摘要
针对云冈矿51041掘进工作面在开采过程中巷道顶板出现的渗水、淋水现象,结合工作面实际情况,设计超前探放水方案,确定钻孔参数,分析钻进技术和封孔工艺,并对钻探效果进行分析。实际钻探结果表明,通过超前探放水,在巷道掘进期间未出现顶板淋水和两帮渗水等现象,巷道掘进速率从4.1 m/d提高到8.6 m/d。
Aiming at the phenomenon of water seepage and drenching in the roadway roof of the 51041 heading face in Yungang Mine,combined with the actual situation of the working face,the advanced water exploration and drainage scheme is designed,the drilling parameters are determined,the drilling technology and sealing technology are analyzed,and the drilling effect is analyzed.The actual drilling results show that through advanced water exploration and drainage,there is no roof drenching and two sides water seepage during roadway excavation,and the excavation rate of the roadway is increased from 4.1 m/d to 8.6 m/d.
作者
栗炜
Li Wei(Datong Coal Mine Group Design Research Co.,Ltd.,Shanxi Datong 037000)
出处
《山东煤炭科技》
2021年第5期173-174,177,共3页
Shandong Coal Science and Technology
关键词
超前探放水
水患
钻孔布置
钻探效果
advanced exploration and drainage
flood
drilling layout
drilling effect
