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Layout method of gas control roadway under mining protection layer

A roadway layout and protective layer technology, which is applied in the direction of gas discharge, mining equipment, earthwork drilling, etc., can solve the problems of short service cycle and single function of gas control roadway, achieve long service cycle of roadway, improve safety and reliability, save The effect of ventilation costs

Active Publication Date: 2022-08-02
淮南煤矿勘察设计院有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that in the prior art, the service cycle of the gas control roadway is short, the function is single, and multiple roadways need to be constructed

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  • Layout method of gas control roadway under mining protection layer
  • Layout method of gas control roadway under mining protection layer
  • Layout method of gas control roadway under mining protection layer

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Embodiment Construction

[0030] In order to make the purposes, 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 embodiments of the present invention. Obviously, the described embodiments are part of the present invention. examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] This embodiment discloses a multi-purpose lower protective layer gas control method in one lane. In this embodiment, the concepts of the protective layer and the protected layer are:

[0032]The coal seam or ore seam that is mined first in order to eliminate or weaken the danger of outburst or rock burst of the adjacent coal seam is called the protective layer; t...

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Abstract

The invention provides a method for arranging gas control tunnels in a protective layer under mining. The working face of the lower protective layer is continuously mined, and the space position of the gas control roadway on the protective layer working face is reasonably arranged to avoid the influence of mining dynamic pressure on the protective layer working face, which is conducive to the construction of gas control drilling and ensures that the roadway can be used for the protective layer working face for a long time. Construction of relevant gas control boreholes during mining. Adopt the mining mode of "one side and three lanes" protective layer, formulate the gas control plan for the working face of the protective layer and the working face of the protected layer in advance, prepare the roadway for gas control on the working face of the protective layer in advance, and use the roadway construction in advance according to the different time periods of mining. Drilling through the lower layer or drilling through the upper layer realizes the gas control of different working faces, with high gas control efficiency and long roadway service cycle, so that one protective layer working face gas control roadway can serve the gas control of 4 working faces. 9 functions, functionally realized "multi-purpose in one lane".

Description

technical field [0001] The invention relates to the technical field of gas treatment in coal mines, in particular to a method for arranging gas treatment tunnels in a protective layer under mining. Background technique [0002] Coal and gas outbursts seriously threaten the safety of coal mine production. The pressure relief effect of the mining protective layer on the protected layer is very uniform, and it is the most reliable and effective anti-outburst measure; therefore, the protective layer must be mined in the outburst dangerous area that has the conditions for mining the protective layer. When mining the protective layer, the pressure-relieving gas must be extracted from the protected layer at the same time, so as to improve the protection effect of the protected layer and prevent the gas from the protected layer from flooding into the working face of the protective layer, threatening production safety. During the mining process of the lower protective layer, there a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F7/00
CPCE21F7/00
Inventor 童校长王永周言安程海燕周韬叶春辉杨洋陈本良郝元伟毕波
Owner 淮南煤矿勘察设计院有限责任公司
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