CN213980834U

CN213980834U - Anchor cable bundle fixing device

Info

Publication number: CN213980834U
Application number: CN202023194429.9U
Authority: CN
Inventors: 李晓; 贾倩; 褚文强; 吴海
Original assignee: Hunan University of Science and Technology
Current assignee: Hunan University of Science and Technology
Priority date: 2020-12-19
Filing date: 2020-12-19
Publication date: 2021-08-17
Anticipated expiration: 2030-12-19

Abstract

The utility model relates to the field of mine anchoring support, in particular to a grouting anchor cable bundle fixing device used for roadway support under complex and difficult conditions such as mine soft rock, broken zone, deep well and high stress area. The device includes a square fixing plate, and several fins that protrude and bend from the periphery of the fixing plate respectively; The four corners are respectively provided with a rigid stranded wire hole for fixing the anchor cable bundle. The device solves the phenomenon that during the grouting process, the anchor cable bundle slides downward due to its own gravity, resulting in poor grouting, insufficient anchoring strength and poor supporting effect. The fixing device has strong flexibility, wide application range, does not damage the anchoring structure itself, and can also play an anchoring role in the drilling hole of the surrounding rock wall.

Description

Anchor cable bundle fixing device

Technical Field

The utility model relates to a mine anchor support field, especially a slip casting anchor rope bundle fixing device that is used for tunnel support under complicated difficult conditions such as soft rock in mine, broken area, deep well, high stress area.

Background

With the annual increase of the mining depth of the mines, most of the mines enter deep mining in sequence, the geological conditions are more and more complicated, the mine pressure is more and more large, and the roadway supporting difficulty is more and more large. The grouting anchor cable bundle is used for roadway support under deep high-stress complex geological conditions in China, and a certain effect is achieved. However, for some special and complicated areas, the rock mass above the roadway surrounding rock needs to be reinforced by grouting with anchor cable bundles. In the grouting process, the influence of the self gravity of the anchor cable bundle and the height difference of the terrain causes the anchor cable bundle to slide downwards in the grouting process, so that the grouting is not tight, and the grouting effect and the grout diffusion range are difficult to guarantee. The problems of insufficient support strength, insufficient support range and large roadway deformation of the anchor cable bundle are caused. Therefore, seek an anchor rope and restraint fixing device, can effectively control the slip of anchor rope bundle when for anchor rope bundle slip casting, control anchor rope bundle position, ensure that the slip casting is more closely knit, make anchor rope bundle and concrete interlock inseparabler, make anchor rope bundle have bigger anchoring performance, provide great anchor power, prevent that the slip casting from not strictly influencing its and strut, have important meaning to the construction quality and the security of control coal mine tunnel anchor engineering.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can effectively fix anchor rope and restraint position, the anchor rope that prevents when the slip casting the anchor rope and restraint fixing device that down slides because of the action of gravity.

The purpose of the utility model is realized through the following ways: an anchor cable bundle fixing device comprises a square fixing plate and a plurality of fins, wherein the periphery of the fixing plate extends out and is bent; the center of the fixing plate is provided with a grouting pipe hole for fixing an anchor cable bundle grouting pipe, and four corners of the fixing plate are respectively provided with a rigid strand hole for fixing an anchor cable bundle.

As a further optimization of the scheme, the fins are triangular, and the four sides of the fixing plate are respectively provided with one fin.

As a further optimization of the scheme, the distance between the vertexes of the two opposite fins is larger than the diameter of the drilled hole.

As a further optimization of the scheme, the rigid strand hole is an arc-shaped notch.

As a further optimization of the scheme, the fixing plates and the fins are made of manganese steel materials.

The utility model discloses fixing device is restrainted to anchor rope, the device have been solved at the slip casting in-process, and the anchor rope is restrainted because of self gravity slides downwards, leads to the slip casting not tight, and anchoring strength is not enough, struts the poor phenomenon of effect. The fixing device is high in flexibility and wide in application range, does not damage the anchoring structure, and can play an anchoring role in the surrounding rock wall drilling hole.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic view of the installation of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic side view of the present invention;

in the figure, 1 is a grouting pipe, 2 is an anchor cable bundle, 3 is a drilling groove, 4 is an anchor cable bundle fixing device, 5 is a guide pipe, 6 is a fin, 7 is a rigid strand hole, 8 is a grouting pipe hole, 9 is a fixing plate, and 10 is a drilling hole.

Detailed Description

As shown in fig. 1, 2 and 3, the anchor cable bundle fixing device of the present invention comprises a square fixing plate 9 and a plurality of fins 6 extending and bending around the fixing plate 9; the fixing plate 9 and the fins 6 are made of manganese steel materials.

The center of the fixing plate 9 is provided with a grouting pipe hole 8 for fixing the anchor cable bundle grouting pipe 1, and four corners of the fixing plate 9 are respectively provided with a rigid stranded wire hole 7 for fixing the anchor cable bundle 2.

The fins 6 are triangular, and the four sides of the fixing plate 9 are respectively provided with one fin 6. The distance between the peaks of the two opposite fins 6 is larger than the diameter of the drill hole 10.

The rigid stranded wire hole 7 is an arc-shaped gap.

The utility model discloses fixing device is restrainted to anchor rope's operation process as follows:

A. cutting the manganese steel sheet into the anchor cable bundle fixing device with the shape shown in the figure 2;

B. and determining the position of the anchor cable bundle fixing device according to the position of the roadway drilling and the length of the anchor cable bundle. An anchor cable bundle composed of steel strands penetrates through a rigid strand hole in an anchor cable bundle fixing device, and a grouting pipe penetrates through a grouting pipe hole in the anchor cable bundle fixing device;

C. further, the anchor cable bundles penetrating through the rigid strand hole are bound by steel wires in front and at back of the anchor cable bundle fixing device, and the anchor cable bundles extending into the guide pipe and the end of the grouting pipe are bound by the steel wires, so that the positions of the anchor cable bundles are fixed better;

D. further, the grouting pipe penetrates through a grouting hole in the anchor cable bundle fixing device, then the fin in the anchor cable bundle fixing device is bent along the overlapping part of the fixed plate and the side length of the fin, the bent fin needs to be close to the anchor cable hole, and the specific figure is shown in detail in fig. 3;

E. and pushing the anchor cable bundle fixing device into the pre-dug drilling groove, and fixing the fins around the anchor cable bundle on the inner wall of the drilling hole to form primary fixing when the anchor cable bundle is not pushed forwards any more. When concrete is poured in the drill hole, when the steel sheet receives the self gravity of the concrete and the downward acting force of the concrete, the fins on the periphery of the anchor cable bundle fixing device can be further expanded to the periphery, so that the anchor cable bundle fixing device is more stably fixed on the inner wall of the drill hole, the position of the anchor cable bundle penetrating through the fixing device is also fixed, and when grouting is performed, the anchor cable bundle is effectively prevented from sliding downwards, and the grouting is more compact.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions thought by the inventive work within the technical scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. An anchor cable bundle fixing device, characterized in that: the device comprises a square fixing plate (9), and several fins (6) extending and bending from the periphery of the fixing plate (9) respectively; the described The center of the fixing plate (9) is provided with a grouting pipe hole (8) for fixing the anchor cable bundle grouting pipe (1), and four corners of the fixing plate (9) are respectively provided with a grouting pipe hole (8) for fixing the anchor cable bundle ( 2) of the stranded wire hole (7).

2 . The anchor cable bundle fixing device according to claim 1 , wherein the fins ( 6 ) are triangular, and four sides of the fixing plate ( 9 ) are respectively provided with a fin ( 6 ). 3 .

3. The anchor cable bundle fixing device according to claim 1 or 2, characterized in that: the distance between the vertexes of two opposite fins (6) is greater than the diameter of the bore hole (10).

4 . The anchor cable bundle fixing device according to claim 1 , wherein the rigid strand hole ( 7 ) is an arc-shaped notch. 5 .

5 . The anchor cable bundle fixing device according to claim 1 , wherein the fixing plate ( 9 ) and the fins ( 6 ) are made of manganese steel. 6 .