上覆含水流砂层下安全采煤技术

Safety Coal Mining Technology under Overlying Water-bearing Quicksand Stratum

含水流砂层下煤炭资源的开采是个工程难题,方法不当就可能引发淹井事故。对白音查干煤矿矿井水文地质特征进行了分析,认为对矿井开采构成威胁的水体为第四系流砂含水层。根据井田的水文地质特征和矿井涌水量预计,建议采取地面和井下联合疏放水措施,以保证煤炭的安全开采。

It is an engineering problem for coal resources mining under water - bearing quicksand stratum. Submergence accident will be caused by improper method. The water, quaternary quicksand aquifer, is considered to pose a threat to the mine mining by analy- zing the hydrogeology characteristics of Baiyinchagan coal mine. According to the hydrogeology characteristics and the mine discharge prediction of this field, drainage measures of combining surface and underground were taken to ensure the safety of coal mining.