摘要
14308工作面回采过程中出现涌水,且水量较大。采用数值模拟研究分析工作面水害分布情况,地球物理探测技术进行水情探测,钻探验证,并对涌水量进行了定量分析,确定积水区域为14308运输顺槽一侧前方100 m范围。使用注浆技术对上方采空积水区域进行阻隔封堵,封堵长度88m,注浆量10 000 m~3。通过注浆有效阻隔了积水区域,涌水量由360 m~3/h降至33 m~3/h。研究结果真实可靠,具有一定推广意义和现实意义。
During the recovery process of the 14308 working face,water gushing occurred,and the water volume was large.Numerical simulation was used to analyze the distribution of water hazards on the working face.Geophysical detection technology was used to detect water regimes,drilling verification,and quantitative analysis of water inflow.The grouting technology is used to block and block the goaf water area above,with a plugging length of 88m and a grouting volume of 10000m~3.Through grouting,the water accumulation area is effectively blocked,and the water inflow is reduced from 360m~3/h to 33m~3/h.The research results are true and reliable,and have certain promotion and practical significance.
作者
闫志强
YAN Zhiqiang(Xishan Coal and Electricity Group Xiqu Mine,Taiyuan 030200,China)
出处
《煤矿现代化》
2022年第5期57-61,共5页
Coal Mine Modernization
关键词
涌水异常
物探技术
钻探技术
注浆技术
water gushing anomaly
geophysical prospecting technology
drilling technology
grouting technology
