A geotechnical engineering slope reinforcement device and reinforcement method

Abstract

The present invention relates to the field of geotechnical engineering. On the one hand, a geotechnical engineering slope reinforcement device is disclosed, comprising: a sealing layer arranged on the surface of the slope; a steel mesh embedded in the sealing layer; and a pile rod whose lower end passes through the sealing layer and is embedded in the slope, the upper end of the pile rod is provided with a first positioning groove adapted to the steel mesh; a cap detachably connected to the upper end of the pile rod, the upper end of the pile rod and the cap are both embedded in the sealing layer, and the upper end of the pile rod cooperates with the cap to clamp the steel mesh. On the other hand, the present invention also discloses a reinforcement method based on the above-mentioned geotechnical engineering slope reinforcement device. The present invention utilizes a clamping connection method between the pile rod and the steel mesh, which can achieve quick connection without welding process, reduces environmental pollution problems, has low construction professional requirements, reduces construction difficulty, and can be operated by multiple people at the same time, reduces labor intensity, and thus improves construction efficiency.

Description

Technical Field

[0001] The invention relates to the field of geotechnical engineering, and in particular to a geotechnical engineering slope reinforcement device and reinforcement method. Background Art

[0002] With the continuous development of urban construction, geotechnical engineering plays an important role in the construction of infrastructure such as buildings, roads, bridges, etc. However, during the construction of geotechnical engineering, the stability of the slope has always been a difficult problem that troubles engineers.

[0003] Common measures for slope protection include spraying, mortar or cement plastering, spraying concrete, mortared stone, etc. The patent with publication number CN113216220A discloses a loose slope body slope spraying anchor net structure, including anchor rods partially driven into the slope body in a plum blossom shape, a spraying anchor net for reinforcing the slope surface, and a covering layer for covering the slope surface, the anchor rods, and the spraying anchor net. The covering layer includes a first covering layer directly covering the slope surface and a second covering layer covering the upper surface of the spraying anchor net. The spraying anchor net is located between the first covering layer and the second covering layer, and the top part of the anchor rod exposed on the slope surface is connected to the spraying anchor net. The anchor rod and the spraying anchor net work together to improve the structural strength and deformation stiffness of the loose rock and soil. The covering layer can prevent the weathering of the rock and soil body or the intrusion of surface water due to rainfall, thereby causing the slope body to slide, and the rock and soil body structural strength is weakened or the deformation stiffness is reduced. The geotechnical engineering slope has many construction sites and is in an inclined state, which has the characteristics of complex construction conditions. In this patent, the anchor rods and anchor nets are welded and fixed, and a large amount of welding work is bound to cause high construction professionalism, low construction efficiency and environmental pollution.

[0004] In view of this, for those skilled in the art, providing a method for quickly connecting an anchor rod and an anchoring net to reduce construction difficulty, improve work efficiency and reduce environmental pollution has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present invention aims to provide a geotechnical engineering slope reinforcement device and reinforcement method to overcome the above-mentioned shortcomings.

[0006] In order to achieve the above-mentioned object, the present invention provides a geotechnical engineering slope reinforcement device, comprising:

[0007] A sealing layer provided on the surface of the slope;

[0008] A steel mesh embedded in the sealing layer; and

[0009] A pile rod with a lower end penetrating the sealing layer and embedded in the slope, and a first positioning groove matched with the steel mesh is arranged on the upper end of the pile rod;

[0010] A cap is detachably connected to the upper end of the pile rod, the upper end of the pile rod and the cap are both embedded in the sealing layer, and the upper end of the pile rod cooperates with the cap to clamp the steel mesh.

[0011] Furthermore, the pile rod is a hollow casing, a flip hole is arranged on the side wall of the pile rod, a first sliding rod is fixedly connected in the flip hole, and further comprises:

[0012] A driving rod rotatably and slidably connected within the pile rod; and

[0013] A flip plate is installed in the flip hole, the upper end of the flip plate is hinged to the lower end of the driving rod, a strip hole is arranged in the middle of the flip plate, and the first sliding rod is slidably connected in the strip hole.

[0014] Furthermore, a positioning hole is arranged on the side wall of the pile rod, the positioning hole is communicated with the flipping hole, a second sliding rod is fixedly connected in the positioning hole, the second sliding rod and the first sliding rod are located on the same plane and are fixedly connected, the driving rod moves along the axial direction of the pile rod to realize the vertical arrangement of the flip plate and the axis of the pile rod, and at this time, the flip plate can be clamped in the positioning hole by rotating the driving rod.

[0015] Furthermore, it also includes:

[0016] A cross bar vertically arranged on the driving rod; and

[0017] An L-shaped slot is provided on the side wall of the pile rod, and the L-shaped slot includes a vertical section and a transverse section extending horizontally from the lower end of the vertical section. When the transverse rod slides downward in the vertical section, the lower end of the flip plate flips in a direction away from the pile rod until the flip plate is perpendicular to the axis of the pile rod. When the transverse rod moves from the lowermost end of the vertical section to the transverse section, the flip plate synchronously slides from the flip hole to the positioning hole.

[0018] Furthermore, it also includes:

[0019] A threaded sleeve rotatably connected to the pile rod through a bearing, wherein the upper end of the threaded sleeve is provided with a second positioning groove adapted to the steel mesh, and the steel mesh can be embedded in the second positioning groove and the first positioning groove at the same time;

[0020] The upper end of the driving rod is provided with an external thread, and the upper end of the driving rod is threadedly connected with the lower end of the threaded sleeve.

[0021] Furthermore, a positioning plate is fixed to the outer side wall of the pile rod, and the two positioning plates are respectively located above and below the positioning hole, and a rib plate is fixedly connected between the positioning plate and the outer side wall of the pile rod.

[0022] Furthermore, the number of the flip plates, flip holes, positioning holes, first sliding rods and second sliding rods is multiple, and the multiple flip plates, flip holes, positioning holes, first sliding rods and second sliding rods are arranged one by one, and the first sliding rod is a straight rod, and the second sliding rod is an arc rod.

[0023] Furthermore, a limiting ring plate is coaxially fixedly connected to the middle portion of the pile rod.

[0024] Compared with the prior art, the present invention has at least the following advantages:

[0025] When in use, first, spray concrete on the surface of the slope to form a primary concrete spray layer. After the primary concrete spray layer reaches a certain design strength, drill holes and install the lower end of the pile rod in the drill hole. Then, place the steel mesh in the first positioning groove and install the cap on the upper end of the pile rod. The upper end of the pile rod and the cap are used together to realize the clamping of the steel mesh. Finally, spray the concrete surface layer on the surface of the primary concrete spray layer. The primary concrete spray layer and the concrete surface layer function to form a sealing layer.

[0026] During the use of the present invention, a clamping connection method is adopted between the pile rod and the steel mesh, and a quick connection can be achieved without the need for welding process, thereby reducing environmental pollution problems, requiring low professional construction skills, reducing construction difficulty, and allowing multiple people to operate at the same time, greatly reducing labor intensity, thereby improving construction efficiency.

[0027] Another aspect of the present invention provides a reinforcement method based on the above-mentioned geotechnical engineering slope reinforcement device, wherein the sealing layer is a concrete initial spraying layer and a concrete surface layer;

[0028] The following steps are involved:

[0029] S1, slope finishing: trimming the slope so that the slope meets the design requirements and the surface of the slope is flat and smooth;

[0030] S2, initial spraying: spraying concrete on the surface of the slope to solidify the surface and form the initial spraying layer of concrete;

[0031] S3, drilling: after the initial spraying is completed and the strength of the initial sprayed concrete layer reaches 70%, drilling is performed and the lower end of the pile rod is installed in the drilled hole;

[0032] S4, mesh hanging: clamping the steel mesh in the first positioning groove, installing a cap on the upper end of the pile rod to achieve clamping of the steel mesh;

[0033] S5, secondary shotcrete: After the mesh is hung, the second shotcrete construction is carried out. The thickness of the shotcrete and the protective layer should meet the design requirements. After the shotcrete is finally set, it should be cured in time to form the concrete surface layer.

[0034] In another aspect, the present invention provides a reinforcement method based on the above-mentioned geotechnical engineering slope reinforcement device, wherein the sealing layer is a concrete initial spraying layer and a concrete surface layer;

[0035] S1, slope finishing: trimming the slope so that the slope meets the design requirements and the surface of the slope is flat and smooth;

[0036] S2, initial spraying: spraying concrete on the surface of the slope to solidify the surface and form the initial spraying layer of concrete;

[0037] S3, drilling: after the initial spraying is completed and the strength of the initial sprayed concrete layer reaches 70%, the drilling operation is carried out, the threaded sleeve is screwed so that the cross bar slides to the top of the vertical section, at this time, the flip plate is tilted downward toward the direction close to the axis of the pile rod, and the lower end of the pile rod is installed in the drilled hole;

[0038] S4, installing the pile rod: screw the threaded sleeve in the reverse direction, so that the crossbar slides from the uppermost part of the vertical section to the lowermost part of the vertical section and then to the end of the horizontal section away from the vertical section, and then the flip plate slides into the positioning hole;

[0039] S5, mesh hanging: clamping the steel mesh in the first positioning groove and the second positioning groove, installing a cap on the upper end of the pile rod to achieve clamping of the steel mesh;

[0040] S6, secondary shotcrete: After the mesh is hung, the second shotcrete construction is carried out. The thickness of the shotcrete and the protective layer should meet the design requirements. After the shotcrete has finally set, it should be cured in time to form a concrete surface layer.

[0041] The reinforcement method described in the present invention has the same advantages as the above-mentioned geotechnical engineering slope reinforcement device over the prior art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1 This is a rendering of the use status of the geotechnical engineering slope reinforcement device of the present invention;

[0044] Figure 2 It is a schematic diagram of the three-dimensional structure of the geotechnical engineering slope reinforcement device (without sealing layer) of the present invention;

[0045] Figure 3 It is a schematic diagram of the structure of the pile rod and the cap assembly of the present invention;

[0046] Figure 4 A cross-sectional view of the pile rod and the cap assembled according to the present invention;

[0047] Figure 5 It is a structural schematic diagram of the pile rod of the present invention in another state.

[0048] Figure numerals: 1. slope; 2. sealing layer; 3. steel mesh; 4. pile rod; 5. first positioning groove; 6. cap; 7. flip hole; 8. first sliding rod; 9. driving rod; 10. flip plate; 11. strip hole; 12. positioning hole; 13. second sliding rod; 14. cross bar; 15. L-shaped slot; 16. threaded sleeve; 17. second positioning groove; 18. positioning plate; 19. rib plate; 20. limiting ring plate; 21. initial sprayed concrete layer; 22. concrete surface layer. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] Reference Figure 1-3 On one hand, the present invention provides a geotechnical engineering slope reinforcement device, which is applied to the reinforcement of geotechnical engineering slopes, and the specific structure includes a sealing layer 2, a steel mesh 3, a pile rod 4 and a cap 6. Among them: the sealing layer 2 is arranged on the surface of the slope 1, and the sealing layer 2 adopts a concrete structure. Preferably, the sealing layer 2 includes a concrete initial spraying layer 21 and a concrete surface layer 22, and the concrete initial spraying layer 21 is located between the concrete surface layer 22 and the surface of the slope 1; the steel mesh 3 is embedded in the sealing layer 2, the lower end of the pile rod 4 passes through the sealing layer 2 and is fixedly embedded in the slope 1, and the upper end of the pile rod 4 is provided with a first positioning groove 5 adapted to the steel mesh 3; the cap 6 is detachably connected to the upper end of the pile rod 4, preferably threaded or clamped, the upper end of the pile rod 4 and the cap 6 are both embedded in the sealing layer 2, the steel mesh 3 is placed in the first positioning groove 5, and the cap 6 is installed on the upper end of the pile rod 4, at this time, the upper end of the pile rod 4 cooperates with the cap 6 to clamp the steel mesh.

[0052] When in use, first, spray concrete on the surface of the slope 1 to form a concrete primary spray layer 21; secondly, after the concrete primary spray layer 21 reaches a certain design strength, perform drilling operations, and install the lower end of the pile rod 4 in the drilled hole, then place the steel mesh 3 in the first positioning groove 5, and install the cap 6 on the upper end of the pile rod 4, and the upper end of the pile rod 4 cooperates with the cap 6 to achieve the clamping of the steel mesh 3; finally, spray the concrete surface layer 22 on the surface of the concrete primary spray layer 21, and complete the maintenance of the concrete surface layer 22. During use, the pile rod 4 and the steel mesh 3 are connected by a clamping connection method, which can achieve quick connection without welding process, reduce environmental pollution problems, have low construction professional requirements, reduce construction difficulty, and can be operated by multiple people at the same time, greatly reducing labor intensity, thereby improving construction efficiency.

[0053] Reference Figure 3-4 As shown, the pile rod 4 is a hollow casing, and a conical tip is provided at the lower end of the pile rod 4, so that the pile rod 4 can be quickly and conveniently inserted into the drilled hole. A flip hole 7 is arranged on the side wall of the pile rod 4, and a first sliding rod 8 is fixedly connected in the flip hole 7.

[0054] In addition, the present invention also includes a driving rod 9 and a flip plate 10. The driving rod 9 is rotatably and slidably connected in the pile rod 4, the axis of the driving rod 9 coincides with the axis of the pile rod 4, the driving rod 9 can realize self-rotation, and can slide along the axis direction of the pile rod 4; the flip plate 10 is installed in the flip hole 7, the upper end of the flip plate 10 is hinged to the lower end of the driving rod 9, a strip hole 11 is arranged in the middle of the flip plate 10, and the first sliding rod 8 is slidably connected in the strip hole 11. When the driving rod 9 moves along the axis direction of the pile rod 4, the lower end of the flip plate 10 can be moved in the direction close to or away from the outer wall of the pile rod 4.

[0055] The driving rod 9 moves along the axis of the pile rod 4 toward the direction away from the conical tip, so that the lower end of the flip plate 10 is close to the pile rod 4. At this time, the area of ​​the flip plate 10 protruding from the pile rod 4 is the smallest, which is convenient for the lower end of the pile rod 4 to be installed in the drilled hole; when the lower end of the pile rod 4 is installed in place in the drilled hole, by controlling the driving rod 9 to move along the axis of the pile rod 4 toward the conical tip, the flip plate 10 can be gradually flipped out of the flip hole 7, and the lower end of the flip plate 10 moves away from the outer wall of the pile rod 4. At the same time, the lower end of the flip plate 10 can be inserted into the soil to achieve the clamping connection between the pile rod 4 and the soil layer, thereby increasing the stability of the connection between the pile rod 4 and the soil layer.

[0056] Combined with reference Figure 4, a positioning hole 12 is also arranged on the side wall of the pile rod 4, the positioning hole 12 is connected to the flip hole 7, and a second sliding rod 13 is fixedly connected in the positioning hole 12, and the second sliding rod 13 and the first sliding rod 8 are located on the same plane and are fixedly connected in sequence. The driving rod 9 moves along the axis direction of the pile rod 4 to realize the flipping of the lower end of the flip plate 10 in the direction away from the outer wall of the pile rod 4, until the flip plate 10 is perpendicular to the axis of the pile rod 4, and the driving rod 9 stops moving along the axis direction of the pile rod 4. At this time, the flip plate 10 can be clamped in the positioning hole 12 by the self-rotation of the driving rod 9. The height of the positioning hole 12 along the axis direction of the pile rod 4 is the same as the thickness of the flip plate 10. At this time, the lower end of the driving rod 9 and the positioning hole 12 simultaneously exert a force on the flip plate 10, jointly resisting the external force exerted by the soil on the flip plate 10, thereby improving the structural stability of the flip plate 10.

[0057] It should be noted that the wall thickness of the pile rod 4 in the present invention is preferably 0.5 cm-1 cm, and the upper and lower surfaces of the positioning hole 12 can achieve the clamping effect on the flip plate 10, and can play a synergistic role with the driving rod 9. When there is vibration around the slope, due to the clamping effect of the positioning hole on the flip plate 10, the possibility of the driving rod 9 moving along the axis direction of the pile rod 4 can be reduced, thereby avoiding the possibility of reducing the action area between the flip plate 10 and the surrounding soil.

[0058] In a specific embodiment of the present invention, the first sliding rod 8 is a straight rod, thereby enabling the flip plate 10 to flip around the first sliding rod 8, and the second sliding rod 13 is an arc-shaped rod. The rotating driving rod 9 can embed the second sliding rod 13 in the strip hole 11. The second sliding rod 13 is set as an arc-shaped rod. The arc-shaped rod can determine a unique plane. The arc-shaped rod is embedded in the strip hole 11, which can prevent the flip plate 10 from flipping, thereby further improving the structural stability of the flip plate 10.

[0059] In addition, a positioning plate 18 is fixed to the outer wall of the pile rod 4 of the present invention, and the two positioning plates 18 are respectively located above and below the positioning hole 12. A rib plate 19 is fixedly connected between the positioning plate 18 and the outer wall of the pile rod 4. When the flip plate 10 is embedded in the positioning hole 12, the projection of the strip hole 11 along the axial direction of the pile rod 4 is located within the projection of the positioning plate 18 and the positioning hole 12. Compared with other positions of the flip plate 10, the thickness of the flip plate 10 at the position where the strip hole 11 is set is lower. The strip hole 11 of the flip plate 10 slides between the two positioning plates 18 and the positioning hole 12, which can enhance the ability of the flip plate 10 at the strip hole 11 to resist external forces, thereby reducing the situation where the use effect of the flip plate 10 is reduced due to the breakage of the flip plate 10 located at the positioning hole 12.

[0060] Preferably, the present invention further comprises a cross bar 14 and an L-shaped slot 15. The cross bar 14 vertically penetrates the driving rod 9, and the L-shaped slot 15 is arranged on the side wall of the pile rod 4. The L-shaped slot 15 comprises a vertical section and a horizontal section, and the lower end of the vertical section horizontally extends to form the horizontal section. When the cross bar 14 slides downward in the vertical section, the lower end of the flip plate 10 flips in a direction away from the pile rod 4 until the flip plate 10 is arranged perpendicular to the axis of the pile rod 4. When the cross bar 14 moves from the lower end of the vertical section to the horizontal section, the flip plate 10 synchronously slides from the flip hole 7 to the positioning hole 12.

[0061] The crossbar 14 and the L-shaped slot 15 are provided, and the vertical section can limit the displacement of the driving rod 9 along the axis direction of the pile rod 4, while the transverse section can limit the rotation angle of the driving rod 9.

[0062] In order to realize the driving process of the driving rod 9, the present invention is also provided with a threaded sleeve 16, which is rotatably connected to the pile rod 4 through a bearing, and the upper end of the threaded sleeve 16 is provided with a second positioning groove 17 adapted to the steel mesh 3, and the steel mesh 3 can be embedded in the second positioning groove 17 and the first positioning groove 5 at the same time; the upper end of the driving rod 9 is provided with an external thread, and the upper end of the driving rod 9 is detachably connected to the lower end of the threaded sleeve 16.

[0063] The cross bar 14 is pushed by external force to be located in the vertical section of the L-shaped slot 15, and the strip hole 11 slides into the first sliding rod 8. The driving rod 9 is driven upward by rotating the threaded sleeve 16 until the cross bar 14 slides to the upper end of the vertical section. At this time, the flip plate 10 is tilted downward toward the axis of the pile rod 4. At this time, the volume of the flip plate 10 exposed on the outer wall of the pile rod 4 is the smallest, and the pile rod 4 is in the initial state. When in use, when the pile rod 4 is installed in the drilled hole, the cross bar 14 can slide along the vertical section of the L-shaped slot hole by rotating the threaded sleeve 16 in the opposite direction until it slides to the lower end of the vertical section. At the same time, the lower end of the flip plate 10 flips in the direction away from the outer wall of the pile rod 4 until the flip plate 10 is perpendicular to the axis direction of the pile rod 4. The threaded sleeve 16 is rotated in the opposite direction again. At this time, the cross bar 14 slides along the transverse section of the L-shaped slot hole 15 until it slides to the end of the transverse section away from the vertical section. At the same time, the flip plate 10 gradually slides into the positioning hole 12 until the strip hole 11 is completely embedded in the second sliding rod 13. At this time, the steel mesh 3 can be embedded in the second positioning groove 17 and the first positioning groove 5 at the same time, which can prevent the threaded sleeve 16 from rotating and realize the circumferential limit of the threaded sleeve 16. In addition, the cross bar 14 is located in the transverse section, which can limit the driving rod 9 along the axis direction of the pile rod 4, thereby making the upper end of the flip plate 10 more stable.

[0064] When the pile rod 4 is installed in the drilling process, in order to limit the position of the pile rod 4, the middle part of the pile rod 4 is coaxially fixedly connected with a limiting ring plate 20. When in use, the limiting ring plate 20 abuts against the surface of the concrete primary spraying layer 21.

[0065] It should be understood that the number of flip plates 10, flip holes 7, positioning holes 12, first sliding rods 8 and second sliding rods 13 in the present invention is multiple, and multiple flip plates 10, flip holes 7, positioning holes 12, first sliding rods 8 and second sliding rods 13 are arranged in a one-to-one correspondence.

[0066] In addition, another aspect of the present invention provides a reinforcement method based on the above-mentioned geotechnical engineering slope reinforcement device, comprising the following steps:

[0067] S1, slope finishing: trimming the slope 1 so that the slope of the slope 1 meets the design requirements and the surface of the slope 1 is flat and smooth;

[0068] S2, initial spraying: spraying concrete on the surface of the slope 1 to consolidate the surface and form an initial sprayed concrete layer 21;

[0069] S3, drilling: after the initial spraying is completed and the strength of the initial sprayed concrete layer 21 reaches 70%, the drilling operation is carried out and the lower end of the pile rod 4 is installed in the drilled hole;

[0070] S4, mesh hanging: clamp the steel mesh 3 into the first positioning groove 5, and install the cap 6 on the upper end of the pile rod 4 to achieve clamping of the steel mesh 3;

[0071] S5, secondary shotcrete: After the mesh is hung, the second shotcrete construction is carried out. The thickness of the shotcrete and the protective layer should meet the design requirements. After the shotcrete is finally set, it should be cured in time to form a concrete surface layer 22.

[0072] In addition, another aspect of the present invention provides a reinforcement method based on the above-mentioned geotechnical engineering slope reinforcement device, comprising the following steps:

[0073] S1, slope finishing: trimming the slope 1 so that the slope of the slope 1 meets the design requirements and the surface of the slope 1 is flat and smooth;

[0074] S2, initial spraying: spraying concrete on the surface of the slope 1 to consolidate the surface and form an initial sprayed concrete layer 21;

[0075] S3, drilling: after the initial spraying is completed and the strength of the initial sprayed concrete layer 21 reaches 70%, the drilling operation is carried out, and the threaded sleeve 16 is screwed so that the cross bar 14 slides to the top of the vertical section. At this time, the flip plate 10 is tilted downward toward the axis direction of the pile rod 4, and the lower end of the pile rod 4 is installed in the drilled hole;

[0076] S4, installing the pile rod: reversely screw the threaded sleeve 16, so that the cross bar 14 slides from the top of the vertical section to the bottom of the vertical section and then to the end of the horizontal section away from the vertical section. At this time, the flip plate 10 slides into the positioning hole 12;

[0077] S5, mesh hanging: clamp the steel mesh 3 into the first positioning groove 5 and the second positioning groove 17, and install the cap 6 on the upper end of the pile rod 4 to achieve clamping of the steel mesh 3;

[0078] S6, secondary shotcrete: After the mesh is hung, the second shotcrete construction is carried out. The thickness of the shotcrete and the protective layer should meet the design requirements. After the shotcrete is finally set, it should be cured in time to form a concrete surface layer 22.

[0079] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0080] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A geotechnical engineering slope reinforcement device, characterized in that: include: A sealing layer (2) provided on the surface of the slope (1); A steel mesh (3) embedded in the sealing layer (2); A pile rod (4) whose lower end penetrates the sealing layer (2) and is embedded in the slope (1), and a first positioning groove (5) adapted to the steel mesh (3) is arranged at the upper end of the pile rod (4); a cap (6) detachably connected to the upper end of the pile rod (4), the upper end of the pile rod (4) and the cap (6) being both embedded in the sealing layer (2), and the upper end of the pile rod (4) and the cap (6) being matched to clamp the steel mesh (3); The pile rod (4) is a hollow casing, a flip hole (7) is arranged on the side wall of the pile rod (4), a first sliding rod (8) is fixedly connected in the flip hole (7), and the geotechnical engineering slope reinforcement device further comprises: a driving rod (9) rotatably and slidably connected inside the pile rod (4); and a flip plate (10) installed in the flip hole (7), the upper end of the flip plate (10) being hinged to the lower end of the driving rod (9), a strip hole (11) being arranged in the middle of the flip plate (10), and the first sliding rod (8) being slidably connected in the strip hole (11); A positioning hole (12) is also arranged on the side wall of the pile rod (4), the positioning hole (12) is communicated with the flip hole (7), a second sliding rod (13) is fixedly connected in the positioning hole (12), the second sliding rod (13) and the first sliding rod (8) are located on the same plane and are fixedly connected, the driving rod (9) moves along the axis of the pile rod (4) to realize the vertical arrangement of the flip plate (10) and the axis of the pile rod (4), and at this time, the flip plate (10) can be clamped in the positioning hole (12) by making the driving rod (9) rotate. The geotechnical engineering slope reinforcement device also includes: A cross bar (14) vertically arranged on the driving rod (9); and an L-shaped slot (15) provided on the side wall of the pile rod (4), the L-shaped slot (15) comprising a vertical section and a transverse section extending horizontally from the lower end of the vertical section, when the transverse bar (14) slides downward in the vertical section, the lower end of the flip plate (10) flips in a direction away from the pile rod (4) until the flip plate (10) is arranged perpendicular to the axis of the pile rod (4), and when the transverse bar (14) moves from the lowermost end of the vertical section to the transverse section, the flip plate (10) synchronously slides from the flip hole (7) to the positioning hole (12); The geotechnical engineering slope reinforcement device also includes: A threaded sleeve (16) rotatably connected to the pile rod (4) via a bearing, wherein the upper end of the threaded sleeve (16) is provided with a second positioning groove (17) adapted to the steel mesh (3), and the steel mesh (3) can be embedded in the second positioning groove (17) and the first positioning groove (5) at the same time; The upper end of the driving rod (9) is provided with an external thread, and the upper end of the driving rod (9) is threadedly connected to the lower end of the threaded sleeve (16).

2. The geotechnical engineering slope reinforcement device according to claim 1, characterized in that: A positioning plate (18) is fixed to the outer side wall of the pile rod (4), the two positioning plates (18) are respectively located above and below the positioning hole (12), and a rib plate (19) is fixedly connected between the positioning plate (18) and the outer side wall of the pile rod (4).

3. The geotechnical engineering slope reinforcement device according to claim 1, characterized in that: The flip plate (10), the flip hole (7), the positioning hole (12), the first sliding rod (8) and the second sliding rod (13) are all multiple in number, and the multiple flip plates (10), the flip holes (7), the positioning holes (12), the first sliding rod (8) and the second sliding rod (13) are arranged in a one-to-one correspondence, and the first sliding rod (8) is a straight rod, and the second sliding rod (13) is an arc rod.

4. The geotechnical engineering slope reinforcement device according to claim 3, characterized in that: The middle part of the pile rod (4) is coaxially fixedly connected to a limiting ring plate (20).

5. A reinforcement method for a geotechnical engineering slope reinforcement device according to any one of claims 1 to 4, characterized in that: The sealing layer (2) is composed of a concrete primary spraying layer (21) and a concrete surface layer (22); The reinforcement method The following steps are involved: S1, slope finishing: trimming the slope (1) so that the slope of the slope (1) meets the design requirements and the surface of the slope (1) is flat and smooth; S2, initial spraying: spraying concrete on the surface of the slope (1) to solidify the surface and form the initial sprayed concrete layer (21); S3, drilling: after the initial spraying is completed and the strength of the initial sprayed concrete layer (21) reaches 70%, the drilling operation is carried out, the threaded sleeve (16) is screwed so that the cross bar (14) slides to the top of the vertical section, at which time the flip plate (10) is tilted downward toward the axis of the pile rod (4), and the lower end of the pile rod (4) is installed in the drilled hole; S4, installing the pile rod: screwing the threaded sleeve (16) in the reverse direction, so that the cross bar (14) slides from the uppermost end of the vertical section to the lowermost end of the vertical section and then to the end of the transverse section away from the vertical section, at which time the flip plate (10) slides into the positioning hole (12); S5, mesh hanging: clamping the steel mesh (3) into the first positioning groove (5) and the second positioning groove (17), installing a cap (6) on the upper end of the pile rod (4) to achieve clamping of the steel mesh (3); S6, secondary shotcrete: After the mesh is hung, the second shotcrete construction is carried out. The thickness of the shotcrete and the protective layer should meet the design requirements. After the shotcrete is finally set, it should be cured in time to form a concrete surface layer (22).

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