Prestressed anchor cable for slope surface

Abstract

The utility model relates to the technical field of anchor cable, concretely is a kind of for the prestressed anchor cable of slope surface, it includes: positioning rib plate, the positioning rib plate is the disc structure of eight positioning arc grooves being set on outer surface, and the inner surface of disc structure is provided with multiple through holes and a grouting hole;Anchor cable body, the quantity of anchor cable body is eight, and eight the anchor cable body is distributed in the positioning arc groove of positioning rib plate outer surface.This utility model can be based on the setting of positioning rib plate, so that the anchor cable body quantity increases to eight, and cooperate with the setting of guide cap and steel backing plate and grouting pipe, can constitute the prestressed anchor cable with eight anchor cable body, and anchoring section is eight meters, and adopts hole bottom grouting, to improve the bearing and stress dispersion capacity of this prestressed anchor cable, and can better constraint the deformation of rock mass or soil body, maintain the stability of engineering structure.

Description

Technical Field

[0001] This utility model relates to the field of anchor cable technology, specifically a prestressed anchor cable for slopes. Background Technology

[0002] Prestressed anchor cables are cable-like supports that are anchored to the interior of rock mass using prestressing methods, and are used to reinforce slopes. The anchor cable is anchored into the rock mass through a hole in the weak structural surface of the rock mass by the anchor head, connecting the sliding mass to the stable rock layer, thereby changing the stress state of the slope rock mass and improving the integrity and strength of the unstable rock mass of the slope.

[0003] Currently, in situations where the rock mass near a fault zone is relatively fractured and several obvious single-slope deformations have been found at the upper permanent slope, leading to a reduction in slope stability and safety, traditional prestressed anchor cables with three or five steel strands cannot provide sufficient load-bearing and stress dispersion capabilities during use, nor can they better restrain the deformation of the rock or soil and maintain the stability of the engineering structure. Therefore, we propose a prestressed anchor cable for slopes. Utility Model Content

[0004] The purpose of this invention is to provide a prestressed anchor cable for slopes, which has the advantage of good stability. It solves the problem that traditional prestressed anchor cables with three or five steel strands cannot provide sufficient load-bearing capacity and stress dispersion capacity, and cannot better restrain the deformation of rock or soil and maintain the stability of the engineering structure, when the rock mass near the structural fault zone is relatively broken and several obvious single-slope deformations are found at the upper permanent slope.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prestressed anchor cable for slopes, comprising:

[0006] The positioning rib is a disc-shaped structure with eight positioning arc grooves on its outer surface, and the inner surface of the disc-shaped structure has multiple through holes and a grouting hole.

[0007] The anchor cable body consists of eight bundles, which are distributed within the positioning arc groove on the outer surface of the positioning rib plate. A guide cap is provided at the left end of the anchoring section of the anchor cable body, and a pressure-resistant pipe for the free section is provided on the outer surface of the free section of the anchor cable body. An anchor is provided at the right end of the tensioning section of the anchor cable body. A steel pad is provided on the left side of the anchor and on the outer surface of the right end of the tensioning section of the anchor cable body. A grouting pipe penetrating the right side of the anchor is provided in the grouting hole of the positioning rib plate.

[0008] Preferably, the length of the anchoring section of the anchor cable is eight meters.

[0009] Preferably, a guide plate is provided below the positioning rib, and guide grooves are provided on the inner surfaces of both the front and rear ends of the guide plate.

[0010] Preferably, a guide pad is fixedly connected to the left end of the top of the guide plate, and brackets are fixedly connected to the left and right ends of the front and rear sides of the guide plate.

[0011] Preferably, a left fixed plate and a right fixed plate are fixedly connected to the left and right ends of the bottom of the guide plate, respectively. A drive motor is fixedly installed on the right side of the right fixed plate. A drive threaded rod is fixedly connected to the output end of the drive motor, and the left end of the drive threaded rod is movably connected to the left fixed plate through a bearing.

[0012] Preferably, the right end of the outer surface of the drive threaded rod is threaded to the T-shaped moving block, and both ends of the T-shaped moving block are provided with connecting bolts, and one end of the connecting bolt passes through the guide groove and is threaded to the bottom of the steel pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model, based on the setting of positioning ribs, increases the number of anchor cable bundles to eight. With the addition of guide caps, steel pads, and grouting pipes, it can form a prestressed anchor cable with eight anchor cable bundles and an anchoring section of eight meters. Grouting is used at the bottom of the hole, thereby improving the load-bearing capacity and stress dispersion capacity of the prestressed anchor cable, and better restraining the deformation of rock or soil, maintaining the stability of the engineering structure. Attached Figure Description

[0015] Figure 1 This is a first-view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the steel pad and anchor structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the guide plate structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the third-view cross-sectional structure of this utility model.

[0020] In the diagram: 1. Positioning rib; 101. Anchor cable body; 102. Guide cap; 103. Free section pressure-resistant pipe; 104. Steel pad; 105. Anchor; 106. Grouting pipe; 2. Guide plate; 201. Bracket; 202. Right fixing plate; 203. Guide groove; 204. Guide pad; 205. Left fixing plate; 3. Drive motor; 301. T-shaped moving block; 302. Drive threaded rod; 303. Connecting bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The positioning rib plate 1, anchor cable body 101, guide cap 102, free section pressure-resistant pipe 103, steel pad plate 104, anchor 105, grouting pipe 106, guide plate 2, bracket 201, right fixing plate 202, guide groove 203, guide pad block 204, left fixing plate 205, drive motor 3, T-shaped moving block 301, drive threaded rod 302 and connecting bolt 303 of this application are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0025] Example 1

[0026] Please see Figures 1-5 As shown, this utility model provides a technical solution: a prestressed anchor cable for slopes, comprising:

[0027] Positioning rib 1 is a disc-shaped structure with eight positioning arc grooves on its outer surface, and multiple through holes and one grouting hole are opened on the inner surface of the disc-shaped structure.

[0028] Anchor cable 101, there are eight bundles of anchor cable 101, and the eight bundles of anchor cable 101 are distributed in the positioning arc groove on the outer surface of the positioning rib plate 1. A guide cap 102 is provided at the left end of the anchoring section of the anchor cable 101. A pressure-resistant pipe 103 is provided on the outer surface of the free section of the anchor cable 101. An anchor 105 is provided at the right end of the tensioning section of the anchor cable 101. A steel pad 104 is provided on the left side of the anchor 105 and on the outer surface of the right end of the tensioning section of the anchor cable 101. A grouting pipe 106 is provided in the grouting hole of the positioning rib plate 1, penetrating the right side of the anchor 105.

[0029] The length of the anchoring section of anchor cable body 101 is eight meters.

[0030] This technical solution features an anchor cable horizontal spacing of 3m and a borehole diameter of not less than 130mm. Through the placement of the positioning rib plate 1 and the anchor 105, the number of anchor cable bodies 101 is increased to eight bundles. Combined with the guide cap 102, steel pad 104, and grouting pipe 106, this forms a prestressed anchor cable with eight bundles of anchor cable bodies 101. Simultaneously, the free section pressure-resistant pipe 103 protects the free section of the prestressed anchor cable. The anchorage section of this prestressed anchor cable is eight meters long. During grouting via the grouting pipe 106, the grout gradually fills the hole at the guide cap 102, thereby improving the load-bearing capacity of the prestressed anchor cable, as more anchor cable bodies 101 mean it can withstand greater loads. The greater tensile strength allows for better resistance to various external forces encountered by the structure, such as slope slippage, effectively preventing structural deformation, displacement, or even failure. Furthermore, it ensures a more even distribution of stress across each anchor cable body 101, effectively avoiding stress concentration. This fully utilizes the strength of each anchor cable body 101, improving the reliability and durability of the prestressed anchor and reducing the risk of breakage due to excessive local stress. Simultaneously, under complex geological conditions, such as soft soil foundations and fractured rock masses, the eight anchor cable bodies 101 provide more stable anchoring, better restraining rock or soil deformation and maintaining structural stability. For example, in tunnel engineering, it effectively prevents the loosening and collapse of the surrounding rock.

[0031] Example 2

[0032] Based on Embodiment 1, this utility model is as follows: Figures 1-5 As shown, a guide plate 2 is provided below the positioning rib plate 1. Guide grooves 203 are provided on the inner surfaces of both the front and rear ends of the guide plate 2. A guide pad 204 is fixedly connected to the left end of the top of the guide plate 2. A bracket 201 is fixedly connected to the left and right ends of both the front and rear sides of the guide plate 2. A left fixed plate 205 and a right fixed plate 202 are fixedly connected to the left and right ends of the bottom of the guide plate 2, respectively. A drive motor 3 is fixedly installed on the right side of the right fixed plate 202. A drive threaded rod 302 is fixedly connected to the output end of the drive motor 3. The left end of the drive threaded rod 302 is movably connected to the left fixed plate 205 through a bearing. The right end of the outer surface of the drive threaded rod 302 is threadedly connected to a T-shaped moving block 301. A connecting bolt 303 is provided at both the front and rear ends of the T-shaped moving block 301. One end of the connecting bolt 303 passes through the guide groove 203 and is threadedly connected to the bottom of the steel pad plate 104.

[0033] This technical solution: By setting the guide plate 2 and the guide pad 204, the prestressed anchor cable can be placed on top of it. Then, the connecting bolt 303 is passed through the front and rear ends of the T-shaped moving block 301 and the guide groove 203, so that the connecting bolt 303 can be threadedly connected to the steel pad 104. After determining the insertion angle of the prestressed anchor cable as needed, the position of the bracket 201 is fixed. Then, the external controller turns on the drive motor 3 to drive the drive threaded rod 302 to rotate, so that the T-shaped moving block 301 can move to the left on the outer surface of the drive threaded rod 302. When the T-shaped moving block 301 moves, it can drive the steel pad 104 to move through the connecting bolt 303 and the guide groove 203. When the steel pad 104 moves, it can drive the entire prestressed anchor cable to move smoothly to the left and correctly enter the hole.

[0034] It should be noted that the anchor 105 is directly installed on the steel pad 104, which is the existing technology. The anchor 105 is fixed to the steel pad 104 through the bolt holes or grooves of the base (such as the anchor ring), forming a force transmission path of "anchor body 101 → anchor 105 → steel pad 104 → anchored structure". When the steel pad 104 moves, the anchor 105, the anchor body 101, the positioning rib plate 1, and the guide cap 102 can move.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A prestressed anchor cable for slopes, characterized in that, include: Positioning rib (1), the positioning rib (1) is a disc-shaped structure with eight positioning arc grooves on the outer surface, and the inner surface of the disc-shaped structure is provided with multiple through holes and a grouting hole; Anchor cable body (101), the number of anchor cable bodies (101) is eight bundles, and the eight bundles of anchor cable bodies (101) are distributed in the positioning arc groove on the outer surface of the positioning rib plate (1). A guide cap (102) is provided at the left end of the anchoring section of the anchor cable body (101). A pressure-resistant pipe (103) for the free section of the anchor cable body (101) is provided on the outer surface of the free section of the anchor cable body (101). An anchor (105) is provided at the right end of the tensioning section of the anchor cable body (101). A steel pad plate (104) is provided on the left side of the anchor (105) and on the outer surface of the right end of the tensioning section of the anchor cable body (101). A grouting pipe (106) penetrating the right side of the anchor (105) is provided in the grouting hole of the positioning rib plate (1).

2. A prestressed anchor cable for slopes according to claim 1, characterized in that: The length of the anchoring section of the anchor cable body (101) is eight meters.

3. A prestressed anchor cable for slopes according to claim 1, characterized in that: A guide plate (2) is provided below the positioning rib (1), and guide grooves (203) are provided on the inner surfaces of both the front and rear ends of the guide plate (2).

4. A prestressed anchor cable for slopes according to claim 3, characterized in that: A guide pad (204) is fixedly connected to the left end of the top of the guide plate (2), and brackets (201) are fixedly connected to the left and right ends of the front and rear sides of the guide plate (2).

5. A prestressed anchor cable for slopes according to claim 4, characterized in that: The left and right fixed plates (205 and 202) are fixedly connected to the bottom of the guide plate (2), respectively. A drive motor (3) is fixedly installed on the right side of the right fixed plate (202). A drive threaded rod (302) is fixedly connected to the output end of the drive motor (3), and the left end of the drive threaded rod (302) is movably connected to the left fixed plate (205) through a bearing.

6. A prestressed anchor cable for slopes according to claim 5, characterized in that: The right end of the outer surface of the drive threaded rod (302) is threaded to the T-shaped moving block (301). Both ends of the T-shaped moving block (301) are provided with connecting bolts (303), and one end of the connecting bolt (303) passes through the guide groove (203) and is threaded to the bottom of the steel pad (104).

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