摘要
为了防止霍州煤电集团干河煤矿1-230工作面在采掘过程中发生底板涌水事故,根据该工作面具体的地质条件,通过理论分析和数值计算认定工作面回采期间存在突水的危险。针对这一情况,在工作面回采巷道掘进期间采用钻孔超前探测、超前排放的方式治理水害,工作面回采之前对底板奥灰水的赋存情况及隔水层的详细情况进行探查,设计在工作面断层影响区域进行注浆加固,最终有效杜绝了底板奥灰水的威胁。
In order to prevent the occurrence of water inrush from the floor during the mining of the 1-230 working face of the Ganhe Mine of Huozhou Coal and Electricity Group,according to the specific geological conditions of the working face,the risk of water inrush during the mining of the working face was determined through theoretical analysis and numerical calculation.In view of this situation,during the roadway mining of the working face,the method of pre-exploration of drilling and advanced emission were adopted to control the water damage.Before the mining of the working face,the occurrence of the ash water and the details of the aquifer were explored.Grouting reinforcement was carried out on the affected area of the working face fault,which finally effectively eliminated the threat of the bottom ash water.
作者
陈佃华
Chen Dianhua(Sitai Mine,Datong Mining Group,Datong 037003,China)
出处
《煤炭与化工》
CAS
2019年第1期61-64,共4页
Coal and Chemical Industry
关键词
奥灰水
底板突水
断层
注浆加固
limestone water
floor water inrush
fault
grouting reinforcement
