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A kind of side empty repeated grouting anchor rod

A technology of repeated grouting and bolting, applied in the installation of bolts, mining equipment, earthwork drilling and mining, etc., can solve problems such as failure to focus on reinforcement, and achieve the effect of improving integrity and strength

Inactive Publication Date: 2017-12-12
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a side-space repeated grouting anchor, which solves the problem that the existing hollow grouting anchor can only be grouted once, and cannot use its grouting function to reinforce and repair the surrounding rock after the surrounding rock is broken again. Its focus on strengthening the problem

Method used

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  • A kind of side empty repeated grouting anchor rod
  • A kind of side empty repeated grouting anchor rod
  • A kind of side empty repeated grouting anchor rod

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Embodiment Construction

[0017] The present invention will be described in detail below in combination with specific embodiments.

[0018] Side empty repeated grouting anchor rod of the present invention, as Figure 1 to Figure 3 As shown, it includes a number of positioning brackets 1 correspondingly arranged in the upper and lower positions. The positioning bracket 1 is provided with a reinforcement groove 2 and a repeatable grouting pipe groove 3. The repeatable grouting pipe groove 3 is located on one side of the reinforcement groove 2. A rib 4 is placed in the material tank 2, a repeatable grouting pipe 5 is placed in the re-injection pipe groove 3, and a grouting small hole 6 is arranged on the re-injecting pipe 5, and the grouting small hole 6 is a one-way outlet The grout hole can achieve the purpose of repeated grouting.

[0019] Preferably, the repeatable grouting pipe 5 is a relatively hard elastic PVC grouting pipe. One or more ribs grooves 2 can be provided, and the ribs 4 are linear ri...

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Abstract

The invention discloses a side empty repeated grouting anchor rod, which comprises a plurality of positioning brackets correspondingly arranged in the upper and lower positions, the positioning bracket is provided with rib grooves and repeatable grouting pipe grooves, and the repeatable grouting pipe grooves are located in the reinforcement grooves On one side, the ribs are placed in the rib groove, and the repeatable grouting pipe is placed in the repeatable grouting pipe groove. Unidirectional slurry hole. The beneficial effect of the present invention is that the repeated grouting technique is used to grout the broken surrounding rock multiple times in good time, filling the cracks in the surrounding rock, improving the integrity and strength of the broken surrounding rock, while maintaining the strength and focus of the bolt itself, play its supporting role.

Description

technical field [0001] The invention belongs to the technical field of civil engineering equipment, and relates to a side space repeated grouting anchor rod. Background technique [0002] Anchor bolts (including anchor cables) are a very widely used geotechnical reinforcement technology and are widely used in mine support. Hollow grouting anchor rods (including hollow grouting anchor cables) are used in mines, especially in coal mine support, because of their low price and high pulling force, and have shown good results. However, the current hollow grouting bolt can only be grouted once, and it cannot use its grouting function to reinforce the surrounding rock and repair or reinforce the anchor point after the surrounding rock of the roadway is broken; at the same time, because it is a customized product, the design Flexibility is limited. Because the deep roadway has the characteristics of continuous large deformation, the result of continuous deformation of the roadway w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D21/00E21D20/02
Inventor 王树仁邹正盛刘磊吴刚郑清洁张劲松琚晓冬秦莞臻
Owner HENAN POLYTECHNIC UNIV