Mining impingement prevention anchor rod and mounting method thereof

Abstract

The embodiment of the invention provides a mining impingement prevention anchor rod and a mounting method thereof. The mining impingement prevention anchor rod comprises a rod body and a yielding structure. One end of the rod body is anchored into a preset drill hole in surrounding rock of a mine. The yielding structure is arranged on the rod body in a sleeving mode through the other end of the rod body and attached to the surface of the surrounding rock. The yielding structure is used for diffusing and releasing the surrounding rock stress, generated due to impact ground pressure, in the surrounding rock. By means of the mining impingement prevention anchor rod and the mounting method thereof, the surrounding stress generated by impact ground pressure is diffused and released to a certain degree, the service life of the anchor rod is prolonged, normal use of a roadway under the impact ground pressure is guaranteed, and safety production is guaranteed.

Description

technical field [0001] The embodiment of the invention relates to bolt technology, in particular to a mining anti-scour bolt and a method for installing the anti-scour bolt. Background technique [0002] When underground rock burst occurs in coal mines, the release of rock formation stress will increase the stress on the surrounding rock of the roadway. Usually, bolts are used as the roadway support of the coal mine to strengthen the surrounding rock of the roadway together. [0003] The existing bolt structure, when the rock burst occurs, it is easy to be unable to bear the sudden increase of the pressure and fail, or even break due to exceeding the yield stress, resulting in violent deformation of the surrounding rock of the roadway without support, which will cause serious damage to the roadway. It cannot be used normally due to major damage, which also poses a serious threat to the safe production of the mine. [0004] At present, most of them start from improving the m...

AI Technical Summary

Problems solved by technology

[0003] The existing bolt structure, when the rock burst occurs, it is easy to be unable to bear the sudden increase of the pressure and fail, or even break due to exceeding the yield stress, resulting in violent deformation of the surrounding rock of the roadway without support, which will cause serious damage to the roadway. It cannot be used normally due to major damage, and it also poses a serious threat to the safe production of the mine.

[0004] At present, most of them start with improving the mechanical properties of the rock bolt body, and invest a lot of manpower, material resources and financial resources to develop new rock bolt body materials, but the damage caused by rock burst has not been greatly alleviated.

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