E3S Web Conf.
Volume 218, 20202020 International Symposium on Energy, Environmental Science and Engineering (ISEESE 2020)
|Number of page(s)||4|
|Section||Research on Energy Technology Application and Consumption Structure|
|Published online||11 December 2020|
Gas comprehensive prevention and control technology and practice in outburst mine
School of Energy and Safety, Anhui University of Science and Technology, Huainan 232001; China; State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Huainan 232001; China Coal Technology and Engineering Group Shenyang Research Institute, Fushun, 113122, China; State Key Laboratory of Coal Mine Safety Technology, Fushun, 113122, China
In view of the present situation of gas occurrence in Xiaoxi coal industry, combined with the problems of high gas pressure, high content and complex geological structure in the gas control, the comprehensive gas prevention and control technology to meet the mining connection is proposed.It mainly includes the pre drainage measures of underground kilometer drill hole, through layer drilling and bedding drilling, comprehensive gas prevention technology of surface well pre drainage of coal seam gas and underground cross layer drilling area outburst prevention. The practice shows that after the implementation of comprehensive gas control measures, the residual gas content and gas pressure of coal seam are greatly reduced, and the gas control effect is remarkable. Through the comprehensive gas control technology of outburst mine, the gas control level of Xiaoxi coal industry has been significantly improved, and the number of times of gas overrun has decreased year by year.
© The Authors, published by EDP Sciences, 2020
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