Double-locking-opening self-waterproof steel sheet pile
By installing a double-lock structure and a water-slow-expanding sealing strip on the sheet piles, the problem of poor waterproofing of Larssen sheet piles was solved, achieving a more efficient waterproofing effect and reducing construction costs.
Patent Information
- Application Number
- CN202520541914.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing Larssen sheet piles have poor waterproofing properties, especially in complex geological conditions or areas adjacent to existing buildings, where localized leakage is prone to occur at the interlocking points. Furthermore, the construction cost of adding high-pressure jet grouting piles on the periphery is high and the coordination is poor.
The design employs a double-lock structure and a water-slow-expanding sealing strip. By setting two locking rings and a locking back ring on the steel sheet pile body, and inserting a water-slow-expanding sealing strip between the two side plates during connection, a double-lock self-waterproofing structure is formed.
This enhances the waterproofing effect of sheet pile connections, reduces the possibility of water leakage, and improves construction efficiency and cost-effectiveness.
Smart Images
Figure CN223951752U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a foundation pit support structure technical field especially relates to a double lock mouth self -waterproof steel sheet pile. BACKGROUND
[0002] In the field of building engineering deep foundation pit support, Larsen steel sheet pile is widely used as a temporary enclosure structure, which forms a continuous board wall through lock mouth occlusion to realize soil support and waterproof function. However, the waterproof of Larsen steel sheet pile in the prior art mainly depends on the natural occlusion of single lock mouth, but the waterproofness of such structure is poor, especially in complex geology or adjacent existing building area, when the underground water pressure rises, local leakage even sand gushing phenomenon is easy to occur at the lock mouth. The existing engineering mostly adopts the high pressure rotary jet pile outside to add as a supplementary waterproof layer, although it can form a water stop curtain, but there are problems of high construction cost, long period and poor synergy with steel sheet pile, which cannot solve the problem of local leakage of lock mouth.
[0003] Therefore, a double lock mouth self -waterproof steel sheet pile is provided. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a double lock mouth self -waterproof steel sheet pile, which aims at solving or improving at least one of the above technical problems.
[0005] To achieve the above purpose, the utility model provides the following scheme: the utility model provides a double lock mouth self -waterproof steel sheet pile, which comprises:
[0006] The steel sheet pile body has two side plates parallel to each other on the steel sheet pile body;
[0007] The lock structure comprises two lock rings and two lock back rings, the two lock rings are respectively fixedly connected on the two sides of one of the side plates, and the two lock back rings are respectively fixedly connected on the two sides of the other side plate;
[0008] The water -slow -expanding water stop strip is arranged on the outside of one of the side plates, when the two steel sheet pile bodies are connected with each other, the two lock back rings on any one of the steel sheet pile bodies are respectively inserted into the two lock rings on the other steel sheet pile body, and the water -slow -expanding water stop strip is clamped between the two opposite side plates on the two steel sheet pile bodies.
[0009] Preferably, the outside wall of the side plate fixedly connected with the lock ring is provided with a placing groove, and the water -slow -expanding water stop strip is placed in the placing groove.
[0010] Preferably, the cross section of the placing groove is trapezoidal, and the water -slow -expanding water stop strip has a gap between the two sides and the two sides of the placing groove.
[0011] Preferably, when the two steel sheet pile bodies are connected to each other, the two opposite side plates of the two steel sheet pile bodies are in contact, and the water-slowly-swelling waterstop is clamped between the side plates and the placing groove.
[0012] Preferably, the bottom of the placing groove is fixedly connected with a protection block, and the water-slowly-swelling waterstop is placed above the protection block.
[0013] Preferably, the steel sheet pile body comprises a web plate and two side plates, and the two side plates are fixedly connected at two ends of the web plate to form an H-shaped structure.
[0014] Preferably, the ring mouth grooves of the two lock rings on the side plate are located at an end of the side plate away from the web plate, the cross sections of the two ring mouth grooves are in an eight-like shape, the lock back rings are inclined plates, the lock back rings are located at an end of the side plate close to the web plate, the two lock back rings on the side plate are in an eight-like shape, and the lock back rings are inserted into the ring mouth grooves of the lock rings.
[0015] The utility model discloses the following technical effects: two lock rings and two lock back rings are arranged on the side plates of the steel sheet pile body respectively, and a water-slowly-swelling waterstop is arranged on one of the side plates, when two steel sheet pile bodies are connected to each other, the two lock back rings on the steel sheet pile body are inserted into the two lock rings on the other steel sheet pile body respectively, forming a double-lock structure, which strengthens the connection and waterproof effect between the steel sheet piles, and the water-slowly-swelling waterstop is clamped between the two opposite side plates of the two steel sheet pile bodies, and when water seeps in, the water-slowly-swelling waterstop will expand to seal the water seepage gap. Through the two lock rings and the water-slowly-swelling waterstop arranged inside, the application greatly reduces the situation that water seeps in the connection part between the piles. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings constituting a part of the present application are used to provide further understanding of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:
[0017] Figure 1 It is a structural schematic view of the utility model;
[0018] Figure 2 It is an axonometric view of the steel sheet pile body and the lock structure in the utility model;
[0019] Figure 3 It is an axonometric view of the lock state of the plurality of steel sheet piles in the utility model;
[0020] Figure 4 It is a structural schematic view of the lock state of the plurality of steel sheet piles in the utility model.
[0021] In the figure: 1, steel sheet pile body; 11, side plate; 12, web; 13, placing groove; 14, protection block;
[0022] 2, lock structure; 21, lock ring; 22, lock back ring;
[0023] 3, slow expansion waterstop when encountering water. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.
[0026] With reference to Figures 1-4 The utility model provides a kind of double-locking self-waterproof steel sheet pile, comprising:
[0027] Steel sheet pile body 1, steel sheet pile body 1 has two side plates 11 that are parallel to each other on it;
[0028] Lock structure 2 includes two lock rings 21 and two lock back rings 22, two lock rings 21 are respectively fixedly connected on the two sides of one side plate 11, and two lock back rings 22 are respectively fixedly connected on the two sides of another side plate 11;
[0029] Slow expansion waterstop 3 when encountering water is arranged on the outside of one side plate 11, when two steel sheet pile bodies 1 are connected with each other, two lock back rings 22 on any steel sheet pile body 1 are respectively inserted into two lock rings 21 on another steel sheet pile body 1, and slow expansion waterstop 3 when encountering water is clamped between the two opposite side plates 11 on two steel sheet pile bodies 1.
[0030] In some optional embodiments, placing groove 13 is formed on the outer wall of side plate 11 fixedly connected with lock ring 21, and slow expansion waterstop 3 when encountering water is placed in placing groove 13.
[0031] In some optional embodiments, the cross section of placing groove 13 is trapezoidal, and there is a gap between the two sides of slow expansion waterstop 3 when encountering water and the two sides of placing groove 13.
[0032] In some optional embodiments, when two steel sheet pile bodies 1 are connected with each other, the two opposite side plates 11 on two steel sheet pile bodies 1 are in contact, and slow expansion waterstop 3 when encountering water is clamped between side plate 11 and placing groove 13.
[0033] In some optional embodiments, the bottom of the placing groove 13 is fixed with a protection block 14, and the water-slow-expanding waterstop 3 is placed above the protection block 14.
[0034] In some optional embodiments, the steel sheet pile body 1 comprises a web plate 12 and two side plates 11, and the two side plates 11 are respectively fixed at the two ends of the web plate 12 to form an "H" type structure.
[0035] The steel sheet pile in the present application is improved on the basis of H-shaped steel, wherein the lock ring 21, the lock back ring 22 and the protection block 14 are welded with the steel sheet pile body 1, and the placing groove 13 is formed by shaping and bending. Specifically, the steel sheet pile body 1 can adopt various types of H-shaped steel; the lock ring 21 and the lock back ring 22 are welded on the H-shaped steel, and the water-slow-expanding waterstop 3 is installed according to the length of the steel sheet pile.
[0036] In some optional embodiments, the ring mouth grooves of the two lock rings 21 on the side plate 11 are located at the end of the side plate 11 away from the web plate 12, and the cross sections of the two ring mouth grooves are arranged in a "eight" type; the lock back ring 22 is a slope plate, and the lock back ring 22 is located at the end of the side plate 11 close to the web plate 12; the two lock back rings 22 on the side plate 11 are arranged in a "eight" type, and the lock back ring 22 is inserted into the ring mouth groove of the lock ring 21.
[0037] In use, the steel sheet pile is installed by using a vibration hammer, the two sides are connected by using the lock ring 21 and the lock back ring 22, the bottom of the first steel sheet pile is provided with a steel sheet pile with a protection block 14 to prevent the water-slow-expanding waterstop 3 from being damaged due to soil destruction when sinking the pile; if water seeps into this part in the later period, the two lock structures will strengthen the connection between the steel sheet piles, and the water-slow-expanding waterstop 3 will expand and seal the water seepage gap when encountering the seepage water.
[0038] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0039] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.
Claims
1. A double-locking self-waterproofing steel sheet pile, characterized by, The utility model relates to a steel sheet pile body (1) has two side plates (11) on it, the two side plates (11) are parallel to each other, a lock structure (2) is arranged on the side plate (11), the lock structure (2) includes two lock rings (21) and two lock back rings (22), the two lock rings (21) are fixedly connected to the two sides of one side plate (11) respectively, and the two lock back rings (22) are fixedly connected to the two sides of the other side plate (11) respectively, a water-slowly-swelling waterstop (3) is arranged on the outer side of one side plate (11), when two steel sheet pile bodies (1) are connected to each other, the two lock back rings (22) on any steel sheet pile body (1) are inserted into the two lock rings (21) on the other steel sheet pile body (1) respectively, and the water-slowly-swelling waterstop (3) is clamped between the two opposite side plates (11) on the two steel sheet pile bodies (1). The outer side wall of the side plate (11) fixedly connected with the lock ring (21) is provided with a placing groove (13), and the water-slowly-swelling waterstop (3) is placed in the placing groove (13). The cross section of the placing groove (13) is trapezoidal, and there is a gap between the two sides of the water-slowly-swelling waterstop (3) and the two sides of the placing groove (13). When the two steel sheet pile bodies (1) are connected to each other, the two opposite side plates (11) on the two steel sheet pile bodies (1) are in contact, and the water-slowly-swelling waterstop (3) is clamped between the side plate (11) and the placing groove (13).
2. The double-lock self-waterproofing steel sheet pile according to claim 1, characterized in that: The bottom of the placing groove (13) is fixedly connected with a protection block (14), and the water-slowly-swelling waterstop (3) is placed above the protection block (14).
3. The double-lock self-waterproofing steel sheet pile according to claim 2, characterized in that: The steel sheet pile body (1) includes a web plate (12) and two side plates (11), and the two side plates (11) are fixedly connected to the two ends of the web plate (12) to form a "H" type structure.
4. The double-locking self-waterproofing steel sheet pile according to claim 2, characterized in that: The ring opening grooves of the two lock rings (21) on the side plate (11) are located at the end of the side plate (11) away from the web plate (12), the cross sections of the two ring opening grooves are in the shape of an "eight", the lock back ring (22) is an inclined plate, the lock back ring (22) is located at the end of the side plate (11) close to the web plate (12), the two lock back rings (22) on the side plate (11) are in the shape of an "eight", and the lock back ring (22) is inserted into the ring opening groove of the lock ring (21).
5. The double-locking self-waterproofing steel sheet pile according to claim 2, characterized in that: 6. The double-locking self-waterproofing steel sheet pile according to claim 1, characterized in that: 7. The double-lock self-waterproofing steel sheet pile according to claim 6, characterized in that: