip two (3) are integrally formed on both sides of the plastic-steel sheet pile body (1), characterized in that: A reinforcing rib (7) is fixed at the inner corner of the plastic steel sheet pile body (1). A screw rod (9) is screwed at the top of the reinforcing rib (7). An anchor rod (10) is fixed at the bottom end of the screw rod (9), and the anchor rod (10) penetrates through the reinforcing rib (7).
2. The reinforced plastic-steel sheet pile according to claim 1, characterized in that: The first connecting strip (2) is in a "convex" shape strip, and the second connecting strip (3) is in a "C" shape strip. The second connecting strip (3) and the first connecting strip (2) are matched. When two plastic steel sheet pile bodies (1) are spliced end to end, the first connecting strip (2) on one side of one plastic steel sheet pile body (1) is inserted into the second connecting strip (3) on one side of the other plastic steel sheet pile body (1).
3. The reinforced plastic-steel sheet pile according to claim 1, characterized in that: A screw hole (4) is opened at the top end of the second connecting strip (3), and a positioning hole (6) is opened at the top end of the first connecting strip (2). A hand-tightening screw rod (5) is screwed inside the screw hole (4). After the first connecting strip (2) is inserted into the second connecting strip (3), the hand-tightening screw rod (5) penetrates through the screw hole (4) and then is inserted into the positioning hole (6).
4. The reinforced plastic-steel sheet pile according to claim 1, characterized in that: The reinforcing rib (7) is in a round tube structure. A wire sleeve (8) is fixed on the top surface of the reinforcing rib (7). The screw rod (9) is inserted and screwed into the wire sleeve (8), and the rod length of the anchor rod (10) is greater than the rod length of the reinforcing rib (7).
5. A reinforced plastic-steel sheet pile according to claim 1, characterized in that: A connecting rib (11) is fixed on the outer wall of the reinforcing rib (7), and the connecting rib (11) is fixed on the surface of the plastic steel sheet pile body (1).