Foundation pit slope supporting device

Abstract

The utility model discloses a foundation pit slope supporting device which comprises a reinforcing mesh arranged on a slope surface, the two ends of the reinforcing mesh extend to the slope top and the slope bottom respectively, a plurality of first enclosure parts are arranged at the upper end of the reinforcing mesh laid on the slope top, the adjacent first enclosure parts are spliced with each other, and each first enclosure part comprises a first enclosure plate. The first enclosure plate is attached to the upper end of the slope surface, a plurality of second enclosure pieces are arranged at the upper end of a reinforcing mesh laid on the slope bottom, the adjacent second enclosure pieces are spliced with each other, the second enclosure pieces comprise second enclosure plates, the second enclosure plates are attached to the lower end of the slope surface, and supports are connected between the first enclosure plates and the second enclosure plates; according to the device, the safety protection work on the surface of a slope body can be achieved, the firm and stable protection effect on the side slope can be achieved, and the structural strength of the slope body is improved.

Description

Technical Field

[0001] The utility model relates to a foundation pit slope supporting device. Background Art

[0002] In engineering practice, the commonly used measures for slope protection include mortar or cement plastering, spraying, sprayed concrete, mortar-laid stone retaining wall, anchor spraying slope protection, anchor spraying net slope protection, etc. These measures are mainly used to protect the excavated slope surface from weathering and peeling, fragmentation, and a small amount of falling rocks. At present, there are many types of retaining structures, such as retaining walls, anchor retaining walls, anti-slide piles, etc. For example, the patent application number is CN202122977147.4, and the name is a reinforced concrete structure for slope protection, including an in-service retaining wall; a connection component, including a connection plate, a platform plate, and a reinforcement plate. The connection plate is set against one side of the in-service retaining wall, the platform plate is vertically set on one side of the connection plate, and the reinforcement plate is fixed on the top side of the reinforcement plate, and is clamped on the top side of the in-service retaining wall; a concrete reinforcement column is fixed on one side of the in-service retaining wall and the reinforcement plate, and the concrete reinforcement column, the in-service retaining wall, and the reinforcement plate are connected into one by a transverse anchor cable; a grouting pipe is fixed on the bottom side of the platform plate. Although the safety and stability of the slope are improved, a large amount of steel bars, concrete and other materials are consumed, and the construction materials cannot be recycled. In addition, the construction period is long, and more equipment needs to be invested in projects with tight construction period requirements, which will affect the construction progress and cause material waste. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a foundation pit slope support device, which can achieve safe protection of the slope surface, can achieve a firm and stable protection effect on the slope, and improve the structural strength of the slope. Moreover, the entire device is convenient and quick to install and disassemble, thereby realizing the reuse and repeated utilization of the slope support device, reducing construction costs, reducing resource waste, and achieving green and sustainable development.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit slope support device, comprising a steel mesh arranged on the slope surface, wherein the two ends of the steel mesh extend to the top and the bottom of the slope respectively, a plurality of first guardrails are provided on the upper end of the steel mesh laid on the top of the slope, and adjacent first guardrails are spliced ​​with each other, the first guardrails include a first guardrail plate, which is fitted with the upper end of the slope surface, a plurality of second guardrails are provided on the upper end of the steel mesh laid on the bottom of the slope, and adjacent second guardrails are spliced ​​with each other, the second guardrails include a second guardrail plate, which is fitted with the lower end of the slope surface, a bracket is connected between the first guardrail plate and the second guardrail plate, and the bracket is provided with an anchor rod obliquely anchored in the soil.

[0005] Furthermore, the second guard member includes a second horizontal plate that fits with the bottom of the slope, the second horizontal plate is symmetrically provided with second sliding grooves, the second sliding grooves are provided with second sliding rods, one end of the second sliding rod is slidably connected to the second sliding grooves, and the other end is hinged to the second guard plate, a second active pushing member for adjusting the inclination angle of the second guard plate is provided in the middle of the second horizontal plate, and the side walls of the second horizontal plate are provided with second connecting members for clamping with adjacent second horizontal plates.

[0006] Furthermore, the first guard member includes a first transverse plate that fits with the top of the slope, the first transverse plate is symmetrically provided with a first slide groove, the first slide groove is provided with a first slide rod, one end of the first slide rod is slidingly connected to the first slide groove, and the other end is slidingly connected to the symmetrical groove of the first guard plate, a first active pushing member for adjusting the inclination angle of the first guard plate is provided in the middle of the first transverse plate, and the side walls of the first transverse plate are provided with a first connecting member for clamping with the adjacent first transverse plate.

[0007] Furthermore, the first active pushing member and the second pushing member both include a column with a hole arranged on the horizontal plate, a pushing rod is inserted into the hole, one end of the pushing rod is connected to the first protective plate / second protective plate, and the other end is provided with a driving member, and the driving member is used to drive the pushing rod to move along the direction of the hole.

[0008] Furthermore, the pushing rod of the first active pushing member is slidingly connected to the first slot of the first protective plate, and the pushing rod of the first active pushing member is rotatably connected with a moving member for driving the first protective plate to move along the inclination direction of the slope, and the moving member includes a threaded rod, and the threaded rod is threadedly connected to the threaded hole on the first slot, and the first protective plate is moved along the direction of the first threaded rod by rotating the threaded rod.

[0009] Furthermore, the first connecting member and the second connecting member each include a plurality of special-shaped grooves opened on one side of the first transverse plate and the second transverse plate and a rotating rod provided on the other side, special-shaped blocks are connected to the corresponding special-shaped grooves on the rotating rod, and elastic blocks are provided on the upper end surfaces of the special-shaped grooves.

[0010] Furthermore, the bracket includes a first vertical rod slidably connected to the first enclosure plate and a second vertical rod slidably connected to the second enclosure plate, the first vertical rod and the second vertical rod ends are plugged into each other to form a first concave groove, a first through hole is provided at the bottom of the first concave groove and a clamping groove is provided on the side wall of the first concave groove, a cross rod is clamped at the first concave groove, the cross rod is provided with a second through hole corresponding to the first through hole, and the second through hole is provided with a telescopic clamping block corresponding to the clamping groove, when the anchor rod enters the second through hole, it pushes the telescopic clamping block to clamp with the clamping groove.

[0011] Furthermore, the first vertical rod and the second vertical rod are provided with a plurality of second concave grooves along the length of the vertical rods.

[0012] Furthermore, the anchor rod includes a hollow grouting anchor rod body, a grouting channel is provided in the hollow grouting anchor rod body, the anchor head at the front end of the hollow grouting anchor rod body is conical, a plurality of clamping parts are provided on the side of the anchor head, and the clamping parts are distributed in a circle with the center line of the front end of the anchor head as the center, a plurality of grouting holes are provided on the hollow grouting anchor rod to connect the grouting channel, a grouting hole is provided at the end of the hollow grouting anchor rod to connect the grouting channel, a grouting plug is provided at the end of the hollow grouting anchor rod, a groove is provided on the grouting plug, and a connecting plate is provided at the groove.

[0013] Beneficial effects:

[0014] 1. By combining and fixing multiple first enclosures, second enclosures and brackets together to form an overall slope protection structure, the safety protection of the slope surface can be achieved, the firm and stable protection effect of the slope can be achieved, the structural strength of the slope can be improved, and the entire device can be installed and disassembled conveniently and quickly, so that the slope support device can be reused and reused, construction costs can be reduced, resource waste can be reduced, and green and sustainable development can be achieved.

[0015] 2. Both the first enclosure and the second enclosure are adjustable and can achieve different inclination angles to adapt to slopes of different slopes. At the same time, the slope support structure is simple and has consistent dimensions. It can improve production efficiency and reduce production costs during prefabrication. At the same time, the detachable structure is conducive to saving space during transportation and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the foundation pit slope support device;

[0017] Figure 2 for Figure 1 Side view of

[0018] Figure 3 It is a schematic diagram of a foundation pit slope supporting device with a plurality of second concave grooves;

[0019] Figure 4 for Figure 3 Side view of

[0020] Figure 5 is a schematic diagram of the connection between the first enclosure plate and the moving part;

[0021] Figure 6 is the schematic diagram of the anchor rod;

[0022] Figure 7 Schematic diagram of the connection between the horizontal bar and the vertical bar.

[0023] Figure numerals: 1, steel mesh; 2, first enclosure; 21, first enclosure plate; 22, first transverse plate; 23, first slide groove; 24, first slide bar; 25, first active push member; 26, first connecting member; 27, first slot; 3, second enclosure; 31, second enclosure plate; 32, second transverse plate; 33, second slide groove; 34, second slide bar; 35, second active push member; 36, second connecting member; 4, column; 5, Push rod; 6. driving member; 7. moving member; 71. threaded rod; 8. special-shaped groove; 9. rotating rod; 10. special-shaped block; 11. bracket; 111. second vertical rod; 112. first vertical rod; 113. L-shaped block; 114. first concave groove; 115. first through hole; 116. cross rod; 117. second through hole; 118. telescopic clamping block; 12. anchor rod; 121. grouting channel; 122. clamping part; 13. second concave groove. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] Refer to Figure 1-Figure 7As shown, the utility model provides a foundation pit slope support device. In order to prevent the weathering, peeling, and fragmentation of rocks on the slope surface, as well as a small amount of falling rocks, a steel mesh 1 is laid on the slope surface. The two ends of the steel mesh 1 extend to the top and bottom of the slope. The upper end of the steel mesh 1 laid on the top of the slope is provided with a plurality of first enclosure members 2, and adjacent enclosure members are spliced ​​with each other. The first enclosure member 2 includes a first enclosure plate 21, which fits with the upper end of the slope surface, and is also provided with a first cross plate 22 which fits with the top of the slope. The first cross plate 22 and the last cross plate 22 are both connected to the soil layer by vertical bolts. The first cross plate 22 is symmetrically provided with a first slide groove 23, and a waist-shaped groove is opened on the side of the first slide groove 23. A first slide rod 24 is provided on the first slide groove 23. The first slide rod 24 is provided with a slider corresponding to the waist-shaped groove and is slidably connected to the waist-shaped groove. The first slide rod 24 is also provided with a slider corresponding to the waist-shaped groove. The outer end is slidably connected to the symmetrical groove of the first guard plate 21, and the side of the symmetrical groove is provided with a waist-shaped groove. A sliding block is provided on the side of the first slide rod 24 corresponding to the waist-shaped groove. A first active pushing member 25 for adjusting the inclination angle of the first guard plate 21 is provided in the middle of the first cross plate 22. A moving member 7 for driving the first guard plate 21 to move along the slope direction is provided on the first active pushing member 25. The side walls of the first cross plate 22 are provided with a first connecting member 26 for clamping with the adjacent first cross plate 22. A plurality of second retaining members 3 are provided at the upper end of the steel mesh 1 laid on the bottom of the slope, and adjacent second retaining members 3 are spliced ​​with each other. The second retaining members 3 include a second transverse plate 32 that fits the bottom of the slope. The first second transverse plate 32 and the last second transverse plate 32 are connected to the soil layer through vertical bolts. Second slide grooves 33 are symmetrically opened on the second transverse plates 32, and second slide rods 34 are provided on the second slide grooves 33. One end of the second slide rod 34 is slidably connected to the second slide grooves 33, and the other end is hinged to the second retaining plate 31. A second active pushing member 35 for adjusting the inclination angle of the second retaining plate 31 is provided in the middle part of the second transverse plate 32, and the side walls of the second transverse plates 32 are provided with second connecting members 36 for clamping with adjacent second transverse plates 32.

[0026] Refer to Figure 1-Figure 4 As shown, the first active pusher 25 and the second active pusher 35 both include a column with a hole disposed on a horizontal plate.

[0027] 4, a pushing rod 5 is inserted into the hole, the pushing rod 5 of the second active pushing member 35 is hinged to the second enclosure plate 31, the pushing rod 5 of the first active pushing member 25 is slidably connected to the first slot 27 of the first enclosure plate 21, and the other ends of the pushing rod 5 of the first active pushing member 25 and the pushing rod 5 of the second active pushing member 35 are provided with a driving member 6, and the driving member 6 is used to drive the pushing rod 5 to move along the direction of the hole. The driving member 6 is driven by a motor to move the pushing rod 5 or is driven by a hydraulic rod, or can be driven by the meshing of a rack and pinion.

[0028] Refer to Figure 1-Figure 5As shown, the pushing rod 5 of the first active pushing rod 5 is rotatably connected with a moving part 7 for driving the first enclosure plate 21 to move along the inclination direction of the slope. The moving part 7 includes a threaded rod 71. One end of the threaded rod 71 is spherical and rotatably connected to the spherical groove of the pushing rod 5. The other end of the threaded rod 71 is threadedly connected to the threaded hole on the first slot 27. The first enclosure plate 21 is moved and fits the upper end of the slope by rotating the threaded rod 71.

[0029] Refer to Figure 3 , Figure 4 As shown, in order to strengthen the tightness of the connection between the first enclosure 2 and the second enclosure 3, the first connecting member 26 and the second connecting member 36 are arranged. The first connecting member 26 and the second connecting member 36 both include a plurality of special-shaped grooves 8 opened on one side of the first cross plate 22 and the second cross plate 32 and a rotating rod 9 provided on the other side. Special-shaped blocks 10 are connected to the special-shaped grooves 8 corresponding to the special-shaped grooves 8 on the rotating rod 9. Elastic blocks are provided on the upper end faces of the special-shaped grooves 8. The shape of the special-shaped blocks 10 is adapted to the shape of the special-shaped grooves 8. When the rotating rod 9 drives the special-shaped blocks 10 to rotate 180°, the special-shaped blocks 10 are clamped in the special-shaped grooves 8 through the elastic blocks to achieve the connection between adjacent cross plates.

[0030] Referring to FIG. 7 , the bracket 11 includes a first vertical rod 112 slidably connected to the first enclosure plate 21 and a second vertical rod 111 slidably connected to the second enclosure plate 31. The first vertical rod 112 and the second vertical rod 111 are both provided with insertion holes. The first enclosure plate 21 and the second enclosure plate 31 are provided with latches corresponding to the insertion holes to fix the length of the first vertical rod 112 and the second vertical rod 111. The ends of the first vertical rod 112 and the second vertical rod 111 are plugged into each other and are connected through the L-shaped block 1 at the ends of the vertical rods. 13 are assembled together to form a first concave groove 114, a first through hole 115 is provided at the bottom of the first concave groove 114 and a clamping groove is provided on the side wall of the first concave groove 114, a cross bar 116 is clamped at the first concave groove 114, a second through hole 117 is provided on the cross bar 116 corresponding to the first through hole 115, and a telescopic clamping block 118 is provided on the second through hole 117 corresponding to the clamping groove, when the anchor rod 12 enters the second through hole 117, the telescopic clamping block 118 is pushed to clamp with the clamping groove, and at this time, the anchor rods 12 are all on the same horizontal line.

[0031] Refer to Figure 3 As shown, in order to further enhance the stability and reinforcement of the slope, a plurality of second concave grooves are provided in the length direction of the first vertical rod 112 and the second vertical rod 111. By matching the second concave grooves with the first concave grooves 114, it is possible to build multiple cross rods 116 and anchor multiple anchor rods 12.

[0032] Refer to Figure 6As shown, the anchor rod 12 includes a hollow grouting anchor rod 12 body, a grouting channel 121 is arranged in the hollow grouting anchor rod 12 body, the anchor head at the front end of the hollow grouting anchor rod 12 body is conical, and a plurality of clamping parts 122 are arranged on the side of the anchor head, and the clamping parts 122 are distributed in a circle with the center line of the front end of the anchor head as the center, a plurality of grouting holes are arranged on the hollow grouting anchor rod 12 to connect the grouting channel 121, a grouting hole is arranged at the end of the hollow grouting anchor rod 12 to connect the grouting channel 121, a grouting plug is arranged at the end of the hollow grouting anchor rod 12, a groove is arranged on the grouting plug, and a connecting plate is arranged at the groove to strengthen the connectivity between the anchor rod 12 and the soil and to strengthen the stability of the slope through the anchor rod 12.

[0033] The working principle includes: configuring multiple first guardrails 2 and second guardrails 3 according to the length of the slope and transporting them to the foundation pit, laying a steel mesh 1 on the slope, and then installing the first first guardrail 2 on the top of the slope, fixing the first cross plate 22 on the top of the slope by vertical bolts and pressing the steel mesh 1, driving the push rod 5 by the driving member 6 to tilt the first guardrail plate 21, and the tilt angle is adapted to the slope angle, and then rotating by the moving member 7 to realize the movement of the first guardrail plate 21 along the slope surface to realize the fit between the first guardrail plate 21 and the upper end of the slope surface, and then realizing the installation of the adjacent subsequent first guardrail 2 according to the first connecting member 26 until the last guardrail is fixed by the vertical bolts. The second guard member 3 at the bottom of the slope uses the second active pushing member 35 to fit the second guard plate 31 with the lower end of the slope, and fix the second guard members 3 at the head and tail ends by vertical bolts to prevent deviation, then pull the second vertical rod 111 on the second guard plate 31 upward, pull it to a suitable position and fix it with a pin, then pull the first vertical rod 112 on the first guard plate 21 downward, pull it until it is spliced ​​together with the second vertical rod 111, and then install the cross bar 116 at the first concave groove 114 and install the anchor rod 12 at the through hole, strengthen the connectivity between the bracket 11 and the soil and thus strengthen the stability of the slope to avoid hazards such as landslides. After the foundation pit construction is completed, the first guard member 2 and the second guard member 3 can be dismantled and transported to the next construction project for continued use.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A foundation pit slope support device, comprising a steel mesh (1) arranged on a slope surface, wherein two ends of the steel mesh (1) extend to the top and bottom of the slope respectively, and characterized in that: A plurality of first enclosures (2) are provided at the upper end of a steel mesh (1) laid on the top of a slope, and adjacent first enclosures (2) are spliced ​​together, the first enclosures (2) include a first enclosure plate (21), and the first enclosure plate (21) is fitted with the upper end of the slope surface; a plurality of second enclosures (3) are provided at the upper end of a steel mesh (1) laid on the bottom of the slope, and adjacent second enclosures (3) are spliced ​​together, the second enclosure plate (31) includes a second enclosure plate (31), and the second enclosure plate (31) is fitted with the lower end of the slope surface; a bracket (11) is connected between the first enclosure plate (21) and the second enclosure plate (31), and the bracket (11) is provided with an anchor rod (12) that is obliquely anchored into the soil.

2. The foundation pit slope support device according to claim 1, characterized in that: The second enclosure member (3) comprises a second transverse plate (32) fitted with the bottom of the slope, a second slide groove (33) symmetrically arranged on the second transverse plate (32), a second slide rod (34) arranged on the second slide groove (33), one end of the second slide rod (34) is slidably connected to the second slide groove (33), and the other end is hinged to the second enclosure member (31), a second active pushing member (35) for adjusting the inclination angle of the second enclosure member (31) is arranged in the middle of the second transverse plate (32), and the side walls of the second transverse plate (32) are all provided with a second connecting member (36) for clamping with the adjacent second transverse plate (32).

3. The foundation pit slope support device according to claim 2, characterized in that: The first enclosure member (2) comprises a first transverse plate (22) fitted with the top of the slope, a first slide groove (23) symmetrically arranged on the first transverse plate (22), a first slide rod (24) arranged on the first slide groove (23), one end of the first slide rod (24) is slidably connected to the first slide groove (23), and the other end is slidably connected to the symmetrical slot of the first enclosure member (21), a first active pushing member (25) for adjusting the inclination angle of the first enclosure member (21) is arranged in the middle of the first transverse plate (22), and the side walls of the first transverse plate (22) are all provided with a first connecting member (26) for clamping with an adjacent first transverse plate (22).

4. The foundation pit slope supporting device according to claim 3 is characterized in that: The first active pushing member (25) and the second pushing member both include a column (4) with a hole arranged on a horizontal plate, a pushing rod (5) is inserted into the hole, one end of the pushing rod (5) is connected to the first enclosure plate (21) / the second enclosure plate (31), and the other end is provided with a driving member (6), and the driving member (6) is used to drive the pushing rod (5) to move along the direction of the hole.

5. The foundation pit slope supporting device according to claim 4, characterized in that: The pushing rod (5) of the first active pushing member (25) is slidably connected to the first slot (27) of the first enclosure plate (21); the pushing rod (5) of the first active pushing member (25) is rotatably connected to a moving member (7) for driving the first enclosure plate (21) to move along the inclination direction of the slope; the moving member (7) comprises a threaded rod (71); the threaded rod (71) is threadedly connected to the threaded hole on the first slot (27); the first enclosure plate (21) is moved along the direction of the first threaded rod (71) by rotating the threaded rod (71).

6. The foundation pit slope support device according to claim 5, characterized in that: The first connecting member (26) and the second connecting member (36) both comprise a plurality of special-shaped grooves (8) provided on one side of the first transverse plate (22) and the second transverse plate (32) and a rotating rod (9) provided on the other side, a special-shaped block (10) being connected to the special-shaped groove (8) on the rotating rod (9), and an elastic block being provided on the upper end surface of the special-shaped groove (8).

7. The foundation pit slope supporting device according to claim 6, characterized in that: The bracket (11) comprises a first vertical rod (112) slidably connected to the first enclosure plate (21) and a second vertical rod (111) slidably connected to the second enclosure plate (31); the ends of the first vertical rod (112) and the second vertical rod (111) are plugged into each other and are assembled together through L-shaped blocks (113) at the ends of the vertical rods to form a first concave groove (114); a first through hole (115) is provided at the bottom of the first concave groove (114) and a clamping groove is provided on the side wall of the first concave groove (114); a cross rod (116) is clamped at the first concave groove (114); a second through hole (117) is provided on the cross rod (116) corresponding to the first through hole (115); a telescopic clamping block (118) is provided on the second through hole (117) corresponding to the clamping groove; when the anchor rod (12) enters the second through hole (117), the telescopic clamping block (118) is pushed to be clamped with the clamping groove.

8. The foundation pit slope supporting device according to claim 7, characterized in that: The first vertical rod (112) and the second vertical rod (111) are provided with a plurality of second concave grooves along the length direction of the vertical rods.

9. The foundation pit slope supporting device according to claim 7 or 8, characterized in that: The anchor rod (12) comprises a hollow grouting anchor rod (12) body, a grouting channel (121) is provided in the hollow grouting anchor rod (12) body, the anchor head at the front end of the hollow grouting anchor rod (12) body is conical, a plurality of clamping parts (122) are provided on the side of the anchor head, and the clamping parts (122) are distributed in a circle with the center line of the front end of the anchor head as the center, a plurality of grouting holes are provided on the hollow grouting anchor rod (12) connected to the grouting channel (121), a grouting hole is provided at the end of the hollow grouting anchor rod (12) connected to the grouting channel (121), a grouting stopper is provided at the end of the hollow grouting anchor rod (12), a groove is provided on the grouting stopper, and a connecting plate is provided at the groove.

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