A steel sheet pile support structure for foundation pit excavation

Abstract

This utility model relates to the field of civil engineering construction technology, and discloses a steel sheet pile support structure for foundation pit excavation. It includes steel sheet columns connected by a fixing assembly. A fixing groove is formed on the side of each steel sheet column, extending into the soil. A sleeve is installed inside the fixing groove, and multiple protruding grooves are formed on the outer surface of the sleeve. An insertion block is movably installed inside each protruding groove, and a movable column is movably installed inside the sleeve. This utility model further enhances the interaction between the support structure and the foundation through the installation of the sleeve. When the movable insertion block inside the protruding groove, the movable column inside the sleeve, and the retaining plate are pushed, the inclined surface on the retaining plate can smoothly push the insertion block into the protruding groove, thereby achieving a firm fixation between the support structure and the soil. This eliminates the need for a large amount of support structure, facilitating operations inside the foundation pit.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering construction technology, and in particular to a steel sheet pile support structure for foundation pit excavation. Background Technology

[0002] In the complex process of foundation construction, excavation of the foundation pit is a crucial step, directly affecting the stability and safety of the subsequent structure. To effectively address the risks of landslides and overturning that may occur after excavation, steel sheet piles are widely used as the primary means of foundation pit support in the engineering field. Steel sheet piles have gained widespread recognition and application in various foundation pit support projects due to their high strength, ease of construction, and recyclable and environmentally friendly characteristics.

[0003] However, the traditional support method involves densely setting up multiple support columns inside the foundation pit to stabilize the sheet piles. While this approach enhances the stability of the support structure to some extent, it also greatly reduces the operating space inside the foundation pit, making it difficult for construction workers to carry out foundation construction, equipment installation, or other related operations. The narrow space not only restricts the flexible movement of construction machinery and personnel but may also increase the difficulty of operations and safety risks, thereby affecting the progress and quality of the entire project. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a steel sheet pile support structure for foundation pit excavation, comprising a steel sheet column, wherein the steel sheet columns are connected by a fixing component, a fixing groove is formed on the side of the steel sheet column, the fixing groove is formed inside the soil, a sleeve is installed inside the fixing groove, a plurality of protruding grooves are formed on the outer wall surface of the sleeve, an insertion block is movably arranged inside the protruding groove, a movable column is movably arranged inside the sleeve, a clamping plate is fixedly arranged on the surface of the movable column, the clamping plate has an inclined surface near the insertion block, one end of the movable column protrudes from the side of the steel sheet column, and a fastening component is arranged on the side of the steel sheet column around the movable column.

[0005] As an improvement to the above technical solution, the fixing component includes a fixing plate, and a plurality of threaded grooves are opened on adjacent sides of the steel plate column. The fixing plate is provided on the side of the threaded groove, and the fixing plate is fixed to the steel plate column by bolts. The fixing plate is disposed between two adjacent steel plate columns.

[0006] As an improvement to the above technical solution, the fastening assembly includes a rotating disk, the outer periphery of the movable column is threaded, the rotating disk is threadedly sleeved around the outer periphery of the movable column, and the surface of the rotating disk is provided with a plurality of hexagonal grooves.

[0007] As an improvement to the above technical solution, the side of the insertion block closest to the inclined surface is an inclined surface, and the length of the insertion block is greater than the length of the protruding groove.

[0008] As an improvement to the above technical solution, the first steel plate column is installed on one side of the foundation pit, and the second steel plate column is installed on the other side inside the foundation pit. The length of the second steel plate column is less than that of the first steel plate column, and the second steel plate column is equipped with the same structure as the first steel plate column.

[0009] The beneficial effects of this utility model are as follows: The connection of the fixing components between the steel plate columns ensures the overall stability and rigidity of the support structure, effectively resisting the lateral pressure that may be generated during the excavation of the foundation pit. Secondly, the fixing groove on the side of the steel plate column tightly integrates the support structure with the soil, improving the support effect. At the same time, the installation of the sleeve further enhances the interaction force between the support structure and the foundation. The insert block movable inside the protrusion groove, the movable column and the clamping plate movable inside the sleeve, when the movable column is pushed, the inclined surface on the clamping plate can smoothly push the insert block into the protrusion groove, thereby realizing the firm fixation of the support structure and the soil, simplifying the installation process, greatly improving the stability and safety of the support structure, eliminating the need for a large number of support structures, and facilitating the operation of personnel inside the foundation pit. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0012] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0013] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0014] Figure 5 for Figure 2 Enlarged view of point C in the middle.

[0015] Reference numerals: 10, Steel plate column one; 11, Steel plate column two; 12, Fixing plate; 13, Threaded groove; 14, Bolt; 20, Fixing groove; 21, Sleeve; 22, Protruding groove; 23, Insertion block; 24, Moving column; 25, Clamping plate; 26, Inclined surface; 27, Thread; 28, Rotating disk; 29, Hexagonal groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0017] Please see Figure 1-5 This utility model provides a technical solution: a steel sheet pile support structure for foundation pit excavation, including steel sheet columns 10, which are connected by fixing components. A fixing groove 20 is provided on the side of the steel sheet column 10, which is located inside the soil. A sleeve 21 is installed inside the fixing groove 20. Multiple protruding grooves 22 are provided on the outer surface of the sleeve 21. An insertion block 23 is movably arranged inside the protruding groove 22. A movable column 24 is movably arranged inside the sleeve 21. A clamping plate 25 is fixedly arranged on the surface of the movable column 24. An inclined surface 26 is provided on the side of the clamping plate 25 near the insertion block 23. One end of the movable column 24 extends out of the side of the steel sheet column 10. Fastening components are provided on the side of the steel sheet column 10 around the movable column 24.

[0018] In this implementation scheme, the connection of the fixing components between the steel plate columns 10 ensures the overall stability and rigidity of the support structure, effectively resisting the lateral pressure that may be generated during the excavation of the foundation pit. Secondly, the fixing groove 20 on the side of the steel plate column 10 tightly integrates the support structure with the soil, improving the support effect. At the same time, the installation of the sleeve 21 further enhances the interaction force between the support structure and the foundation. The insert block 23 is movably set inside the protrusion groove 22, and the movable column 24 and clamping plate 25 are movably set inside the sleeve 21. When the movable column 24 is pushed, the inclined surface 26 on the clamping plate 25 can smoothly push the insert block 23 into the protrusion groove 22, thereby realizing the firm fixation of the support structure and the soil, simplifying the installation process, greatly improving the stability and safety of the support structure, eliminating the need for a large number of support structures, and facilitating the operation of personnel inside the foundation pit.

[0019] Specifically, the fixing component includes a fixing plate 12. Several threaded grooves 13 are opened on the adjacent sides of the steel plate column 10. The fixing plate 12 is provided on the side of the threaded groove 13. The fixing plate 12 is fixed to the steel plate column 10 by bolts 14. The fixing plate 12 is located between two adjacent steel plate columns 10.

[0020] In this embodiment, a tight connection between adjacent steel plate columns is achieved through threaded grooves 13 opened on the side of adjacent steel plate columns 10 and fixing plates 12 set on the side of the threaded grooves 13. The fixing plates 12 are firmly fixed to the steel plate columns by bolts 14. This connection method is simple and easy to implement, and has high connection strength and stability. In addition, the design of the fixing components also has a certain degree of flexibility. Due to the cooperation of the threaded grooves 13 and bolts 14, the operator can adjust the position and tightness of the fixing plates 12 according to actual needs to adapt to different excavation depths and geological conditions. This flexibility ensures that the support structure can maintain the best working condition under various working conditions and improves the support effect.

[0021] Specifically, the fastening assembly includes a rotating disk 28, a moving post 24 with threads 27 on its periphery, the rotating disk 28 being sleeved on the periphery of the moving post 24 through the threads 27, and a number of hexagonal grooves 29 on the surface of the rotating disk 28.

[0022] In this embodiment, the design of the thread 27 on the periphery of the movable column 24 and the rotating disk 28 being fitted onto the periphery of the movable column 24 via the thread 27 achieves the fastening and adjustment of the support structure. The hexagonal groove 29 on the surface of the rotating disk 28 allows for easy rotation using tools such as a hex wrench, thereby moving the movable column 24 to adjust the tightness of the support structure, improving operational convenience and ensuring that the support structure maintains optimal tightness under various working conditions. Furthermore, the design of the fastening components also offers a degree of flexibility and adaptability. Due to the cooperation of the thread 27 and the rotating disk 28, operators can adjust the tightness of the support structure according to actual needs to adapt to different excavation depths and geological conditions. This flexibility ensures that the support structure maintains optimal working condition under various working conditions, improving the support effect.

[0023] Specifically, the side of the insertion block 23 closest to the inclined surface 26 is an inclined surface, and the length of the insertion block 23 is greater than the length of the protruding slot 22.

[0024] In this embodiment, the side of the insertion block 23 closest to the inclined surface 26 is designed as an inclined surface. This innovative design allows the inclined surface 26 on the card plate 25 to smoothly push the insertion block 23 along the inclined surface into the extension groove 22 when the moving column 24 is pushed. This simplifies the installation process, reduces the difficulty of operation, and ensures that the insertion block 23 can be firmly fixed in the extension groove 22 and is not easy to fall off. In addition, the design that the length of the insertion block 23 is greater than the length of the extension groove 22 enhances the interaction force between the support structure and the soil. When the insertion block 23 is fully inserted into the extension groove 22, the part of it that extends beyond the extension groove 22 will penetrate into the soil, thereby improving the stability and lateral pressure resistance of the support structure. This design enables the support structure to maintain better working performance and safety when facing complex geological conditions and large lateral pressure.

[0025] Specifically, steel plate column 10 is installed on one side of the foundation pit, and steel plate column 21 is installed on the other side inside the foundation pit. The length of steel plate column 211 is less than that of steel plate column 10, and steel plate column 211 is equipped with the same structure as steel plate column 10.

[0026] In this embodiment, the combined use of steel plate column 10 and steel plate column 21 provides comprehensive and effective support for the excavation of the foundation pit. Steel plate column 10 is installed on one side of the foundation pit, while steel plate column 21 is installed on the other side inside the foundation pit. This layout ensures that both sides of the foundation pit are adequately supported, thereby improving the safety and stability of the foundation pit excavation. The design of steel plate column 21 being shorter than steel plate column 10 not only meets the support requirements of different sides of the foundation pit but also achieves the rational use of support materials. This differentiated design makes the support structure both stable and economical. In addition, the internal structure of steel plate column 21 is consistent with that of steel plate column 10, ensuring the consistency of the support structure in terms of integrity and performance. Both steel plate column 10 and steel plate column 211 use the same materials and processes, thereby ensuring the reliability and durability of the support structure.

[0027] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A steel sheet pile support structure for foundation pit excavation, characterized in that: The system includes a steel plate column (10), which is connected to each other by a fixing component. A fixing groove (20) is provided on the side of the steel plate column (10), which is located inside the soil. A sleeve (21) is installed inside the fixing groove (20). Multiple protrusion grooves (22) are provided on the outer wall surface of the sleeve (21). An insertion block (23) is movably arranged inside the protrusion groove (22). A movable column (24) is movably arranged inside the sleeve (21). A clamping plate (25) is fixedly arranged on the surface of the movable column (24). An inclined surface (26) is provided on the side of the clamping plate (25) near the insertion block (23). One end of the movable column (24) extends out of the side of the steel plate column (10). A fastening component is provided on the side of the steel plate column (10) around the movable column (24).

2. The sheet pile support structure for foundation pit excavation according to claim 1, characterized in that: The fixing component includes a fixing plate (12). Several threaded grooves (13) are opened on the adjacent sides of the steel plate column (10). The fixing plate (12) is provided on the side of the threaded groove (13). The fixing plate (12) is fixed on the steel plate column (10) by bolts (14). The fixing plate (12) is located between two adjacent steel plate columns (10).

3. The sheet pile support structure for foundation pit excavation according to claim 1, characterized in that: The fastening assembly includes a rotating disk (28), and the outer periphery of the moving column (24) is provided with threads (27). The rotating disk (28) is sleeved on the outer periphery of the moving column (24) through the threads (27). The surface of the rotating disk (28) is provided with a plurality of hexagonal grooves (29).

4. The sheet pile support structure for foundation pit excavation according to claim 1, characterized in that: The side of the insertion block (23) closest to the inclined surface (26) is an inclined surface, and the length of the insertion block (23) is greater than the length of the protrusion groove (22).

5. The sheet pile support structure for foundation pit excavation according to claim 1, characterized in that: The first steel plate column (10) is installed on one side of the foundation pit, and the second steel plate column (11) is installed on the other side inside the foundation pit. The length of the second steel plate column (11) is less than that of the first steel plate column (10), and the second steel plate column (11) is equipped with the same structure as the first steel plate column (10).

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