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Underground coal mining working face regulation and control method

A technology for coal mining and working face, applied in underground mining, surface mining, earthwork drilling, etc., can solve the problems of inability to effectively judge working face, unfavorable source of coal mine damage mining, etc., so as to improve the level of green mining and enhance the ecological function of the mining area. Effect

Pending Publication Date: 2022-03-01
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Based on this, it is necessary to provide an underground coal mining face control method for the technical problem that the existing technology cannot effectively judge whether the working face is a super high or super long working face, which is not conducive to the mining of coal mine sources.

Method used

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  • Underground coal mining working face regulation and control method
  • Underground coal mining working face regulation and control method
  • Underground coal mining working face regulation and control method

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Experimental program
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Effect test

Embodiment 1

[0045] Such as figure 1 Shown is a working flow chart of a method for regulating and controlling an underground coal mining working face of the present invention, including:

[0046] Step S101, obtaining the influence parameters of super-high and super-long working face;

[0047] Step S102, calculating the super-elevation threshold of the underground coal mining working face according to the influence parameters of the super-high and super-long working face;

[0048] Step S103, comparing the mining height of the underground coal mining working face with the superelevation threshold of the underground coal mining working face, and judging whether the underground coal mining working face is a super high working face;

[0049] Step S104, calculating the super-long threshold of the underground coal mining working face according to the influence parameters of the super-high and super-long working face;

[0050] Step S105, comparing the length of the underground coal mining workin...

Embodiment 2

[0057] Such as figure 2 Shown is a working flow chart of an underground coal mining face control method in an embodiment of the present invention, including:

[0058] Step S201, obtaining the influence parameters of the super-high and super-long working face, the super-high and super-long working face influencing parameters are the buried depth of the underground coal mining working face and the mining height of the underground coal mining working face;

[0059] Step S202, calculating the ultra-high threshold of the underground coal mining face Where M is the ultra-high threshold of the underground coal mining face, and H is the buried depth of the underground coal mining face;

[0060] Step S203, comparing the mining height of the underground coal mining face with the ultra-high threshold of the underground coal mining face;

[0061] Step S204, if m

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Abstract

The invention discloses an underground coal mining working face regulation and control method. The method comprises the steps that influence parameters of an ultrahigh and overlong working face are obtained; calculating an ultrahigh threshold value of the underground coal mining working face; the mining height of the underground coal mining working face is compared with an ultrahigh threshold value of the underground coal mining working face, and whether the underground coal mining working face is an ultrahigh working face or not is judged; calculating an ultra-long threshold value of the underground coal mining working face; the length of the underground coal mining working face is compared with an ultra-long threshold value of the underground coal mining working face, and whether the underground coal mining working face is an ultra-long working face or not is judged; and regulating and controlling the mining height of the underground coal mining working face and / or regulating and controlling the length of the underground coal mining working face according to the judgment result of the underground coal mining working face. According to the method for judging the ultra-high and ultra-long working face, the working face is effectively regulated and controlled, optimization and adjustment of the mining height of a mining source and the length of the working face are facilitated, the green mining level is improved, and the ecological function of a mining area is enhanced.

Description

technical field [0001] The invention relates to the technical field related to coal mines, in particular to a control method for an underground coal mining working face. Background technique [0002] At present, high-efficiency and high-yield coal working faces are gradually transforming to high-yield, high-efficiency, and high-quality mining. High-quality means eco-friendly mining or low-damage mining. In the past, low-damage mining often used to increase the length of the working face or adopt no coal pillar mining, the purpose of which is to effectively increase the uniform settlement proportion of the working face, so as to achieve low-damage mining. [0003] To achieve low-damage mining, it is necessary to determine the parameters of underground mining damage reduction. The existing methods for determining loss reduction parameters in underground mining mainly use Flac3D software to simulate super-large coal working faces. The key parameters of underground working fac...

Claims

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Application Information

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IPC IPC(8): E21C41/18
CPCE21C41/18
Inventor 刘新杰杨英明赵勇强张国军何瑞敏
Owner CHNA ENERGY INVESTMENT CORP LTD