Study on the Relationship between the Safety Width of the Distress Zone and the Gas Outburst Danger

Jian Ping Wei; Yun Gang Wang; Yan Wei Liu; Deng Ke Wang

doi:10.4028/www.scientific.net/AMR.402.790

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 402Study on the Relationship between the Safety Width...

Study on the Relationship between the Safety Width of the Distress Zone and the Gas Outburst Danger

Abstract:

Having analyze the stress-strain curve of coal containing gas and their failure types, we draw a conclusion that coupling effect between the Ⅱ failure type of the coal containing gas and high-speed gas seepage leads to the occurrence of gas outburst, which provided theoretical basis for the stress distribution characteristics of coal before heading face and preventing the occurrence of sudden gas outburst. The relationship between the safety width of the distressed zone and the gas outburst danger, and the quality relationship between the safety width of the distressed zone and its influence factors as for a colliery, are both discussed. The result is significant to the prediction of gas outburst in the coal tunnel, the reasonable support for the tunnel and the mine gas drainage.

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Periodical:

Advanced Materials Research (Volume 402)

Pages:

790-794

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.402.790

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Online since:

November 2011

Authors:

Jian Ping Wei, Yun Gang Wang, Yan Wei Liu, Deng Ke Wang

Keywords:

Coal Containing Gas, Failure Type, Gas Outburst Danger, Safety Width of Distressed Zone, Stress-Strain Curve

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