Comprehensive anti-outburst method of great buried depth gently inclined coal bed area

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...

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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