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Coal mine local rock burst prevention method and device

A rock burst and partial technology, applied in mining equipment, measuring equipment, mining equipment, etc., can solve problems such as low efficiency, difficult construction, and high requirements for construction equipment

Active Publication Date: 2020-10-02
中国煤炭地质总局勘查研究总院
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  • Description
  • Claims
  • Application Information

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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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  • Coal mine local rock burst prevention method and device
  • Coal mine local rock burst prevention method and device
  • Coal mine local rock burst prevention method and device

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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 can be mechanically conn...

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Abstract

The invention relates to the technical field of coal mine safety and provides a coal mine local rock burst prevention method and device. The coal mine local rock burst prevention method includes the following steps that drilling work of conventional pressure release drill holes and drilling work of forced vibration drill holes are conducted respectively, and the conventional pressure release drillholes and the forced vibration drill holes are formed; and the drilling work of the conventional pressure release drill holes and the drilling work of the forced vibration drill holes are repeated sothat the conventional pressure release drill holes and the forced vibration drill holes can be distributed in a staggered manner till the local rock burst prevention work is completed. By means of the coal mine local rock burst prevention method and device, the pressure release drill holes and the forced vibration drill holes are arranged in the staggered manner, the coal bed cracking radius of the drill hole positions can be enlarged through a forced vibration method, the coal bed fracture degree is increased, mutual connection and communication between drill hole pressure release areas areimproved, the range of a coal bed weakening zone is enlarged, the number of the pressure release drill holes is reduced, the pressure release efficiency is improved, the cost is reduced, and the pressure release effect is improved.

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 ...

Claims

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Application Information

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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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