Method and device for local rockburst prevention and control in coal mine

A rock burst and partial technology, applied in mining devices, measuring devices, mining equipment, etc., can solve problems such as unsatisfactory coal seam application effects, high requirements for construction equipment, and difficult construction, so as to increase interconnection and enhance The effect of pressure relief and the effect of increasing the fracture degree of coal seam

Active Publication Date: 2022-02-01
中国煤炭地质总局勘查研究总院
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Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for local rock burst prevention and control in coal mines, which are used to solve the problems of high construction equipment requirements, high construction difficulty, high cost, low efficiency, and some rigidity in the coal seam large-diameter drilling pressure relief method. Coal seam application effect is not ideal

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  • Method and device for local rockburst prevention and control in coal mine
  • Method and device for local rockburst prevention and control in coal mine
  • Method and device for local rockburst prevention and control in coal mine

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Embodiment Construction

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically conn...

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Abstract

The present invention relates to the technical field of coal mine safety, and provides a method and device for preventing and controlling local rock burst in coal mines, wherein the method for preventing and controlling local rock burst in coal mines includes the following steps: performing conventional pressure relief drilling drilling operations and forced vibration Drilling operation of drilling, forming conventional pressure relief drilling and forced vibration drilling; repeating the drilling operation of the conventional pressure relief drilling and the drilling operation of the forced vibration drilling to make the conventional pressure relief The pressure drill holes and the forced vibration drill holes are alternately distributed until the local rockburst prevention and control work is completed. In the present invention, the pressure relief drill holes and the forced vibration drill holes are arranged alternately, and the forced vibration method can expand the location of the drill holes. Coal seam rupture radius, increase coal seam fissure, increase the interconnection and connection between borehole pressure relief areas, expand the range of coal seam weakening zone, reduce the number of pressure relief drilling holes, thereby improving pressure relief efficiency, reducing costs, and enhancing pressure relief Effect.

Description

technical field [0001] The invention relates to the technical field of coal mine safety, in particular to a method and device for preventing and controlling local rock burst in coal mines. Background technique [0002] Coal mine rock burst is a kind of dynamic disaster caused by the sudden and violent destruction of coal and rock masses such as underground roadways, coal pillars and mining working faces in coal mines. After entering the 21st century, with the continuous increase of mining depth and mining intensity in my country, the frequency and intensity of rock burst disasters have also increased significantly, and the number of rock burst mines has increased significantly. Rock burst has become one of the main dynamic disasters threatening the safety of coal mines in my country. [0003] As one of the main local relief methods for rock burst, large-diameter drilling in coal seams is widely used in mines. However, due to the need for large-caliber deep drilling in the ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F17/00G01N29/04G01N29/24
CPCE21F17/00G01N29/045G01N29/2412G01N2291/023
Inventor 郭爱军宁树正袁建江
Owner 中国煤炭地质总局勘查研究总院
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