Foundation pit slope supporting structure and construction method thereof

Abstract

The application relates to the technical field of slope supporting, and provides a foundation pit slope supporting structure and a construction method thereof. The supporting structure comprises a box arranged on a slope body, a fixed plate arranged on one side of the box away from the slope body, a first sliding groove and a second sliding groove sequentially arranged on the bottom surface of the slope body along the length direction of the box, a plurality of first fixing mechanisms equally and interval arranged in the first sliding groove, a plurality of second fixing mechanisms equally and interval arranged in the second sliding groove, and the second fixing mechanism is matched with the fixed plate. The construction method comprises the following steps: installing the box, connecting the box with the slope body; installing the fixed plate, connecting the fixed plate with the box and the slope body respectively; installing the first fixing mechanism, fixing the fixed plate through the first fixing mechanism; and installing the second fixing mechanism, fixing the fixed plate through the second fixing mechanism. The stability of the slope can be improved.

Description

Technical Field

[0001] This invention relates to the field of slope protection technology, and in particular to a foundation pit slope protection structure and its construction method. Background Technology

[0002] Slope protection refers to the measures taken to support, reinforce, and protect slopes to ensure their safety and the safety of their environment. Currently, foundation pit construction is common in building projects. In areas with soft soil, poor stability, and abundant groundwater, such as the silty soil conditions in northern my country, the stability of foundation pit slopes is relatively poor. Even with relatively shallow pits and gentle slopes, the slope surface is prone to collapse and slippage under the influence of rainwater infiltration or vibrations generated during construction. This causes excavated soil to fall to the bottom of the pit, affecting the safety of the construction project.

[0003] Currently, the common method for supporting foundation pit slopes is to lay a layer of wire mesh on the slope, then inject soil nails into the slope using sandblasting equipment, and at the same time spray a layer of concrete surface onto the slope, combined with wire mesh support. This support structure is simple but has poor stability.

[0004] Therefore, in order to address the above problems, a foundation pit slope support structure and its construction method are proposed to solve these problems. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by developing a foundation pit slope support structure and its construction method, which can improve the stability of the foundation pit slope support structure.

[0006] The technical solution to the problem solved by this invention is as follows: This invention provides a foundation pit slope support structure and its construction method, including a box body installed on the slope body, and also including a fixing plate, a first fixing mechanism, and a second fixing mechanism. The fixing plate is installed on the side of the box body away from the slope body. The bottom surface of the slope body is provided with a first chute and a second chute along the length of the box body. The first chute is located close to the slope body. Several first fixing mechanisms are slidably arranged at equal intervals in the first chute. Several second fixing mechanisms are slidably arranged at equal intervals in the second chute. The second fixing mechanisms are adapted to the fixing plate.

[0007] As an optimization, the first fixing mechanism includes a first slider, a first hinge seat, a first connecting plate, a second hinge seat, and a first connecting rod. Several first sliders are slidably arranged at equal intervals in the first slide groove. The first hinge seat is provided on the top of the first slider. The first connecting plate is arranged on the side of the fixing plate away from the box body along the length direction of the box body. A third slide groove is opened on the first connecting plate. Several second hinge seats are slidably arranged at equal intervals in the third slide groove. The positions of the first hinge seats and the second hinge seats correspond to each other and the number is the same. The first connecting rod is hinged between the first hinge seat and the adjacent second hinge seat. A first limiting part is provided between the first slider and the first slide groove.

[0008] As an optimization, several first through holes are evenly spaced on the side of the first slide groove away from the housing. The first slider is hollow, and the first limiting part is located in the hollow part of the first slider. The first limiting part includes a second connecting plate, a first limiting rod, a third connecting plate, and a first spring. The first limiting rod is slidably disposed in the first through hole adjacent to it and passes through the first slider. The side of the first limiting rod away from the first through hole is connected to a first driving member through a first connecting seat. The second connecting plate is disposed on the side of the first slider close to the first through hole. There are two second connecting plates, which are respectively located on both sides of the first limiting rod. A first spring is disposed between the two second connecting plates and the first limiting rod. One end of the first spring is connected to the inner wall of the side of the first slider away from the housing, and the other end is connected to the third connecting plate. The third connecting plate is disposed perpendicular to the first limiting rod and is fixed to the first limiting rod.

[0009] As an optimization, the first driving component includes a first motor, a first turntable, a second connecting rod, a connecting rope, and a guide wheel. The first motor and the guide wheel are both located inside the first slider. The first turntable is located at the output end of the first motor. The second connecting rod is eccentrically located on the side of the first turntable away from the first motor. The guide wheel is located below the second connecting rod. One end of the connecting rope is connected to the side of the second connecting rod away from the first turntable. The other end of the connecting rope passes through the guide wheel and is connected to the end of the first limiting rod through the first connecting seat.

[0010] As an optimization, the second fixing mechanism includes a third connecting rod, a fourth connecting rod, and a second connecting seat. The second connecting seat is slidably connected to the top surface of the second slide groove. The third connecting rod is slidably disposed in the second slide groove and is disposed on the second connecting seat. The third connecting rod is slidably disposed along the direction perpendicular to the length of the box body. The fourth connecting rod abuts against the fixing plate and is located above the third slide groove. The third connecting rod is provided with a second limiting part, which is adapted to the fourth connecting rod.

[0011] As an optimization, several first threaded holes are provided at equal intervals on both sides of the second slide, and the two sides of the second connecting seat are threadedly connected to the first threaded holes by first screws.

[0012] As an optimization, the second limiting part includes a fourth sliding groove, a second driving member, a fifth connecting rod, and a first limiting hole. The first limiting hole is opened on the top of the fourth connecting rod near the third connecting rod. The fourth sliding groove is opened on the top of the third connecting rod near the fixing plate. The fourth sliding groove is located above the fourth connecting rod. The second driving member is located at the top of the fourth sliding groove. The output end of the second driving member is rotatably set with the fifth connecting rod. The fifth connecting rod is engaged with the first limiting hole.

[0013] As an optimization, the second driving component includes a second motor, a lead screw, and a lead screw that is driven by the lead screw. The second motor is located at the top of the fourth slide groove, and the lead screw is located at the output end of the second motor. The lead screw is located in the fourth slide groove along the length direction of the third connecting rod, and a fifth connecting rod is rotatably mounted on the lead screw via a lead screw seat.

[0014] As an optimization, several second limit rods are evenly spaced on the top surface of the box.

[0015] A construction method for a foundation pit slope protection structure and the same method, applicable to any of the foundation pit slope protection structures described above, includes the following steps: S1. Install the box body and connect it to the slope body; S2. Install the fixing plate and connect it to the box body and the slope body respectively; S3. Install the first fixing mechanism to fix the fixing plate. S4. Install the second fixing mechanism to fix the fixing plate.

[0016] The effects described in the invention are merely those of the embodiments, and not all the effects of the invention. The above technical solutions have the following advantages or beneficial effects: The box body is connected to the slope body, and the box body is used to initially fix the slope body. Then, the box body is fixed by fixing plates. After fixing, the fixing plates are fixed by the first fixing mechanism and the second fixing mechanism respectively, which increases the stability of the connection between the fixing plate and the box body, thereby increasing the stability of the slope body. This invention can improve the stability of the foundation pit slope support structure and further improve the stability of the slope. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the foundation pit slope support structure of the present invention; Figure 2 This is a side view of the foundation pit slope support structure of the present invention; Figure 3for Figure 2 A magnified view of part A in the image; Figure 4 for Figure 2 A magnified view of part B in the image.

[0019] In the diagram, 1. Slope body; 2. Box body; 3. Fixing plate; 4. First slide groove; 5. Second slide groove; 6. First slider; 7. First hinge seat; 8. First connecting plate; 9. Third slide groove; 10. Second hinge seat; 11. First connecting rod; 12. First through hole; 13. Second connecting plate; 14. First limiting rod; 15. Third connecting plate; 16. First spring; 17. First motor; 18. First turntable; 19. Second connecting... 20. Rod; 21. Connecting rope; 22. Guide wheel; 23. First connecting seat; 24. Third connecting rod; 25. Fourth connecting rod; 26. First threaded hole; 27. Second connecting seat; 28. First screw; 29. ​​Fourth sliding groove; 30. Nut; 31. Fifth connecting rod; 32. Third connecting seat; 33. First limiting hole; 34. Second motor; 35. Lead screw; 36. Second limiting rod; 37. Third limiting rod; 38. Fourth limiting rod. Detailed Implementation

[0020] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure of the invention, components and arrangements of specific examples are described below. Furthermore, reference numerals and / or letters may be repeated in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted to avoid unnecessarily limiting the invention. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] like Figures 1 to 4 As shown, a foundation pit slope support structure and its construction method include a box 2 installed on the slope body 1, a fixing plate 3, a first fixing mechanism, and a second fixing mechanism. The fixing plate 3 is installed on the side of the box body 2 away from the slope body 1. The bottom surface of the slope body 1 is sequentially provided with a first sliding groove 4 and a second sliding groove 5 along the length of the box body 2. The first sliding groove 4 is located close to the slope body 1. Several first fixing mechanisms are slidably arranged at equal intervals in the first sliding groove 4. Several second fixing mechanisms are slidably arranged at equal intervals in the second sliding groove 5. The second fixing mechanisms are adapted to the fixing plate 3.

[0022] The box body 2 is connected to the slope body 1. The box body 2 is used to initially fix the slope body 1. Then, the box body 2 is fixed by the fixing plate 3. After the fixing is completed, the fixing plate 3 is fixed by the first fixing mechanism and the second fixing mechanism respectively, which increases the stability of the connection between the fixing plate 3 and the box body 2, thereby increasing the stability of the slope body 1.

[0023] In this embodiment, the first fixing mechanism includes a first slider 6, a first hinge seat 7, a first connecting plate 8, a second hinge seat 10, and a first connecting rod 11. A plurality of first sliders 6 are slidably arranged at equal intervals within the first slide groove 4. The first hinge seat 7 is located on the top of each first slider 6. The first connecting plate 8 is positioned along the length of the housing 2 on the side of the fixing plate 3 away from the housing 2. A third slide groove 9 is formed on the first connecting plate 8. A plurality of second hinge seats 10 are slidably arranged at equal intervals within the third slide groove 9. The positions of the first hinge seats 7 and the second hinge seats 10 correspond to each other and are the same in number. The first connecting rod 11 is hinged between the first hinge seat 7 and its adjacent second hinge seat 10. A first limiting part is provided between the first slider 6 and the first slide groove 4. The first connecting rod 11 is used to support the fixing plate 3. The position of the first slider 6 can move within the first slide groove 4, and the position of the second hinge seats 10 can also move accordingly to change the support position on the fixing plate 3.

[0024] A plurality of first through holes 12 are equally spaced on the side of the first slide groove 4 away from the housing 2. The first slider 6 is hollow. The first limiting part is located in the hollow part of the first slider 6. The first limiting part includes a second connecting plate 13, a first limiting rod 14, a third connecting plate 15 and a first spring 16. The first limiting rod 14 is slidably disposed in the first through hole 12 adjacent to it and passes through the first slider 6. The side of the first limiting rod 14 away from the first through hole 12 is connected to a first driving member through a first connecting seat 22. The second connecting plate 13 is disposed in the first slider 6 on the side close to the first through hole 12. There are two second connecting plates 13, which are respectively located on both sides of the first limiting rod 14. A first spring 16 is disposed between the two second connecting plates 13 and the first limiting rod 14. One end of the first spring 16 is connected to the inner wall of the side of the first slider 6 away from the housing 2, and the other end is connected to the third connecting plate 15. The third connecting plate 15 is disposed perpendicular to the first limiting rod 14 and is fixed to the first limiting rod 14.

[0025] In this embodiment, the first driving component includes a first motor 17, a first turntable 18, a second connecting rod 19, a connecting rope 20, and a guide wheel 21. The first motor 17 and the guide wheel 21 are both disposed inside the first slider 6. The first turntable 18 is disposed at the output end of the first motor 17. The second connecting rod 19 is eccentrically disposed on the side of the first turntable 18 away from the first motor 17. The guide wheel 21 is located below the second connecting rod 19. One end of the connecting rope 20 is connected to the side of the second connecting rod 19 away from the first turntable 18. The other end of the connecting rope 20 passes through the guide wheel 21 and is connected to the end of the first limiting rod 14 through the first connecting seat 22. When the position of the first slider 6 needs to be adjusted, the first motor 17 is started. The output shaft of the first motor 17 drives the first turntable 18 to rotate. The first turntable 18 drives the second connecting rod 19 to rotate. The second connecting rod 19 drives the connecting rope 20 to move. The connecting rope 20 pulls the first limiting rod 14 away from the first through hole 12 adjacent to it. The first slider 6 slides. After the sliding is completed, the first motor 17 is rotated in the opposite direction. The connecting rope 20 moves in the opposite direction. The first limiting rod 14 enters the first through hole 12 adjacent to it under the action of the first spring 16, thus completing the limiting of the first slide groove 4.

[0026] In this embodiment, the second fixing mechanism includes a third connecting rod 23, a fourth connecting rod 24, and a second connecting seat 26. The second connecting seat 26 is slidably connected to the top surface of the second slide groove 5. The third connecting rod 23 is slidably disposed in the second slide groove 5 and is disposed on the second connecting seat 26. The third connecting rod 23 is slidably disposed along the direction perpendicular to the length of the housing 2, and the fourth connecting rod 24 abuts against the fixing plate 3. The fourth connecting rod 24 is located above the third slide groove 9. The third connecting rod 23 is provided with a second limiting part, which is adapted to the fourth connecting rod 24.

[0027] Several first threaded holes 25 are equally spaced on both sides of the second slide groove 5, and the two sides of the second connecting seat 26 are threadedly connected to the first threaded holes 25 by first screws 27.

[0028] The second limiting part includes a fourth sliding groove 28, a second driving member, a fifth connecting rod 30, and a first limiting hole 32. The first limiting hole 32 is opened on the top of the fourth connecting rod 24 near the third connecting rod 23. The fourth sliding groove 28 is opened on the top of the third connecting rod 23 near the fixing plate 3. The fourth sliding groove 28 is located above the fourth connecting rod 24. The second driving member is located at the top of the fourth sliding groove 28. The output end of the second driving member is rotatably connected to the fifth connecting rod 30. The fifth connecting rod 30 is engaged with the first limiting hole 32.

[0029] The second driving component includes a second motor 33, a lead screw 29, and a lead screw 34 connected to the lead screw 29. The second motor 33 is located at the top of the fourth slide groove 28, and the lead screw 34 is located at the output end of the second motor 33. The lead screw 34 is located in the fourth slide groove 28 along the length of the third connecting rod 23. A fifth connecting rod 30 is rotatably mounted on the lead screw 29 via a lead screw seat. When it is necessary to limit the fourth connecting rod 24, the fifth connecting rod 30 is first removed from the fourth slide groove 28, and then the second motor 33 is started. The output shaft of the second motor 33 drives the lead screw 34 to rotate, and the lead screw 34 drives the lead screw 29 to descend. The fifth connecting rod 30 descends and contacts the fourth connecting rod 24. As the lead screw 29 continues to descend, the fifth connecting rod 30 gradually approaches the third connecting seat 31 and enters the first limiting hole 32.

[0030] In this embodiment, a number of second limiting rods 35 are evenly spaced on the top surface of the box 2.

[0031] A construction method for a foundation pit slope protection structure and the same method, applicable to any of the foundation pit slope protection structures described above, includes the following steps: S1. Install box 2 and connect box 2 to slope body 1; S2. Install fixing plate 3 and connect fixing plate 3 to box body 2 and slope body 1 respectively; S3. Install the first fixing mechanism to fix the fixing plate 3. S4. Install the second fixing mechanism to fix the fixing plate 3.

[0032] Although the specific embodiments of the invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the invention. Based on the technical solutions of the invention, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the invention.

Claims

1. A foundation pit slope support structure, comprising a box (2) mounted on the slope body (1), characterized in that: It also includes a fixing plate (3), a first fixing mechanism, and a second fixing mechanism; The fixing plate (3) is set on the side of the box body (2) away from the slope body (1); The bottom surface of the slope body (1) is provided with a first sliding groove (4) and a second sliding groove (5) in sequence along the length direction of the box body (2). The first sliding groove (4) is set close to the slope body (1). Several first fixing mechanisms are slidably arranged at equal intervals in the first sliding groove (4). Several second fixing mechanisms are slidably arranged at equal intervals in the second sliding groove (5). The second fixing mechanisms are adapted to the fixing plate (3). The first fixing mechanism includes a first slider (6), a first hinge seat (7), a first connecting plate (8), a second hinge seat (10), and a first connecting rod (11). Several first sliders (6) are slidably arranged in the first groove (4) at equal intervals. The first hinge seat (7) is provided on the top of the first slider (6). The first connecting plate (8) is arranged along the length direction of the box (2) on the side of the fixing plate (3) away from the box (2). A third groove (9) is opened on the first connecting plate (8). Several second hinge seats (10) are slidably arranged in the third groove (9) at equal intervals. The positions of the first hinge seat (7) and the second hinge seat (10) are corresponding to each other and the number is the same. The first connecting rod (11) is hinged between the first hinge seat (7) and the second hinge seat (10) adjacent to it. A first limiting part is provided between the first slider (6) and the first groove (4). A number of first through holes (12) are equally spaced on the side of the first slide groove (4) away from the box body (2). The first slider (6) is hollow. The first limiting part is located in the hollow part of the first slider (6). The first limiting part includes a second connecting plate (13), a first limiting rod (14), a third connecting plate (15), and a first spring (16). The first limiting rod (14) is slidably disposed in the first through hole (12) adjacent to it and passes through the first slider (6). The side of the first limiting rod (14) away from the first through hole (12) is connected to the first connecting seat (22) by a first connecting seat (22). The driving component, the second connecting plate (13) is set inside the first slider (6) on the side near the first through hole (12). There are two second connecting plates (13), which are respectively located on both sides of the first limiting rod (14). A first spring (16) is set between the two second connecting plates (13) and the first limiting rod (14). One end of the first spring (16) is connected to the inner wall of the first slider (6) away from the box (2), and the other end is connected to the third connecting plate (15). The third connecting plate (15) is set perpendicular to the first limiting rod (14) and is fixed to the first limiting rod (14).

2. The foundation pit slope protection structure according to claim 1, characterized in that: The first driving component includes a first motor (17), a first turntable (18), a second connecting rod (19), a connecting rope (20), and a guide wheel (21). The first motor (17) and the guide wheel (21) are both located inside the first slider (6). The first turntable (18) is located at the output end of the first motor (17). The second connecting rod (19) is eccentrically located on the side of the first turntable (18) away from the first motor (17). The guide wheel (21) is located below the second connecting rod (19). One end of the connecting rope (20) is connected to the side of the second connecting rod (19) away from the first turntable (18). The other end of the connecting rope (20) passes through the guide wheel (21) and is connected to the end of the first limiting rod (14) through the first connecting seat (22).

3. The foundation pit slope protection structure according to claim 1, characterized in that: The second fixing mechanism includes a third connecting rod (23), a fourth connecting rod (24), and a second connecting seat (26). The second connecting seat (26) is slidably connected to the top surface of the second slide groove (5). The third connecting rod (23) is slidably disposed in the second slide groove (5) and disposed on the second connecting seat (26). The third connecting rod (23) is slidably disposed with the fourth connecting rod (24) along the length direction perpendicular to the box body (2). The fourth connecting rod (24) abuts against the fixing plate (3). The fourth connecting rod (24) is located above the third slide groove (9). The third connecting rod (23) is provided with a second limiting part, which is adapted to the fourth connecting rod (24).

4. The foundation pit slope protection structure according to claim 3, characterized in that: The second slide (5) has several first threaded holes (25) at equal intervals on both sides. The two sides of the second connecting seat (26) are threadedly connected to the first threaded holes (25) by first screws (27).

5. The foundation pit slope protection structure according to claim 3, characterized in that: The second limiting part includes a fourth sliding groove (28), a second driving member, a fifth connecting rod (30), and a first limiting hole (32). The first limiting hole (32) is opened on the side of the top of the fourth connecting rod (24) near the third connecting rod (23). The fourth sliding groove (28) is opened on the side of the top of the third connecting rod (23) near the fixing plate (3). The fourth sliding groove (28) is located above the fourth connecting rod (24). The second driving member is located at the top of the fourth sliding groove (28). The output end of the second driving member is rotatably set with the fifth connecting rod (30). The fifth connecting rod (30) is engaged with the first limiting hole (32).

6. The foundation pit slope protection structure according to claim 5, characterized in that: The second driving component includes a second motor (33), a lead screw (29), and a lead screw (34) that is connected to the lead screw (29) for transmission. The second motor (33) is located at the top of the fourth slide groove (28), and the lead screw (34) is located at the output end of the second motor (33). The lead screw (34) is located in the fourth slide groove (28) along the length direction of the third connecting rod (23). The fifth connecting rod (30) is rotatably mounted on the lead screw (29) through the lead screw seat.

7. The foundation pit slope protection structure according to claim 1, characterized in that: Several second limiting rods (35) are evenly spaced on the top surface of the box (2).

8. A construction method for a foundation pit slope protection structure and the same, applicable to the foundation pit slope protection structure described in any one of claims 1-7, characterized in that: Includes the following steps: S1. Install the box (2) and connect the box (2) to the slope body (1); S2. Install the fixing plate (3) and connect the fixing plate (3) to the box body (2) and the slope body (1) respectively; S3. Install the first fixing mechanism to fix the fixing plate (3); S4. Install the second fixing mechanism to fix the fixing plate (3).

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