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A comprehensive outburst prevention method for large buried depth and gently inclined coal seam area

A gently inclined and regional technology, which is applied in the comprehensive outburst prevention field in the gently inclined coal seam area with large buried depth, can solve the problems of high cost, long cycle, complicated process, etc., and achieve the effect of ensuring safe mining, reducing cost and workload

Active Publication Date: 2019-03-26
中国平煤神马控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is generally accepted that mining a protective layer without the risk of double outburst is a safe and effective measure to effectively reduce or eliminate the risk of coal and gas outburst in the protected layer. High, long period, complicated process, not suitable for all high gas and outburst coal seams

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  • A comprehensive outburst prevention method for large buried depth and gently inclined coal seam area
  • A comprehensive outburst prevention method for large buried depth and gently inclined coal seam area
  • A comprehensive outburst prevention method for large buried depth and gently inclined coal seam area

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] This embodiment is aimed at Pingdingshan Coal No. 10 Coal Mine 15-16 For the coal and gas outburst situation in the coal seam 24080 working face, a comprehensive outburst prevention method provided by the present invention is used for the outburst prevention treatment in the deep and gently inclined coal seam area, such as figure 1 As shown, it specifically includes the following steps:

[0030] Step 1: Predict the outburst risk of the coal seam area to be mined;

[0031] According to the exposure of the working face of the coal seam to be mined, the lithology of the roof and floor of the working face and the gas parameters of the working face are ascertained, com...

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Abstract

The invention provides a comprehensive anti-outburst method of a great buried depth gently inclined coal bed area, and relates to the technical field of coal mine safety. According to the comprehensive anti-outburst method of the great buried depth gently inclined coal bed area, by firstly carrying out an anti-outburst measure on a stoping working surface machinery roadway of a great buried depth gently inclined coal bed, and then carrying out an anti-outburst measure on a stoping working surface, pumping and mining of vas on a tunneling working surface are achieved, pumping and mining of vas on the stoping working surface are also achieved, the problem that the vas exceeds the limit in a working surface mining process can be prevented, and the cost and workload in controlling the vas are sharply lowered. Besides, through anti-outburst effect verification and region verification which are conducted after the anti-outburst measure is carried out, the vas controlling effect of the anti-outburst measure is guaranteed, and safe mining of an outburst dangerous coal bed is guaranteed.

Description

technical field [0001] The invention relates to the technical field of coal mine safety, in particular to a comprehensive outburst prevention method for large buried deep and gently inclined coal seam regions. Background technique [0002] The occurrence conditions of coal seams in underground mining in my country are complex and changeable, and coal and gas outburst accidents occur frequently. In the past ten years, with the increase of mining depth, the mining conditions have become more complex, and the characteristics of high ground stress, high gas, high heterogeneity, low permeability, and low strength coal have appeared, resulting in coal mining enterprises. The number of serious accidents remains high. Therefore, effective control of gas, reduction and elimination of gas accidents are the key to the healthy and sustainable development of coal mines. At present, it is generally accepted that mining a protective layer without the risk of double outburst is a safe and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F7/00
CPCE21F7/00
Inventor 宋卫华赵春阳史苗壮韩彦龙
Owner 中国平煤神马控股集团有限公司
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