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Coal mine roadway anchor cable supporting system

A technology for anchor cable support and coal mine roadway, which is applied in mining equipment, installation of bolts, earthwork drilling and mining, etc. It can solve the problems of poor yielding effect of the yielding tray, so as to improve the yielding capacity and reduce the degree of stress concentration , the effect of improving stability

Inactive Publication Date: 2020-05-08
CHANGZHOU INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is that the yielding effect of the yielding tray is relatively poor at present

Method used

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  • Coal mine roadway anchor cable supporting system
  • Coal mine roadway anchor cable supporting system
  • Coal mine roadway anchor cable supporting system

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Embodiment Construction

[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] In order to solve the problem that the pressure yielding effect of the yielding tray is poor in the current anchor cable support system of coal mine roadway, the present invention provides a cable anchor support system for coal mine roadway, see figure 1 , figure 2 As shown, the coal mine roadway anchor cable support system includes a roadway 1, an anchor cable 2, a pressure relief tray 3 and an anchor 4; wherein, the pressure relief tray 3 is connected to the inner side of the roadway 1; the pressure relief tray 3 includes a circular arc-shaped The tray 32 and the bottom plate 33 of the raised structure, the tray 32 is fixedly connected with the bottom plate 33, and the bottom plate 33 is fixedly connected with the roadway 1; The...

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Abstract

The invention provides a coal mine roadway anchor cable supporting system, and relates to the technical field of coal mine roadway supporting. The coal mine roadway anchor cable supporting system comprises a roadway, an anchor cable, a yielding tray and an anchoring part, wherein the yielding tray is connected to the inner side of the roadway; the yielding tray comprises a tray body of an arc-shaped protruding structure and a bottom plate, the tray body is fixedly connected with the bottom plate, the bottom plate is fixedly connected with the roadway; the tray comprises an inner-layer tray andan outer-layer tray which are adjacently arranged, a gap is formed between the inner-layer tray and the outer-layer tray; and the anchor cable sequentially penetrates through the yielding tray, the roadway and is arranged in the inner part of a surrounding rock, and the anchor cable is fixedly connected with the yielding tray through the anchoring part. According to the coal mine roadway anchor cable supporting system, the yielding capacity and the bearing capacity of the yielding tray can be improved, the stress concentration degree is reduced, roof separation of the roadway is slowed down,the stability of a roadway roof structure is improved, and the production safety is improved.

Description

technical field [0001] The invention relates to the technical field of coal mine roadway support, in particular to a coal mine roadway anchor cable support system. Background technique [0002] The combined support of anchor rod, anchor cable and metal mesh is a support form often used in coal mine roadways. The mechanical properties of the surrounding rock are improved through the anchoring effect of the bolt, so that the weak surrounding rock around the roadway forms a relatively complete anchor body; the anchor cable mainly It is shown as the suspension effect on the roof of the roadway to reduce the separation of the roof and increase the stability of the surrounding rock. [0003] For complex conditions, especially for deep high-in-situ stress and long-span roadways, the separation layer deformation of the roadway roof is particularly serious, and the roadway roof is supported only by the suspension of anchor cables, resulting in insufficient stability of the roadway ro...

Claims

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Application Information

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IPC IPC(8): E21D20/00
CPCE21D20/00
Inventor 李鹏波王正义
Owner CHANGZHOU INST OF TECH
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