A deformation adjustable anchor pile anti-slip structure and anti-slip method thereof

Abstract

The present invention relates to a deformable and adjustable anchor pile anti-slip structure and an anti-slip method thereof. The anti-slip structure comprises a hemispherical hinge anchor plate (3), a hemispherical hinge (4), and a fastening nut (10); an anchor cable anchor plate position (11) is arranged at one end of an anchor cable hole (2) at the end of a pile body; a hemispherical hinge anchor plate (3) is fixedly arranged at the position of the anchor cable anchor plate position (11), a hemispherical hinge (4) is arranged outside the hemispherical hinge anchor plate (3), and a fastening nut (10) is arranged outside the hemispherical hinge (4); and the like. The spherical hinge and the support of the spherical hinge of the present invention can be prefabricated, or can be manufactured after anti-slip piles are constructed first, and different sizes can be customized according to different working conditions to meet the requirements of on-site working conditions.

Description

Technical Field

[0001] The invention relates to a slope anti-slip structure in geotechnical engineering, and in particular to a deformable adjustable anchor pile anti-slip structure and an anti-slip method thereof. Background Art

[0002] Common anti-slip structures for slopes in geotechnical engineering cannot meet the requirements of the project simply by relying on the anti-slip force of the pile body due to excessive thrust of the slope or the existence of unstable forces. At this time, it is generally considered to add anchor rods (cables) at the top of the pile to enhance the stability of the anti-slip pile. When traditional slope support uses anchor pile support, the anchor rods (cables) are generally prestressed. When a large number of piles work together, due to the limited deformation of the anchor cable, some piles have reached the bearing capacity limit and are destroyed, while most piles are still in the elastic stage and cannot play their maximum effect. When the pile body is connected by a plate or a beam, the displacement of the pile body at the dangerous section will be greater than that of other piles. At this time, the pile body should be allowed to deform to tighten the anchor rod (cable), so that the synergistic effect of each pile and the anchor rod (cable) is more obvious. The settlement or displacement that may occur under the synergistic effect of each pile will cause the anchor rod to loosen and then fail. Therefore, a new connection method between the anchor rod and the pile end is needed, which can allow the displacement of the pile body within a certain range but will not make the tension of the anchor rod (cable) fail. Summary of the invention

[0003] In view of the fact that the anti-slip structure in geotechnical engineering is prone to cause failure of the anchor rod (cable) when the pile body is displaced, in order to allow the anchor rod (cable) to allow a small displacement of the pile body, the present invention provides a solution, using a hemispherical hinge anchor plate to connect the pile body and the anchor rod (cable), the hemispherical hinge is rotatable to provide a certain allowable rotation angle for the rotation of the pile body, the hemispherical hinge is connected to a strong spring, and provides an allowable deformation for the axial displacement of the pile body. The hemispherical hinge anchor plate is prefabricated and can also be customized in size according to different working conditions, so as to adapt to various site changes.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions.

[0005] A deformable and adjustable anchor pile anti-slip structure, the anti-slip structure comprises an anchor cable and an anchor cable hole; the anchor cable hole is arranged at the end of the pile body, and the anchor cable is inserted into the anchor cable hole; the anti-slip structure of the present invention also comprises a hemispherical hinge anchor plate, a hemispherical hinge, and a fastening nut; an anchor cable anchor plate position is arranged at one end of the anchor cable hole at the end of the pile body; a hemispherical hinge anchor plate is fixedly arranged at the anchor cable anchor plate position, a hemispherical hinge is arranged on the outside of the hemispherical hinge anchor plate, and a fastening nut is arranged on the outside of the hemispherical hinge; a hole is arranged in the center of the hemispherical hinge; the anchor cable passes through the hemispherical hinge anchor plate, the hole on the hemispherical hinge, and the fastening nut in sequence from the inside to the outside and then is connected.

[0006] Furthermore, the anti-slip structure of the present invention also includes a strong spring, which is passed through the anchor cable; the diameter of the strong spring is larger than the diameter of the anchor cable hole; the strong spring is arranged on the inner side of the hemispherical hinge anchor plate, that is, from the inside to the outside, the connection sequence is strong spring, hemispherical hinge anchor plate, hemispherical hinge, fastening nut; the hole diameter is slightly larger than the diameter of the anchor cable.

[0007] Furthermore, the anti-slip structure of the present invention further comprises a lubricant layer; the lubricant layer is arranged between the hemispherical hinge anchor plate and the hemispherical hinge; the lubricant layer is filled with lubricant.

[0008] Furthermore, the anti-slip structure of the present invention further includes a gasket A, which is respectively arranged on both sides of the powerful spring; the inner diameter of the gasket A is larger than the diameter of the anchor cable and smaller than the diameter of the powerful spring. Gaskets A need to be arranged on both sides of the powerful spring to reduce pressure and protect parts, and the effective elastic force of the powerful spring meets the tension design value requirements of the anchor cable and has a certain surplus.

[0009] Furthermore, the anti-slip structure of the present invention further comprises a gasket B, which is arranged between the fastening nut and the hemispherical hinge; the inner diameter of the gasket B is larger than the diameter of the anchor cable and smaller than the outer diameter of the fastening nut, so as to reduce pressure, prevent loosening, and protect the hemispherical hinge and the nut.

[0010] Furthermore, the hemispherical hinge anchor plate described in the anti-slip structure of the present invention has a hole for the anchor cable to pass through and has the same outer diameter as the hole for placing the strong spring.

[0011] Furthermore, the anti-slip structure of the present invention further comprises a dust cover, and the dust cover is arranged outside the hemispherical hinge.

[0012] The above-mentioned anti-slip structure realizes the anti-slip method, the method comprising the following steps:

[0013] S1. When pouring the pile body, when pouring to the pile end, the anchor cable hole is formed according to the pile body and then constructed by drilling technology. A hemispherical hinge anchor plate is set at the position of the anchor cable anchor plate in the pile body and embedded in the load-bearing part of the pile end. The angle of the anchor cable hole in the pile body is prefabricated according to the designed anchor rod angle, and the hole diameter of the anchor cable hole is determined by the diameter of the anchor cable, the width of the pile body [referring to the width of the pile body in the same direction as the reserved anchor cable hole] and the allowable deformation angle of the pile end;

[0014] S2. The anchor cable body passes through a hole in the center of the hemispherical hinge at the exposed part of the pile body. The hole is perpendicular to the plane of the hemispherical hinge and has a diameter slightly larger than that of the anchor rod. The hole is used to assist grouting. One side of the plane of the hemispherical hinge is connected to the anchor rod with bolts after prestressing.

[0015] S3. A strong spring is arranged between the opening of the hemispherical hinge anchor plate and the anchor cable hole to adjust the displacement of the pile body. Gaskets need to be added on both sides of the strong spring;

[0016] S4. Add a lubricant layer between the hemispherical hinge and the hemispherical hinge anchor plate to make the connection between the hemispherical hinge and the hemispherical hinge anchor plate smoother, and add a dust cover to prevent external soil from invading the hemispherical hinge anchor plate and affecting its rotation;

[0017] S5. Pass the anchor cable through the hole reserved in the pile body and drive it into the rock and soil at a predetermined design angle. Connect it to the hemispherical hinge at the end, tighten the nut and make the tension reach the predetermined design value.

[0018] Furthermore, in step S1 of the present invention, a PVC pipe is inserted into the anchor hole, and the anchor design angle is prefabricated using the PVC pipe.

[0019] Furthermore, the anchor cable described in the present invention is a bonded anchor cable.

[0020] The beneficial effects of the present invention are as follows: 1) The present invention can solve the problem of tensile failure of the anti-slip structure in the landslide body due to the anchor cable (rod) exceeding the limit load, and allow the anchor cable (rod) to produce a certain deformation, thereby transferring the load to the anti-slip pile, so that the pile body and the anchor cable (rod) coordinate to prevent slip. 2) The present invention utilizes the rotation characteristics of the spherical hinge, which can automatically adjust the direction of the anchor rod according to the small displacement of the pile body, so that the anchor rod can still play the maximum effect after the pile body has a certain deformation. 3) The strong spring arranged at the rear of the spherical hinge of the present invention reserves a certain allowable deformation value for the displacement of the pile body when it is compressed. 4) The spherical hinge and the support of the spherical hinge of the present invention can be prefabricated, or the anti-slip pile can be constructed first and then manufactured. Different sizes can be customized according to different working conditions to meet the requirements of on-site working conditions.

[0021] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the spherical joint arrangement structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the rotatable angle structure of the anchor rod of the present invention.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the three-dimensional model of the present invention.

[0025] The numbers in the figure are: anchor cable (1), anchor cable hole (2), hemispherical hinge anchor plate (3), hemispherical hinge (4), hole (5), strong spring (6), gasket A (7.1), gasket B (7.2), lubricant layer (8), dust cover (9), fastening nut (10), anchor cable anchor plate position (11). DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the present invention. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0027] See Figure 1 , Figure 2 , Figure 3 shown.

[0028] A deformable and adjustable anchor pile anti-slip structure, the anti-slip structure comprises an anchor cable 1 and an anchor cable hole 2; the anchor cable hole 2 is arranged at the end of the pile body, and the anchor cable 1 is inserted into the anchor cable hole 2; the anti-slip structure of the present invention also comprises a hemispherical hinge anchor plate 3, a hemispherical hinge 4, and a fastening nut 10; an anchor cable anchor plate position 11 is arranged at one end of the anchor cable hole 2 at the end of the pile body; the hemispherical hinge anchor plate 3 is fixedly arranged at the anchor cable anchor plate position 11, the hemispherical hinge 4 is arranged outside the hemispherical hinge anchor plate 3, and the fastening nut 10 is arranged outside the hemispherical hinge 4; a hole 5 is arranged in the center of the hemispherical hinge 4; the anchor cable 1 passes through the hemispherical hinge anchor plate 3, the hole 5 on the hemispherical hinge 4, and the fastening nut 10 in sequence from the inside to the outside and then is connected.

[0029] Furthermore, the anti-slip structure of the present invention also includes a strong spring 6, which is passed through the anchor cable 1; the diameter of the strong spring 6 is larger than the diameter of the anchor cable hole 2; the strong spring 6 is arranged on the inner side of the hemispherical hinge anchor plate 3, that is, from the inside to the outside, the connection sequence is the strong spring 6, the hemispherical hinge anchor plate 3, the hemispherical hinge 4, and the fastening nut 10; the diameter of the hole 5 is slightly larger than the diameter of the anchor cable 1.

[0030] Furthermore, the anti-slip structure of the present invention further comprises a lubricant layer 8 ; the lubricant layer 8 is arranged between the hemispherical hinge anchor plate 3 and the hemispherical hinge 4 ; the lubricant layer 8 is filled with lubricant.

[0031] Furthermore, the anti-slip structure of the present invention further includes gaskets A7.1, which are respectively arranged on both sides of the powerful spring 6; the inner diameter of the gasket A7.1 is larger than the diameter of the anchor cable 1 and smaller than the diameter of the powerful spring 6. Gaskets A7.1 need to be arranged on both sides of the powerful spring 6 to reduce pressure and protect parts, and the effective elastic force of the powerful spring 6 meets the tension design value requirements of the anchor cable 1 and has a certain surplus.

[0032] Furthermore, the anti-slip structure of the present invention further comprises a gasket B7.2, which is arranged between the fastening nut 10 and the hemispherical hinge 4; the inner diameter of the gasket B7.2 is larger than the diameter of the anchor cable 1 and smaller than the outer diameter of the fastening nut 10, so as to reduce pressure, prevent loosening, and protect the hemispherical hinge 4 and the nut.

[0033] Furthermore, the hemispherical hinge anchor plate 3 in the anti-slip structure of the present invention has a hole for the anchor cable 1 to pass through and has the same outer diameter as the hole for placing the strong spring 6.

[0034] Furthermore, the anti-slip structure of the present invention further comprises a dust cover 9 , and the dust cover 9 is arranged outside the hemispherical hinge 4 .

[0035] The above-mentioned anti-slip structure realizes the anti-slip method, the method comprising the following steps:

[0036] S1. When pouring the pile body, when pouring to the pile end, the anchor cable hole 2 is formed according to the pile body and then constructed by drilling technology. A hemispherical hinge anchor plate 3 is arranged at the anchor cable anchor plate position 11 of the pile body, and embedded in the pile end bearing part. The angle of the anchor cable hole 2 in the pile body is prefabricated according to the designed anchor rod angle, and the hole diameter of the anchor cable hole 2 is determined by the diameter of the anchor cable, the width of the pile body [referring to the width of the pile body in the same direction as the reserved anchor cable hole 2] and the allowable pile end deformation angle;

[0037] S2, the anchor cable body passes through the hole 5 in the center of the hemispherical hinge 4 at the exposed part of the pile body, the hole 5 is perpendicular to the plane of the hemispherical hinge 4 and the diameter is slightly larger than the diameter of the anchor rod 1, and the hole 5 is used to assist grouting; one side of the plane of the hemispherical hinge 4 is connected to the anchor rod 1 with bolts after prestressing;

[0038] S3, a strong spring 6 is arranged between the opening of the hemispherical hinge anchor plate 3 and the anchor cable hole 2 to adjust the displacement of the pile body, and gaskets 7 need to be added on both sides of the strong spring 6;

[0039] S4, adding a lubricant layer 8 between the hemispherical hinge 4 and the hemispherical hinge anchor plate 3 to make the connection between the hemispherical hinge 4 and the hemispherical hinge anchor plate 3 smoother, and adding a dust cover 9 to prevent external soil from invading the hemispherical hinge anchor plate 3 and affecting its rotation;

[0040] S5. Pass the anchor cable 1 through the hole 5 reserved in the pile body and drive it into the rock and soil body according to the predetermined design angle, connect it with the hemispherical hinge 4 at the end, tighten the nut 10 and make the tension reach the predetermined design value.

[0041] Furthermore, in step S1 of the present invention, a PVC pipe is inserted into the anchor hole 2, and the anchor 1 is prefabricated with the PVC pipe at a design angle.

[0042] Furthermore, the anchor cable 1 of the present invention is a bonded anchor cable.

[0043] The above is only a specific embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that the above embodiment does not limit the present invention in any way. For those skilled in the art, any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A deformable and adjustable anchor pile anti-slip structure, the anti-slip structure comprising an anchor cable (1) and an anchor cable hole (2); the anchor cable hole (2) is arranged at the end of the pile body, and the anchor cable (1) is inserted into the anchor cable hole (2); the characteristics are: The anti-slip structure further comprises a hemispherical hinge anchor plate (3), a hemispherical hinge (4), and a fastening nut (10); an anchor cable anchor plate position (11) is arranged at one end of the anchor cable hole (2) at the end of the pile body; the hemispherical hinge anchor plate (3) is fixedly arranged at the anchor cable anchor plate position (11), a hemispherical hinge (4) is arranged outside the hemispherical hinge anchor plate (3), and a fastening nut (10) is arranged outside the hemispherical hinge (4); a hole (5) is arranged at the center of the hemispherical hinge (4); the anchor cable (1) passes through the hemispherical hinge anchor plate (3), the hole (5) on the hemispherical hinge (4), and the fastening nut (10) in sequence from the inside to the outside, and then is connected; The anti-slip structure further comprises a strong spring (6), which is inserted into the anchor cable (1); the diameter of the strong spring (6) is larger than the diameter of the anchor cable hole (2); the strong spring (6) is arranged inside the hemispherical hinge anchor plate (3), that is, from inside to outside, the connection sequence is the strong spring (6), the hemispherical hinge anchor plate (3), the hemispherical hinge (4), and the fastening nut (10); the diameter of the hole (5) is slightly larger than the diameter of the anchor cable (1); The anti-slip structure further comprises a lubricant layer (8); the lubricant layer (8) is arranged between the hemispherical hinge anchor plate (3) and the hemispherical hinge (4); the lubricant layer (8) is filled with a lubricant; The anti-slip structure also includes a gasket A (7.1), which is respectively arranged on both sides of the powerful spring (6); the inner diameter of the gasket A (7.1) is larger than the diameter of the anchor cable (1) and smaller than the diameter of the powerful spring (6).

2. The deformable and adjustable anchor pile anti-slip structure according to claim 1 is characterized in that: The anti-slip structure also includes a gasket B (7.2), which is arranged between the fastening nut (10) and the hemispherical hinge (4); the inner diameter of the gasket B (7.2) is larger than the diameter of the anchor cable (1) and smaller than the outer diameter of the fastening nut (10).

3. The deformable and adjustable anchor pile anti-slip structure according to claim 1 is characterized in that: The hemispherical hinge anchor plate (3) in the anti-slip structure has a hole for the anchor cable (1) to pass through and has the same outer diameter as the hole for placing the strong spring (6).

4. The deformable and adjustable anchor pile anti-slip structure according to claim 2 is characterized in that: The anti-slip structure also includes a dust cover (9), wherein the dust cover (9) is arranged on the outside of the hemispherical hinge (4).

5. A method for achieving anti-slip using the anti-slip structure according to claim 4, characterized in that: The method comprises the following steps: S1. When pouring the pile body, when pouring to the pile end, the anchor cable hole (2) is formed according to the pile body and then constructed by drilling technology. A hemispherical hinge anchor plate (3) is arranged at the position (11) of the pile body where the anchor cable anchor plate is arranged, and is embedded in the load-bearing part of the pile end. The angle of the anchor cable hole (2) in the pile body is prefabricated according to the designed anchor rod angle, and the hole diameter of the anchor cable hole (2) is determined by the diameter of the anchor cable, the width of the pile body and the allowable deformation angle of the pile end; S2, the cable body of the anchor cable (1) passes through a hole (5) in the center of the hemispherical hinge (4) at the exposed part of the pile body, the hole (5) is perpendicular to the plane of the hemispherical hinge (4) and has a diameter slightly larger than the diameter of the anchor rod (1), and the hole (5) is used to assist grouting; one side of the plane of the hemispherical hinge (4) is connected to the anchor rod (1) by bolts after prestressing; S3. A strong spring (6) is arranged between the opening of the hemispherical hinge anchor plate (3) and the anchor cable hole (2) to adjust the displacement of the pile body. Gaskets (7) need to be added on both sides of the strong spring (6); S4. Adding a lubricant layer (8) between the hemispherical hinge (4) and the hemispherical hinge anchor plate (3) to make the connection between the hemispherical hinge (4) and the hemispherical hinge anchor plate (3) smoother, and adding a dust cover (9) to prevent external soil from invading the hemispherical hinge anchor plate (3) and affecting its rotation; S5. The anchor cable (1) is passed through the hole (5) reserved in the pile body and driven into the rock and soil at a predetermined design angle. The end is connected to the hemispherical hinge (4), and the nut (10) is tightened to ensure that the tension reaches a predetermined design value.

6. The method for achieving anti-slip according to claim 5, characterized in that: In the step S1, a PVC pipe is inserted into the anchor hole (2), and the anchor (1) is prefabricated with the PVC pipe at a design angle.

7. The method for achieving anti-slip according to claim 5, characterized in that: In the step S1, the anchor cable (1) is a bonded anchor cable.

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