Foundation pit supporting structure for civil engineering

Abstract

The utility model discloses a civil engineering foundation pit supporting structure which comprises a steel sheet pile, a supporting cross beam and a supporting structure. According to the civil engineering foundation pit supporting structure, supporting cross beams abut against steel sheet piles, a supporting structure is arranged between the supporting cross beams, the supporting structure comprises supporting columns, the two sides of the ends, away from each other, of the supporting columns are symmetrically and fixedly connected with first hinge bases, supporting rods are hinged to the first hinge bases, and one ends of the supporting rods are hinged to second hinge bases; the second hinge seats are fixedly installed on the corresponding supporting cross beams, a tensioning mechanism is arranged between the two corresponding supporting rods, the two ends of the supporting column are connected with the two supporting rods through the first hinge seats, the supporting rods are connected with the two supporting cross beams through the second hinge seats correspondingly, and the first threaded rods are rotated by rotating the first rotating handles; therefore, the two supporting columns are mutually expanded through cooperation of the first threaded sleeves, supporting and supporting are formed, and the supporting structure can support and abut against the upper supporting beam and the lower supporting beam at the same time.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, specifically a foundation pit support structure for civil engineering. Background Technology

[0002] Excavation pit support refers to the support, reinforcement, and protection measures taken for the sidewalls and surrounding environment of an excavation pit to ensure the safety of underground structure construction and the surrounding environment. Excavation pit support is crucial for the stability of the excavation pit construction environment.

[0003] Existing foundation pit support uses a support structure in conjunction with support beams to support the sheet piles on both sides of the foundation pit. Although the above-mentioned existing technology can support the sheet piles, it requires two layers of support mechanisms when supporting the upper and lower layers, resulting in a large number of support mechanisms. Therefore, a civil engineering foundation pit support structure is proposed to optimize the above-mentioned existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a foundation pit support structure for civil engineering projects to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A foundation pit support structure for civil engineering includes sheet piles, supporting beams, and a supporting structure. The sheet piles are embedded on both sides of the foundation pit, the supporting beams rest on the sheet piles, and the supporting structure is arranged between the supporting beams. Positioning blocks are uniformly fixedly connected to both sides of the sheet piles corresponding to the supporting beams. The supporting structure includes supporting columns. A first hinge seat is symmetrically fixedly connected to both sides of the opposite end of the supporting column. A supporting rod is hinged to each of the first hinge seats. A second hinge seat is hinged to one end of each supporting rod. The second hinge seat is fixedly installed on the corresponding supporting beam. A tensioning mechanism is provided between the two corresponding supporting rods. A first rotating handle is rotatably connected to the opposite end of the supporting column, and a first threaded sleeve is fixedly embedded therein. A first threaded rod is fixedly connected to the first rotating handle, and the first threaded rod is inserted into the first threaded sleeve and threadedly connected to the first threaded sleeve.

[0007] As a further embodiment of this utility model: the tensioning mechanism includes a tensioning screw, which passes through a support column and a support rod. The support column has an elongated slot for the tensioning screw to pass through and move, and the support rod has an open slot for the tensioning screw to pass through. The ends of the tensioning screw are all threaded with locking nuts.

[0008] As a further improvement of this utility model: the tensioning screw is fixedly connected to both sides of the support column, and the limit plates slide in contact with the support column. The setting of the limit plates enables the tensioning screw to...

[0009] As a further embodiment of this utility model: a semi-cylindrical groove is provided at the opening groove corresponding to the support rod, the semi-cylindrical groove is connected to the opening groove, a semi-cylindrical block adapted to it is provided in the semi-cylindrical groove, the semi-cylindrical block slides in the semi-cylindrical groove, the semi-cylindrical block is movably penetrated by the tensioning screw, a round hole for the tensioning screw to pass through is provided on the semi-cylindrical block, and a locking nut is abutted against the semi-cylindrical block.

[0010] As a further embodiment of this utility model: the ends of the support columns that are far apart from each other are rotatably connected to a second rotating handle, a second threaded rod is fixedly connected to the second rotating handle, and a second threaded sleeve that is adapted to the outer thread of the second threaded rod is threadedly fitted to it, and the second threaded sleeve is fixedly connected to the corresponding support beam.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, two support rods are connected to both ends of a support column via a first hinge seat. The support rods are connected to two support beams via a second hinge seat. By rotating the first handle, the first threaded rod is rotated, thereby the two support columns are opened up by the engagement of the first threaded sleeve to form a support structure. This allows the support structure to simultaneously support and abut against the upper and lower support beams.

[0013] The tensioning screw of this utility model can move while maintaining a vertical position by extending the groove under the action of the limiting plate. With the cooperation of the locking nut, the support rod can be tensioned, which makes it convenient to tighten the support rod at different opening and closing angles and reduce the lateral force on the positioning block.

[0014] The tensioning screw and locking nut of this invention tension the support rod through the cooperation of the semi-cylindrical groove and the semi-cylindrical block. The semi-cylindrical block can slide in the semi-cylindrical groove, thereby keeping the compression surface of the locking nut horizontal.

[0015] This utility model provides a second rotating handle on the end face of the support column, so that the rotation of the second rotating handle can drive the second threaded rod to rotate, thereby driving the corresponding support beam to abut against the steel sheet pile through the cooperation of the second threaded sleeve, thus forming a three-layer support. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a foundation pit support structure for civil engineering.

[0017] Figure 2 This is a top view of a foundation pit support structure for civil engineering.

[0018] Figure 3 This is a partial top view of a foundation pit support structure in a civil engineering project.

[0019] Figure 4This is a diagram illustrating Example 2 of a foundation pit support structure for civil engineering.

[0020] In the diagram: 1. Sheet pile; 2. Support beam; 3. Support structure; 4. Positioning block; 5. Support column; 6. First hinge seat; 7. Support rod; 8. Second hinge seat; 9. Tensioning mechanism; 10. First rotating handle; 11. First threaded sleeve; 12. First threaded rod; 13. Tensioning screw; 14. Long groove; 15. Opening groove; 16. Locking nut; 17. Limiting plate; 18. Semi-cylindrical groove; 19. Semi-cylindrical block; 20. Second rotating handle; 21. Second threaded rod; 22. Second threaded sleeve. Detailed Implementation

[0021] 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 protection scope of the present utility model.

[0022] Please see Figures 1-3 In this embodiment of the utility model, a foundation pit support structure for civil engineering includes sheet piles 1, supporting beams 2, and supporting structure 3. The sheet piles 1 are embedded on both sides of the foundation pit, the supporting beams 2 abut against the sheet piles 1, and the supporting structure 3 is arranged between the supporting beams 2. Positioning blocks 4 are evenly fixedly connected to both sides of the sheet piles 1 corresponding to the supporting beams 2. The supporting structure 3 includes supporting columns 5. The two ends of the supporting columns 5 that are far apart from each other are symmetrically fixedly connected to first hinge seats 6. Support rods 7 are hinged to the first hinge seats 6. The ends of the support rods 7 are hinged to second hinge seats 8. The second hinge seats 8 are fixedly installed on the corresponding supporting beams 2. A tensioning mechanism 9 is provided between the two supporting rods 7. The ends of the supporting columns 5 that are close to each other are respectively rotatably connected to a first rotating handle 10 and fixedly embedded with a first threaded sleeve 11. A first threaded rod 12 is fixedly connected to the first rotating handle 10. The first threaded rod 12 is inserted into the first threaded sleeve 11 and threadedly connected to the first threaded sleeve 11.

[0023] The tensioning mechanism 9 includes a tensioning screw 13, which passes through a support column 5 and a support rod 7. The support column 5 has a long slot 14 for the tensioning screw 13 to pass through and move, and the support rod 7 has an open slot 15 for the tensioning screw 13 to pass through. The ends of the tensioning screw 13 are threaded with locking nuts 16.

[0024] The tensioning screw 13 is fixedly connected to both sides of the support column 5 with limiting plates 17. The limiting plates 17 slide in contact with the support column 5. The setting of the limiting plates 17 enables the tensioning screw 13 to...

[0025] The support rod 7 has a semi-cylindrical groove 18 at the opening groove 15. The semi-cylindrical groove 18 is connected to the opening groove 15. A semi-cylindrical block 19 is provided in the semi-cylindrical groove 18 and fits and slides in the semi-cylindrical groove 18. The tensioning screw 13 moves through the semi-cylindrical block 19. A round hole is provided on the semi-cylindrical block 19 for the tensioning screw 13 to pass through. The locking nut 16 abuts against the semi-cylindrical block 19. Example

[0026] Please see Figures 1-3 In this embodiment of the utility model, a foundation pit support structure for civil engineering includes sheet piles 1, supporting beams 2, and supporting structure 3. The sheet piles 1 are embedded on both sides of the foundation pit, the supporting beams 2 abut against the sheet piles 1, and the supporting structure 3 is arranged between the supporting beams 2. Positioning blocks 4 are evenly fixedly connected to both sides of the sheet piles 1 corresponding to the supporting beams 2. The supporting structure 3 includes supporting columns 5. The two ends of the supporting columns 5 that are far apart from each other are symmetrically fixedly connected to first hinge seats 6. Support rods 7 are hinged to the first hinge seats 6. The ends of the support rods 7 are hinged to second hinge seats 8. The second hinge seats 8 are fixedly installed on the corresponding supporting beams 2. A tensioning mechanism 9 is provided between the two supporting rods 7. The ends of the supporting columns 5 that are close to each other are respectively rotatably connected to a first rotating handle 10 and fixedly embedded with a first threaded sleeve 11. A first threaded rod 12 is fixedly connected to the first rotating handle 10. The first threaded rod 12 is inserted into the first threaded sleeve 11 and threadedly connected to the first threaded sleeve 11.

[0027] Two support rods 7 are connected to both ends of the support column 5 through the first hinge seat 6. The support rods 7 are connected to the two support beams 2 through the second hinge seat 8 respectively. By rotating the first handle 10, the first threaded rod 12 is rotated, thereby the two support columns 5 are opened apart by the cooperation of the first threaded sleeve 11 to form a support. This allows the support structure 3 to support and abut the upper and lower support beams 2 at the same time, thereby effectively reducing the amount of support structure used.

[0028] The tensioning mechanism 9 includes a tensioning screw 13, which passes through a support column 5 and a support rod 7. The support column 5 has a long slot 14 for the tensioning screw 13 to pass through and move, and the support rod 7 has an open slot 15 for the tensioning screw 13 to pass through. The ends of the tensioning screw 13 are threaded with locking nuts 16.

[0029] The tensioning screw 13 is fixedly connected to both sides of the support column 5 with limiting plates 17. The limiting plates 17 slide in contact with the support column 5. The setting of the limiting plates 17 enables the tensioning screw 13 to...

[0030] The support rod 7 has a semi-cylindrical groove 18 at the opening groove 15. The semi-cylindrical groove 18 is connected to the opening groove 15. A semi-cylindrical block 19 is provided in the semi-cylindrical groove 18 and fits and slides in the semi-cylindrical groove 18. The tensioning screw 13 moves through the semi-cylindrical block 19. A round hole is provided on the semi-cylindrical block 19 for the tensioning screw 13 to pass through. The locking nut 16 abuts against the semi-cylindrical block 19.

[0031] Under the action of the limiting plate 17, the tensioning screw 13 can extend the groove 14 to move while maintaining a vertical state. With the cooperation of the locking nut 16, the support rod 7 can be tensioned, which makes it convenient to tighten the support rod 7 at different opening and closing angles and reduce the lateral force on the positioning block 4.

[0032] The tensioning screw 13 and the locking nut 16 tension the support rod 7 through the cooperation of the semi-cylindrical groove 18 and the semi-cylindrical block 19. The semi-cylindrical block 19 can slide in the semi-cylindrical groove 18, thereby keeping the compression surface of the locking nut 16 horizontal. Example

[0033] Please see Figure 4 In this embodiment of the utility model, a foundation pit support structure for civil engineering includes a second rotating handle 20 rotatably connected to one end of a support column 5 that is far apart from the other. A second threaded rod 21 is fixedly connected to the second rotating handle 20. A second threaded sleeve 22 that is adapted to the outer side of the second threaded rod 21 is threadedly fitted to it. The second threaded sleeve 22 is fixedly connected to the corresponding support beam 2.

[0034] A second rotating handle 20 is provided on the end face of the support column 5, so that the rotation of the second rotating handle 20 can drive the second threaded rod 21 to rotate, thereby driving the corresponding support beam 2 to abut against the steel sheet pile 1 through the cooperation of the second threaded sleeve 22, thus forming a three-layer support.

[0035] The working principle of this utility model is as follows:

[0036] In use, the supporting beam 2 is placed corresponding to the positioning block 4 on the sheet pile 1. At this time, the locking nut 16 is rotated so that the locking nut 16 abuts against the semi-cylindrical block 19. The semi-cylindrical block 19 abuts against the supporting rod 7 through the semi-cylindrical groove 18. At this time, the opening angle of the supporting rod 7 is limited to form a tension effect. The first rotating handle 10 is rotated further, and the first rotating handle 10 drives the first threaded rod 12 to rotate. The first threaded rod 12 drives the two supporting columns 5 to move away from each other through the cooperation of the first threaded sleeve 11, thereby forming a support effect. The second rotating handle 20 is rotated further, so that the second threaded rod 21 rotates. Under the action of the second threaded sleeve 22, the supporting beam 2 abuts against the sheet pile 1, thereby forming a synchronous support structure of three supporting beams 2.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foundation pit support structure for civil engineering, comprising sheet piles (1), supporting beams (2), and supporting structure (3), characterized in that: The sheet piles (1) are embedded on both sides of the foundation pit. The supporting beams (2) rest on the sheet piles (1). The supporting structure (3) is set between the supporting beams (2). The sheet piles (1) are uniformly fixedly connected to both sides of the supporting beams (2). The supporting structure (3) includes supporting columns (5). The two sides of the opposite ends of the supporting columns (5) are symmetrically fixedly connected to first hinge seats (6). Support rods (7) are hinged to the first hinge seats (6). One end of the support rods (7) is... A second hinge seat (8) is hinged and fixedly installed on the corresponding support beam (2). A tensioning mechanism (9) is provided between the two corresponding support rods (7). The ends of the support columns (5) that are close to each other are respectively rotatably connected to a first rotating handle (10) and a first threaded sleeve (11) is fixedly embedded. A first threaded rod (12) is fixedly connected to the first rotating handle (10). The first threaded rod (12) is inserted into the first threaded sleeve (11) and threadedly connected to the first threaded sleeve (11).

2. The foundation pit support structure for civil engineering according to claim 1, characterized in that: The tensioning mechanism (9) includes a tensioning screw (13), which passes through a support column (5) and a support rod (7). The support column (5) has a long slot (14) for the tensioning screw (13) to pass through and move, and the support rod (7) has an open slot (15) for the tensioning screw (13) to pass through. The ends of the tensioning screw (13) are threaded with locking nuts (16).

3. The foundation pit support structure for civil engineering according to claim 2, characterized in that: The tensioning screw (13) is fixedly connected to two sides of the support column (5) with limiting plates (17), and the limiting plates (17) slide in contact with the support column (5).

4. The foundation pit support structure for civil engineering according to claim 2, characterized in that: The support rod (7) has a semi-cylindrical groove (18) at the opening groove (15). The semi-cylindrical groove (18) is connected to the opening groove (15). A semi-cylindrical block (19) is provided in the semi-cylindrical groove (18) and is adapted to it. The semi-cylindrical block (19) is movably penetrated by the tensioning screw (13). The locking nut (16) abuts against the semi-cylindrical block (19).

5. The foundation pit support structure for civil engineering according to claim 1, characterized in that: The supporting column (5) is rotatably connected to a second rotating handle (20) at one end away from each other. A second threaded rod (21) is fixedly connected to the second rotating handle (20). A second threaded sleeve (22) is fitted on the outer side of the second threaded rod (21). The second threaded sleeve (22) is fixedly connected to the corresponding supporting beam (2).

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