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Gas comprehensive prevention and control technology and practice in outburst mine

机译：天然气综合防治技术与爆发矿井实践

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摘要

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.
机译：鉴于潇洒煤炭行业的燃气发生现状，结合气压，高含量和气体控制地质结构的问题，提出了综合气体防范和控制技术，以满足采矿连接。主要包括地下公里钻孔的预排水措施，通过层钻孔和床上用品钻孔，综合气体预防煤层气和地下横梁钻井区突出预防突出的煤层气预防。该实践表明，在实施综合气体控制措施后，煤层的剩余气体含量和气压大大降低，气体控制效果显着。通过爆炸矿井综合气体控制技术，萧宋煤炭工业的气体控制水平得到了显着改善，燃气超支次数逐年减少。

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