Steel sheet pile structure for foundation pit supporting

Abstract

The utility model relates to a steel sheet pile structure for foundation pit supporting, and relates to the technical field of steel sheet pile supporting, the steel sheet pile structure comprises a plurality of steel sheet pile bodies, and the plurality of steel sheet pile bodies are engaged with each other and surround the circumferential direction of a foundation pit; the supporting plate is vertically and fixedly connected with the steel sheet pile body and is in a horizontal state; the supporting plate is fixedly connected to the side, facing the interior of the foundation pit, of the steel sheet pile body. The cross beam is arranged on the upper surface of the supporting plate and abuts against the steel sheet pile body; the baffles are vertically and fixedly connected to the side walls, deviating from the steel sheet pile body, of the beams; the baffle is vertically arranged; the supporting beams are located between the two adjacent cross beams, and the supporting beams abut against the baffles connected with the two adjacent cross beams; and the two ends of each supporting beam are located above the corresponding supporting plate. The steel sheet pile supporting structure has the effect of improving the steel sheet pile supporting stability.

Description

Technical Field

[0001] The present application relates to the technical field of steel sheet pile support, and in particular to a steel sheet pile structure for foundation pit support. Background Art

[0002] Steel sheet piles are hot-rolled or cold-bent steel with locks or jaws. After being driven in, they are connected and engaged with each other by locks or jaws to form a continuous steel sheet pile retaining wall, which is used to retain soil and water. It has the characteristics of fast construction, steel sheet piles can be removed and recycled after the foundation pit construction is completed, and it has good economic efficiency. It has been widely used in water conservancy, transportation and other industries; steel sheet piles are commonly used in engineering construction. The foundation support structure is used to reinforce the soil and provide stable support.

[0003] In the existing method of using steel sheet piles, the steel sheet piles are first driven into the ground, and then the foundation pit is excavated. During the excavation process, the steel sheet piles need to be supported. Since the steel sheet piles are surrounded by the periphery of the foundation pit, the steel sheet piles on the two symmetrical sides of the foundation pit are generally supported along the length direction or the width direction of the foundation pit.

[0004] With regard to the above-mentioned related technologies, when the length span of the foundation pit is large, during the foundation pit excavation process, two symmetrical steel sheet piles can be supported in time along the length direction of the foundation pit according to the progress of the foundation pit excavation. However, the span of the two steel sheet piles in the width direction of the foundation pit is large, which is not convenient for support, and there is a defect that the steel sheet pile support has poor stability. Utility Model Content

[0005] In order to improve the stability of steel sheet pile support, the present application provides a steel sheet pile structure for foundation pit support.

[0006] A steel sheet pile structure for foundation pit support provided in the present application adopts the following technical scheme: it includes: a steel sheet pile body, which is provided with multiple steel sheet pile bodies, which are interlocked with each other and surround the circumference of the foundation pit; a support plate, which is vertically fixedly connected to the steel sheet pile body and is in a horizontal state; the support plate is fixedly connected to the side of the steel sheet pile body facing the foundation pit; a crossbeam, which is placed on the upper surface of the support plate and pressed against the steel sheet pile body; a baffle, which is vertically fixedly connected to the side wall of the crossbeam away from the steel sheet pile body; and the baffle is vertically arranged; a support beam, which is located between two adjacent crossbeams, and the support beam is pressed against the baffle connected by the two adjacent crossbeams; both ends of the support beam are located above the support plate.

[0007] By adopting the above technical solution, when using, after the steel sheet pile body is inserted into the foundation pit, as the foundation pit is excavated, when the steel sheet pile body is supported in the width direction of the foundation pit, the support plate and the baffle are first fixedly connected at the preset position, and then the support beam is pressed against the cross beam, and the cross beam is stopped under the stopping effect of the baffle, so that the foundation pit with a large length span can be supported. The stability of the foundation pit support is improved.

[0008] Optionally, an adjustment member is provided between the support beam and the baffle plate, and the adjustment member includes an adjustment tube, an adjustment rod, an adjustment sleeve and a slider; the adjustment tube is fixedly connected to the side wall of the support beam close to the baffle plate, and the adjustment tube is perpendicular to the baffle plate; the adjustment rod is slidably inserted into the adjustment tube; the adjustment sleeve is located at the end of the adjustment tube away from the support beam, the adjustment sleeve is rotatably connected to the adjustment tube, and the adjustment sleeve is threadedly connected to the adjustment rod; the slider is fixedly connected to the inner wall of the adjustment tube, the adjustment rod is provided with a slide groove along its length direction, the slider is located in the slide groove and slides along the direction in which the slide groove is opened.

[0009] By adopting the above technical solution, when the support beam is placed on the support plate, the adjusting sleeve is rotated. Under the limiting action of the slider and the slide groove, the adjusting sleeve drives the end of the adjusting rod that is not inserted in the adjusting tube to press against the baffle. The baffle exerts a reaction force to press the support beam against the cross beam, thereby improving the stability of the steel sheet pile support structure.

[0010] Optionally, a limiting tube is provided on a side wall of the baffle plate close to the adjusting member, and one end of the adjusting rod facing away from the adjusting tube is slidably inserted into the limiting tube.

[0011] By adopting the above technical solution, one end of the adjusting rod is inserted into the limiting tube. When the steel sheet pile body is subjected to external pressure, the limiting tube and the adjusting part are used in combination to reduce the possibility of slipping of one end of the adjusting rod pressed against the baffle, thereby ensuring that the support beam is pressed against the cross beam, thereby improving the stability of the foundation pit support.

[0012] Optionally, the support beam includes a plurality of connecting beams, the connecting beams are made of I-beams, the plurality of connecting beams are spliced ​​along their length direction, and the webs of the connecting beams are in a vertical state.

[0013] By adopting the above technical solution, the support beam formed by splicing multiple connecting beams is convenient for workers to construct.

[0014] Optionally, reinforcing plates are provided on both sides of the web plates of two adjacent connecting beams, and the reinforcing plates are pressed against two wing plates of the connecting beams.

[0015] By adopting the above technical solution, the provision of the reinforcing plate improves the bending resistance of the support beam, and improves the connection stability of the two adjacent connecting beams and the integrity after the connection.

[0016] Optionally, a sleeve is provided between two adjacent connecting beams, the sleeve is sleeved between the two adjacent connecting beams, and the side wall of the web of the reinforcing plate away from the connecting beam abuts against the inner wall of the sleeve.

[0017] Optionally, the crossbeam close to the side wall in the length direction of the foundation pit abuts against the side of the crossbeam close to the side wall in the width direction of the foundation pit away from the steel sheet pile body.

[0018] By adopting the above technical scheme, during the foundation pit support process, more support will be carried out along the length direction of the foundation pit. The beams close to the length direction of the foundation pit will be pressed against the beams close to the width direction of the foundation pit, thereby improving the deformation resistance of the beams in the width direction of the foundation pit and improving the stability of the overall support of the foundation pit.

[0019] Optionally, a reinforcing rib is provided on the side of the baffle away from the support beam, and the reinforcing rib fixedly connects the baffle and the cross beam.

[0020] By adopting the above technical solution, the setting of the reinforcing ribs improves the connection stability between the baffle and the crossbeam, while also improving the baffle's anti-deformation ability and improving the stability of the foundation pit support.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. When using, after the steel sheet pile body is inserted into the foundation pit, as the foundation pit is excavated, when the steel sheet pile body is supported in the width direction of the foundation pit, the support plate and the baffle are first fixed and connected at the preset position, and then the support beam is pressed against the cross beam. Under the stopping effect of the baffle, the cross beam is stopped, and the foundation pit with a large length span is supported. The stability of the foundation pit support is improved.

[0023] 2. After the support beam is placed on the support plate, the adjusting sleeve is rotated. Under the limiting action of the slider and the slide groove, the adjusting sleeve drives the end of the adjusting rod that is not inserted in the adjusting tube to press against the baffle. The baffle exerts a reaction force to press the support beam against the cross beam, thereby improving the stability of the steel sheet pile support structure.

[0024] 3. One end of the adjusting rod is inserted into the limit tube. When the steel sheet pile body is subjected to external pressure, the limit tube and the adjusting piece are used together to reduce the possibility of slipping of one end of the adjusting rod against the baffle, thereby ensuring that the support beam is against the cross beam and improving the stability of the foundation pit support. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram showing some parts of the baffle;

[0027] Figure 3 It is a cross-sectional view showing the adjusting member.

[0028] Explanation of the accompanying reference numerals: 1. Steel sheet pile body; 2. Support plate; 3. Crossbeam; 4. Baffle; 5. Support beam; 51. Connecting beam; 6. Adjusting member; 61. Adjusting pipe; 62. Adjusting rod; 621. Slide groove; 63. Adjusting sleeve; 64. Slider; 7. Limiting pipe; 8. Reinforcement plate; 9. Casing; 10. Reinforcement rib. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0030] The embodiment of the present application discloses a steel sheet pile structure for foundation pit support.

[0031] refer to Figure 1 and Figure 2 The steel sheet pile structure for foundation pit support includes a steel sheet pile body 1, a support plate 2, a cross beam 3, a baffle 4 and a support beam 5; the steel sheet pile body 1 is provided with a plurality of steel sheet pile bodies 1, which are mutually engaged and enclosed in the circumference of the foundation pit; the support plate 2 is vertically fixedly connected to the steel sheet pile body 1 and the support plate 2 is in a horizontal state, the support plate 2 is fixedly connected to the side of the steel sheet pile body 1 facing the foundation pit, and the support plate 2 is used to carry the cross beam 3 and the support beam 5. The cross beam 3 is placed on the upper surface of the support plate 2 and pressed against the steel sheet pile body 1; in this embodiment, the cross beam 3 that is close to the side wall of the foundation pit in the length direction is pressed against the side of the cross beam 3 that is close to the side wall of the foundation pit in the width direction away from the steel sheet pile body 1. The baffle 4 is vertically fixedly connected to the side wall of the cross beam 3 that is away from the steel sheet pile body 1, and the baffle 4 is vertically arranged. The support beam 5 is located between two adjacent cross beams 3, and the support beam 5 is pressed against the baffle 4 connected to the two adjacent cross beams 3, and both ends of the support beam 5 are above the support plate 2.

[0032] When in use, after the steel sheet pile body 1 is inserted into the foundation pit, as the foundation pit is excavated, when the steel sheet pile body 1 is supported in the width direction of the foundation pit, the support plate 2 and the baffle plate 4 are first fixedly connected at a preset position, and then the crossbeam 3 is placed above the support plate 2. In the process of preventing the crossbeam 3, according to the design requirements, the crossbeam 3 close to the side wall of the foundation pit in the length direction is pressed against the side of the crossbeam 3 close to the side wall in the width direction of the foundation pit away from the steel sheet pile body 1. Then the support beam 5 is pressed against the crossbeam 3, and the crossbeam 3 is stopped under the stopping action of the baffle plate 4, so that the foundation pit with a large length span is supported. The stability of the foundation pit support is improved. Since more support will be carried out along the length direction of the foundation pit during the foundation pit support process, the support along the length direction of the foundation pit will be more stable. The crossbeam 3 close to the length direction of the foundation pit is pressed against the crossbeam 3 in the width direction of the foundation pit, which improves the deformation resistance of the crossbeam 3 in the width direction of the foundation pit and improves the stability of the overall support of the foundation pit.

[0033] refer to Figure 1 and Figure 2The support beam 5 includes a plurality of connecting beams 51, and the number of connecting beams 51 is reasonably set according to the designed length of the support beam 5; in this embodiment, the connecting beam 51 is made of I-beams, and a plurality of connecting beams 51 are spliced ​​along the length direction, and the web of the connecting beam 51 is in a vertical state. In this embodiment, both end surfaces of the support beam 5 abut against the cross beam 3 and the baffle 4. Reinforcement plates 8 are provided on both sides of the web of two adjacent connecting beams 51, and the reinforcement plates 8 abut against the two wing plates of the connecting beam 51. A sleeve 9 is provided between two adjacent connecting beams 51, and the sleeve 9 is sleeved between two adjacent connecting beams 51, and the web of the reinforcing plate 8 facing away from the connecting beam 51 abuts against the inner wall of the sleeve 9.

[0034] refer to Figure 1 and Figure 2 The support beam 5 formed by splicing a plurality of connecting beams 51 is convenient for construction workers; and the arrangement of the reinforcing plate 8 and the sleeve 9 improves the bending resistance of the support beam 5, and improves the connection stability and integrity of the two adjacent connecting beams 51. At the same time, the arrangement of the sleeve 9 improves the integrity between the reinforcing plate 8 and the two adjacent connecting beams 51.

[0035] A reinforcing rib 10 is provided on the side of the baffle plate 4 away from the support beam 5, and the reinforcing rib 10 is fixedly connected to the baffle plate 4 and the cross beam 3. The provision of the reinforcing rib 10 improves the connection stability between the baffle plate 4 and the cross beam 3, and at the same time improves the anti-deformation ability of the baffle plate 4, and improves the stability of the foundation pit support.

[0036] refer to Figure 2 and Figure 3 An adjusting member 6 is provided between the support beam 5 and the baffle 4. The adjusting member 6 includes an adjusting tube 61, an adjusting rod 62, an adjusting sleeve 63 and a sliding block 64. The adjusting tube 61 is fixedly connected to the side wall of the support beam 5 near the baffle 4, and the adjusting tube 61 is perpendicular to the baffle 4; the adjusting rod 62 is slidably inserted in the adjusting tube 61; the adjusting sleeve 63 is located at the end of the adjusting tube 61 away from the support beam 5, the adjusting sleeve 63 is rotatably connected to the adjusting tube 61, and the adjusting sleeve 63 is threadedly connected to the adjusting rod 62; the sliding block 64 is fixedly connected to the inner wall of the adjusting tube 61, the adjusting rod 62 is provided with a sliding groove 621 along its length direction, the sliding block 64 is located in the sliding groove 621 and slides along the direction in which the sliding groove 621 is opened. A limiting tube 7 is provided on the side wall of the baffle 4 near the adjusting member 6, and the end of the adjusting rod 62 away from the adjusting tube 61, that is, the end of the adjusting rod 62 not inserted in the adjusting tube 61, is slidably inserted in the limiting tube 7.

[0037] When the support beam 5 is placed on the support plate 2, the adjusting sleeve 63 is rotated, and the adjusting sleeve 63 rotates and drives the end of the adjusting rod 62 that is not inserted in the adjusting tube 61 to press against the baffle 4 under the limiting action of the slider 64 and the slide groove 621. The baffle 4 applies a reaction force to realize that the support beam 5 presses against the cross beam 3, thereby improving the stability of the steel sheet pile support structure. One end of the adjusting rod 62 is inserted in the limiting tube 7. When the steel sheet pile body 1 is subjected to external pressure, the limiting tube 7 cooperates with the adjusting member 6 to reduce the possibility of slipping of the end of the adjusting rod 62 pressing against the baffle 4, thereby ensuring that the support beam 5 presses against the cross beam 3, thereby improving the stability of the foundation pit support.

[0038] The implementation principle of a steel sheet pile structure for foundation pit support in the embodiment of the present application is as follows: after the steel sheet pile body 1 is inserted into the foundation pit, as the foundation pit is excavated, when the steel sheet pile body 1 is supported in the width direction of the foundation pit, the support plate 2 and the baffle plate 4 are first fixedly connected at a preset position, and then the crossbeam 3 is placed above the support plate 2. In the process of preventing the crossbeam 3 from being blocked, according to the design requirements, the crossbeam 3 that is close to the side wall in the length direction of the foundation pit is pressed against the side of the crossbeam 3 that is close to the side wall in the width direction of the foundation pit away from the steel sheet pile body 1. Then the support beam 5 is pressed against the crossbeam 3, and the crossbeam 3 is stopped under the stopping action of the baffle plate 4, thereby supporting the foundation pit with a large length span. The stability of the foundation pit support is improved. Since more support will be carried out along the length direction of the foundation pit during the foundation pit support process, the support along the length direction of the foundation pit will be more stable. The cross beam 3 in the length direction of the foundation pit is pressed against the cross beam 3 in the width direction of the foundation pit, thereby improving the anti-deformation ability of the cross beam 3 in the width direction of the foundation pit and improving the stability of the overall support of the foundation pit.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel sheet pile structure for foundation pit support, characterized in that: include: A plurality of steel sheet pile bodies (1) are provided, and the plurality of steel sheet pile bodies (1) are interlocked with each other and surround the circumference of the foundation pit; The support plate (2) is vertically fixedly connected to the steel sheet pile body (1) and is in a horizontal state; the support plate (2) is fixedly connected to the side of the steel sheet pile body (1) facing the foundation pit; A crossbeam (3) is placed on the upper surface of the support plate (2) and is pressed against the steel sheet pile body (1); The baffle (4) is vertically fixedly connected to the side wall of the cross beam (3) facing away from the steel sheet pile body (1); and the baffle (4) is vertically arranged; The support beam (5) is located between two adjacent cross beams (3), and the support beam (5) is pressed against the baffle (4) connected by the two adjacent cross beams (3); both ends of the support beam (5) are located above the support plate (2).

2. The steel sheet pile structure for foundation pit support according to claim 1, characterized in that: An adjusting member (6) is provided between the support beam (5) and the baffle (4), and the adjusting member (6) comprises an adjusting tube (61), an adjusting rod (62), an adjusting sleeve (63) and a sliding block (64); the adjusting tube (61) is fixedly connected to the side wall of the support beam (5) close to the baffle (4), and the adjusting tube (61) is perpendicular to the baffle (4); the adjusting rod (62) is slidably inserted into the adjusting tube (61); the adjusting sleeve (63) is located at the end of the adjusting tube (61) away from the support beam (5), the adjusting sleeve (63) is rotatably connected to the adjusting tube (61), and the adjusting sleeve (63) is threadedly connected to the adjusting rod (62); the sliding block (64) is fixedly connected to the inner wall of the adjusting tube (61), the adjusting rod (62) is provided with a sliding groove (621) along its length direction, and the sliding block (64) is located in the sliding groove (621) and slides along the opening direction of the sliding groove (621).

3. The steel sheet pile structure for foundation pit support according to claim 2 is characterized in that: A limiting tube (7) is arranged on the side wall of the baffle (4) close to the adjusting member (6), and one end of the adjusting rod (62) which is away from the adjusting tube (61) is slidably inserted into the limiting tube (7).

4. The steel sheet pile structure for foundation pit support according to claim 1, characterized in that: The support beam (5) comprises a plurality of connecting beams (51), wherein the connecting beams (51) are made of I-beams as raw materials, the plurality of connecting beams (51) are spliced ​​along their length direction, and the webs of the connecting beams (51) are in a vertical state.

5. The steel sheet pile structure for foundation pit support according to claim 4, characterized in that: Reinforcement plates (8) are provided on both sides of the web plates of the two adjacent connecting beams (51), and the reinforcement plates (8) are pressed against the two wing plates of the connecting beam (51).

6. The steel sheet pile structure for foundation pit support according to claim 5, characterized in that: A sleeve (9) is provided between the two adjacent connecting beams (51), the sleeve (9) is sleeved between the two adjacent connecting beams (51), and the side wall of the web of the reinforcing plate (8) facing away from the connecting beam (51) abuts against the inner wall of the sleeve (9).

7. The steel sheet pile structure for foundation pit support according to claim 1, characterized in that: The cross beam (3) closely attached to the side wall in the length direction of the foundation pit abuts against the side of the cross beam (3) closely attached to the side wall in the width direction of the foundation pit that is away from the steel sheet pile body (1).

8. The steel sheet pile structure for foundation pit support according to claim 1, characterized in that: A reinforcing rib (10) is provided on the side of the baffle (4) facing away from the support beam (5), and the reinforcing rib (10) is fixedly connected to the baffle (4) and the cross beam (3).

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