新大地矿奥灰水带压工作面回采安全技术评价

Safe mining technology of Ordovician water with pressure working face recovering in Xindadi Mine

新大地矿15302工作面处于奥灰水带压区,随着煤矿开采深度的不断增加,奥灰水水压会不断增大,给煤层的回采带来很大的突水隐患。对该工作面进行带压开采安全性预评估,采用煤矿井下综合物探技术,结合对巷道、工作面专项钻探、巷探的验证,探明工作面内各种地质构造及水文异常体的赋存情况,排除带压开采工作面水害安全隐患,保障安全生产。

15302 working face of Xindadi Mine locates in Ordovician water with pressure,with the increasing depth of mining,the Ordovician water pressure increased,with the water burst hazard,the safe mining evaluation of the working face mining with pressure was conducted,based on underground comprehensive geophysical exploration technology,combined with the geological condition on site,the geological structures and hydrological anomalies were explored,removing the water hazard in mining,the safe mining was ensured.