Double-row steel sheet pile supporting structure
By using a double-row sheet pile structure and high-strength bolt connections, and with the sleeve clamping plate acting as a transfer mechanism, the problem of insufficient rigidity of single-row sheet piles is solved, thus expanding the stability and applicability of foundation pit support.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-31
AI Technical Summary
Existing single-row steel sheet piles suffer from insufficient rigidity and large deformation of the support structure when soil conditions are poor or the excavation depth exceeds a certain limit, making it difficult to provide stable support.
The structure adopts a double-row steel sheet pile structure, with the inner and outer rows of steel sheet piles connected by high-strength bolts. The support is enhanced by the transmission effect of sleeves and clamps, and the bolts are protected by elastic cloth. The connection stability is improved by the cooperation of high-strength bolts and nuts.
It improves the stiffness and stability of the support structure, expands its applicable scope, reduces problems such as deformation inconsistency and top displacement, and enhances the stability of the foundation pit support.
Smart Images
Figure CN224063459U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of support structures, specifically a double-row steel sheet pile support structure. Background Technology
[0002] With the rapid development of my country's economy and the acceleration of urbanization, deep foundation pits are becoming increasingly common. In the face of the country's advocacy of green and environmentally friendly support, steel sheet piles, as a traditional green support structure, are quite limited in use due to factors such as soil conditions and the depth of the foundation pit. This means that their recyclability advantage cannot be maximized. At the same time, due to the limitations of their materials, their strength is relatively low, so they can only be applied to foundation pits with relatively good soil conditions and shallow excavation depth.
[0003] However, in practice, we often encounter situations where the soil conditions are poor, the foundation pit is dug to a certain depth, and single-row steel sheet piles have insufficient rigidity and large deformation of the support structure, making it difficult to provide stable support for the foundation pit.
[0004] Therefore, a double-row steel sheet pile support structure is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A double-row sheet pile support structure, comprising an inner row of sheet piles and an outer row of sheet piles, is characterized in that: the inner row of sheet piles and the outer row of sheet piles are connected by multiple high-strength bolts; each high-strength bolt has a first nut threadedly connected to its center; a waler is welded and fixed to the center of the inner row of sheet piles; multiple steel diagonal braces are welded and fixed to the center of the waler; through the combined action of the inner row of sheet piles and the outer row of sheet piles, the problems of insufficient rigidity and large deformation of the support structure caused by only setting the inner row of sheet piles are solved. The combined action of the high-strength bolts and the first nuts allows for rapid connection between the inner row of sheet piles and the outer row of sheet piles, also reducing the problems of inconsistent deformation and top misalignment between the inner and outer rows of sheet piles, thus expanding the applicability of the support structure.
[0007] Preferably, multiple sleeves are provided between the inner row of sheet piles and the waler; an operating plate is fixedly connected to the middle of the sleeve; a screw is threadedly connected to the inner wall of the sleeve; a clamping plate is fixedly connected to the end of the screw; the shape of the clamping plate corresponds to that of the waler; after the waler and steel diagonal brace are welded to one side of the inner row of sheet piles, the inner wall of the clamping plate can be clamped to the outside of the waler to fix it in a fixed state. Then, the operating plate can be rotated to move the sleeve toward the inner wall of the inner row of sheet piles until the sleeve can abut against the inner wall of the inner row of sheet piles. At this time, through the transmission effect of the sleeve and the clamping plate, the inner row of sheet piles can receive more support and tie effect from the waler, thereby improving the stability and rigidity of the overall structure of the inner row of sheet piles.
[0008] Preferably, an elastic cloth is provided between the operating plate and the clamping plate; the elastic cloth is used to protect the screw; by providing the elastic cloth, when the sleeve and clamping plate support the inner row of steel sheet piles and walers, the elastic cloth will seal and protect the exposed threaded parts on the screw surface, reducing the pollution effect of external moisture and soil debris during soil excavation, and ensuring that the screw and sleeve can perform stable transmission.
[0009] Preferably, one end of the elastic fabric is fixedly connected to the sleeve; the other end of the sleeve is fixedly connected to multiple hanging rings; multiple first hooks are fixedly connected to the middle of the clamping plate; the hanging rings and the first hooks are arranged in corresponding shapes; when installing the sleeve, one end of the elastic fabric can be pressed onto the surface of the sleeve to fix it, and then the operating plate can be rotated to adjust the sleeve. After adjustment, the hanging rings on the surface of the elastic fabric can be hung on the first hooks on the surface of the clamping plate. Finally, when removing the elastic fabric, simply remove the hanging rings and the first hooks, thus realizing the quick installation and removal of the elastic fabric by the device.
[0010] Preferably, a plurality of second hooks are fixedly connected to the middle of the operating plate; the second hooks and the hanging rings are of the same shape and are correspondingly arranged; when the sleeve is rotated and adjusted, the hanging rings on the surface of the elastic cloth can be hung on the surface of the second hooks, reducing the amount of work required to fix the elastic cloth when rotating the sleeve, making the sleeve installation more convenient.
[0011] Preferably, the high-strength bolt has a second nut threaded in the middle; the second nut is located on one side of the first nut; through the cooperation of the first nut and the second nut, when the first nut tends to loosen, the second nut will prevent the first nut from loosening, thereby improving the stability of the high-strength bolt when connecting the inner and outer steel sheet piles.
[0012] The advantages of this utility model are:
[0013] 1. The double-row sheet pile support structure described in this utility model solves the problems of insufficient rigidity and large deformation of the support structure caused by only setting the inner row of sheet piles through the cooperation of the inner row of sheet piles and the outer row of sheet piles. Through the cooperation of high-strength bolts and the first nut, the inner row of sheet piles and the outer row of sheet piles can be quickly connected, which also reduces the problems of deformation incoordination and top misalignment between the inner row of sheet piles and the outer row of sheet piles, and expands the applicable scope of the support structure.
[0014] 2. The double-row sheet pile support structure described in this utility model uses sleeves and clamps to transfer the walers and inner row of sheet piles, allowing the inner row of sheet piles to receive more support and tension from the walers, thereby improving the overall stability and rigidity of the inner row of sheet piles. Attached Figure Description
[0015] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the main body of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the external steel sheet piles in this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the first nut in this utility model;
[0019] Figure 4 This is a schematic diagram of the card plate in this utility model;
[0020] Figure 5 This is a schematic diagram of the hanging ring in this utility model.
[0021] In the diagram: 1. Inner row of sheet piles; 12. Outer row of sheet piles; 13. Waler; 14. Steel diagonal brace; 15. High-strength bolt; 16. First nut; 2. Sleeve; 22. Operating panel; 23. Screw; 24. Clamping plate; 3. Elastic cloth; 4. Hanging ring; 42. First hook; 5. Second hook; 6. Second nut. Detailed Implementation
[0022] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] Specific implementation examples are given below.
[0024] Please see Figures 1 to 5 As shown in the embodiment of this utility model, a double-row steel sheet pile support structure includes an inner row of steel sheet piles 1 and an outer row of steel sheet piles 12. The inner row of steel sheet piles 1 and the outer row of steel sheet piles 12 are connected by a plurality of high-strength bolts 15; each high-strength bolt 15 has a first nut 16 threadedly connected to its center; a waler 13 is welded and fixed to the center of the inner row of steel sheet piles 1; and a plurality of steel diagonal braces 14 are welded and fixed to the center of the waler 13.
[0025] S1. First construct the inner row of steel sheet piles 1, which is close to the inner side of the foundation pit;
[0026] S2. Then, the outer sheet pile 12 is driven tightly against the outside of the inner sheet pile 1, and the inner sheet pile 1 and the outer sheet pile 12 are pressed together by squeezing.
[0027] S3. Use an electric welding machine to blow holes at the upper part of the inner row of steel sheet piles 1 and the outer row of steel sheet piles 12 where they are in close contact (the size of the holes is equivalent to the diameter of the high-strength bolts 15). Use two high-strength bolts 15 to tighten and fix the inner row of steel sheet piles 1 and the outer row of steel sheet piles 12 together to prevent them from shifting up and down.
[0028] S4. Then excavate the first layer of soil to the bottom of the waler 13, erect the waler 13, weld the waler 13 to the inner row of steel sheet piles 1, and then weld the steel diagonal brace 14 to the waler 13 to form a support system.
[0029] S5. Then carry out the foundation pit excavation construction. After the foundation support replacement construction is completed, the waler 13 and steel diagonal brace 14 can be removed first. After the foundation pit is backfilled, the high-strength bolt 15 and the first nut 16 can be unscrewed. Finally, the outer steel sheet pile 12 can be pulled out first, and then the inner steel sheet pile 1 can be pulled out.
[0030] The combination of inner sheet piles 1 and outer sheet piles 12 solves the problems of insufficient rigidity and large deformation of the support structure caused by only setting inner sheet piles 1. The combination of high-strength bolts 15 and first nuts 16 enables the inner sheet piles 1 and outer sheet piles 12 to be quickly connected, which also reduces the problems of deformation incoordination and top misalignment between inner sheet piles 1 and outer sheet piles 12, and expands the applicable scope of the support structure.
[0031] Please see Figures 3 to 5 As shown, multiple sleeves 2 are provided between the inner row of sheet piles 1 and the waler 13; an operating plate 22 is fixedly connected to the middle of the sleeve 2; a screw 23 is threadedly connected to the inner wall of the sleeve 2; a clamping plate 24 is fixedly connected to the end of the screw 23; the shape of the clamping plate 24 corresponds to that of the waler 13; after the waler 13 and the steel diagonal brace 14 are welded to one side of the inner row of sheet piles 1, the inner wall of the clamping plate 24 can be clamped to the outside of the waler 13 to fix it in a fixed state. Then the operating plate 22 can be rotated to move the sleeve 2 toward the inner wall of the inner row of sheet piles 1 until the sleeve 2 can abut against the inner wall of the inner row of sheet piles 1. At this time, through the transmission effect of the sleeve 2 and the clamping plate 24, the inner row of sheet piles 1 can receive more support and tension from the waler 13, thereby improving the stability and rigidity of the overall structure of the inner row of sheet piles 1.
[0032] Please see Figure 4 and Figure 5 As shown, an elastic cloth 3 is provided between the operating plate 22 and the clamping plate 24; the elastic cloth 3 is used to protect the screw 23; by setting the elastic cloth 3, when the sleeve 2 and the clamping plate 24 support the inner row of steel sheet piles 1 and the waler 13, the elastic cloth 3 will seal and protect the exposed thread part on the surface of the screw 23, reduce the pollution effect of external moisture and soil debris during soil excavation, and ensure that the screw 23 can carry out stable transmission with the sleeve 2.
[0033] Please see Figure 4 and Figure 5 As shown, one end of the elastic cloth 3 is fixedly connected to the sleeve 2; multiple hanging rings 4 are fixedly connected to the other end of the sleeve 2; multiple first hooks 42 are fixedly connected to the middle of the clamping plate 24; the hanging rings 4 and the first hooks 42 are arranged in corresponding shapes; when installing the sleeve 2, one end of the elastic cloth 3 can be pressed onto the surface of the sleeve 2 to fix it, and then the operating plate 22 can be rotated to adjust the sleeve 2. After adjustment, the hanging rings 4 on the surface of the elastic cloth 3 can be hung on the first hooks 42 on the surface of the clamping plate 24. Finally, when removing the elastic cloth 3, simply remove the hanging rings 4 and the first hooks 42, so as to realize the quick installation and removal of the elastic cloth 3 by the device.
[0034] Please see Figure 5 As shown, a plurality of second hooks 5 are fixedly connected to the middle of the operating plate 22; the second hooks 5 and the hanging rings 4 are of the same shape and are set accordingly; when the sleeve 2 is rotated and adjusted, the hanging rings 4 on the surface of the elastic cloth 3 can be hung on the surface of the second hooks 5, reducing the amount of work required to fix the elastic cloth 3 when rotating the sleeve 2, making the sleeve 2 more convenient to install.
[0035] Please see Figure 3As shown, the high-strength bolt 15 has a second nut 6 threadedly connected to its middle part; the second nut 6 is located on one side of the first nut 16; through the cooperation of the first nut 16 and the second nut 6, when the first nut 16 tends to loosen, the second nut 6 will prevent the first nut 16 from loosening, thereby improving the stability of the high-strength bolt 15 when connecting the inner row of steel sheet piles 1 and the outer row of steel sheet piles 12.
[0036] Working principle: First, construct the inner row of steel sheet piles 1 near the inner side of the foundation pit; then, drive the outer row of steel sheet piles 12 tightly against the outer side of the inner row of steel sheet piles 1, pressing them together; use an electric welding machine to blow holes (the hole size is equivalent to the diameter of the high-strength bolt 15) at the joint between the inner row of steel sheet piles 1 and the outer row of steel sheet piles 12, and use two high-strength bolts 15 to tighten and fix the inner row of steel sheet piles 1 and the outer row of steel sheet piles 12 together to prevent vertical displacement; then excavate the first layer of soil to the bottom of the waler 13, erect the waler 13, weld the waler 13 to the inner row of steel sheet piles 1, and then construct the steel inclined... The bracing 14 is welded to the waler 13 to form a support system. Then, the foundation pit is excavated. After the foundation support replacement is completed, the waler 13 and steel diagonal bracing 14 can be removed first. After the foundation pit is backfilled, the high-strength bolts 15 and the first nut 16 are removed. Finally, the outer row of sheet piles 12 is pulled out first, followed by the inner row of sheet piles 1. After welding the waler 13 and steel diagonal bracing 14 to one side of the inner row of sheet piles 1, the inner wall of the clamping plate 24 can be clamped to the outside of the waler 13 to fix it in a fixed state. Then, the operating plate 22 can be rotated to move the sleeve 2 towards the inner wall of the inner row of sheet piles 1 until the sleeve 2 can abut against the inner wall. The inner wall of the sheet pile 1 allows the waler 13 and the inner sheet pile 1 to receive more support and tension from the waler 13 through the transmission action of the sleeve 2 and the clamping plate 24. By setting the elastic cloth 3, when the sleeve 2 and the clamping plate 24 support the inner sheet pile 1 and the waler 13, the elastic cloth 3 will seal and protect the exposed threaded parts of the screw 23, reducing the contamination from external moisture and excavated soil. When installing the sleeve 2, one end of the elastic cloth 3 can be pressed against the surface of the sleeve 2 to fix it, and then the operating plate 22 can be rotated to adjust the sleeve 2. Afterwards, the hanging ring 4 on the surface of the elastic cloth 3 can be hung on the first hook 42 on the surface of the clamping plate 24. When removing the elastic cloth 3, simply remove the hanging ring 4 and the surface of the first hook 42. When rotating and adjusting the sleeve 2, the hanging ring 4 on the surface of the elastic cloth 3 can be hung on the surface of the second hook 5 to reduce the amount of work required to fix the elastic cloth 3 when rotating the sleeve 2. Through the cooperation of the first nut 16 and the second nut 6, when the first nut 16 tends to loosen, the second nut 6 will prevent the first nut 16 from loosening, thereby improving the stability of the high-strength bolt 15 when connecting the inner row of steel sheet piles 1 and the outer row of steel sheet piles 12.
[0037] 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 double-row steel sheet pile support structure comprising an inner row of steel sheet piles (1) and an outer row of steel sheet piles (12), characterized in that: The inner row steel sheet pile (1) and the outer row steel sheet pile (12) are connected through a plurality of high-strength bolts (15); the middle part of each high-strength bolt (15) is threadedly connected with a first nut (16); the middle part of the inner row steel sheet pile (1) is welded with a surrounding purlin (13); the middle part of the surrounding purlin (13) is welded with a plurality of steel diagonal braces (14).
2. A double-row steel sheet pile support structure according to claim 1, wherein: A plurality of sleeves (2) are arranged between the inner row steel sheet pile (1) and the surrounding purlin (13); the middle part of the sleeve (2) is fixedly connected with an operation plate (22); the inner wall of the sleeve (2) is threadedly connected with a screw rod (23); the end of the screw rod (23) is fixedly connected with a clamping plate (24); the clamping plate (24) is correspondingly arranged with the surrounding purlin (13).
3. A double-row steel sheet pile support structure according to claim 2, wherein: The operation plate (22) and the clamping plate (24) are provided with elastic cloth (3); the elastic cloth (3) is used for protecting the screw rod (23).
4. A double-row steel sheet pile support structure according to claim 3, wherein: One end of the elastic cloth (3) is fixedly connected with the sleeve (2); the other end of the sleeve (2) is fixedly connected with a plurality of hanging rings (4); the middle part of the clamping plate (24) is fixedly connected with a plurality of first hooks (42); the hanging ring (4) and the first hook (42) are correspondingly arranged.
5. A double-row steel sheet pile support structure according to claim 4, wherein: The middle part of the operation plate (22) is fixedly connected with a plurality of second hooks (5); the second hook (5) and the hanging ring (4) are correspondingly arranged.
6. A double-row steel sheet pile support structure according to claim 5, wherein: The middle part of the high-strength bolt (15) is threadedly connected with a second nut (6); the second nut (6) is located on one side of the first nut (16).