CAJ | 학술논문

针对顾桥煤矿进风井井筒揭8煤层时瓦斯抽采困难，易引发煤与瓦斯突出等问题，提出了采用深孔预裂爆破技术增加煤层透气性，缩短瓦斯抽采时间，提高抽采效果，预防煤与瓦斯突出，并在井筒揭煤中进行了现场应用，对应用效果进行了详细分析。实践证明，深孔预裂爆破技术应用在井筒揭煤中行之有效。
침대고교매광진풍정정통게8매층시와사추채곤난，역인발매여와사돌출등문제，제출료채용심공예렬폭파기술증가매층투기성，축단와사추채시간，제고추채효과，예방매여와사돌출，병재정통게매중진행료현장응용，대응용효과진행료상세분석。실천증명，심공예렬폭파기술응용재정통게매중행지유효。
According to the difficulties for gas extraction to sink through No.8 coal seam and easy to priming coal and gas outburst during intake shaft sinking in Guqiao Coal Mine , a method of the deep borehole pre -fracturing blasting was provided to improve the seam permeability , to reduce the time of gas extraction and for the prevention of coal and gas outburst.And the technological process of Deep Borehole Pre -Fracturing Blas-ting was introduced,the application effect was analysed detailedly.It is certified that the application of deep borehole pre-practuring blasting technology to seam opening in mine shaft was effective through practice.