高瓦斯工作面顺层抽放钻孔模拟设计与应用

doi:10.11799/ce201411013

Abstract

Abstract:

Gas extraction with bedding holes is applied in 3204 high-gas working face of Zouzhuang coal mine. Gas pressure distribution is simulated under the condition of different distances of the two holes through ANSYS. The results show that: when the distance of the two holes is 3m, it receives the best effect of the gas drainage. With the adoption of the bedding hole, the average gas concentration which extracted by bedding holes is 63.5%, the average gas content in coal seam is 4.63m3/t, the average remnant gas pressure is 0.2MPa. it has achieved a good field application.

Key words: gas extraction, bedding hole, numerical simulation, field application

CLC Number:

TD822

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URL: http://www.coale.com.cn/EN/10.11799/ce201411013

http://www.coale.com.cn/EN/Y2014/V46/I11/39

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Design and the application of the gas extraction with bedding borehole in high-gas face

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