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Flexible injection anchor rod

An anchor rod and flexible technology, which is applied in the installation of anchor rods, mining equipment, and earth-moving drilling, etc., to achieve the effect of safe and reliable anchor protection, shrinkage of the anchor rod body, and easy recycling.

Inactive Publication Date: 2008-07-23
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 easy-to-recycle flexible injection anchors

Method used

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Embodiment Construction

[0025] Describe the implementation process of the present invention in detail in conjunction with accompanying drawing, as shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6:

[0026] (1) The implementation process of flexible injection pressure bolt installation with rigid injection check valve

[0027] 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 ...

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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

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. Background technique [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 and ceme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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