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Flexible injection anchor rod

A bolt and flexible technology, which is applied in the installation of bolts, mining equipment, earthwork drilling and mining, etc., to achieve the effects of easy recycling, safe and reliable anchor protection, and simplified construction technology

Inactive Publication Date: 2005-05-25
山东省岩土与结构工程技术研究中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the various shortcomings of the existing bolt support facilities, and to invent a construction and installation that is easy to install, can automatically compensate the anchor hole changes caused by the displacement of the rock formation, and will not cause the bolt to loosen, and has reliable anchoring force. and new bolts that are easy to recycle

Method used

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Examples

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Embodiment Construction

[0025] (1) The implementation process of flexible injection pressure bolt installation with rigid injection check valve

[0026] The anchor body 1 of the flexible injection anchor installed with a rigid injection one-way valve is made of high-elastic polyurethane, which is cast or extruded, or rubber material is molded, and the surface is specially treated with steel wire or fiber material. Composite reinforced processing. When casting with polyurethane material, the casting mold should be processed according to the shape shown in Figure 1 before pouring. The female mold of the mold adopts an openable double-split structure, and the two ends of the female mold are provided with reinforced composite steel wire positioning holes or fiber material tensioning holes. , to facilitate the positioning of composite reinforced steel wires or fibers; after pouring, pull out the core mold (male mold) and open the female mold to form. When the polyurethane material is used for extrusion m...

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Abstract

The present invention relates to the field of mine engineering support installation technology, in particular, it relates to a flexible injection pressure anchor rod. Said invention adopts high-elasticity high-molecular material as main body material of anchor rod. Said anchor rod body is made into hollow structure, its hollow portion is a liquid-injecting (gas-injection) cavity, its one end is closed and the other end is equipped with an injection non return valve, its anchor rod body is made up by using steel wire or fibre material and high-elasticity high-molecular material and adopting intensive compounding process, and its injection non return valve is made up by using rigid material or elastic material.

Description

1. Technical field [0001] The invention relates to the technical field of geotechnical and mine engineering support facilities, in particular to a flexible injection pressure anchor rod. 2. Background technology [0002] In the mining process of geotechnical, tunnel and coal mines, bolt support is a surrounding rock control technology with two functions of support and reinforcement. Compared with the frame support, it has significant economic benefits and has been widely used in all countries Applications. After more than 40 years of research, exploration and practice in my country's bolt support technology, great progress has been made. [0003] The action principle, structure form and materials used of the anchor are various, and can be divided into end anchor anchor and full-length anchor anchor from the action principle. [0004] For full-length anchor bolts, according to the different anchoring adhesives, they are divided into resin anchor bolts, cement anchor bolts a...

Claims

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Application Information

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IPC IPC(8): E21D21/00
Inventor 宋振骐王威强崔宝春陈中和彭林军李象国汤建泉
Owner 山东省岩土与结构工程技术研究中心
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