河东煤矿一采区底板突水危险性研究

Risk of water inrush from floor of first mining area in Hedong coal mine

为了提高复杂水文地质条件下的煤炭资源利用率,同时提高安全生产的可靠性,必须研究承压水的带压开采过程中的突水危险性,预防透水事故发生。本文研究认为,突水系数小于0.06MPa/m,基本上不存在突水危险,但薄弱层以及软弱夹层可能出现的断裂构造带,可以造成突水危险;当存在奥陶底层时,尤其应当注意突水危险。

In order to improve the utilization ratio of coal resources under complicated hydrogeological conditions and improve the reliability of production safety,the risk of water inrush in confined water mining must be studied.This study suggests that the water inrush coefficient is less than0.06Mpa/m,the water inrush risk basically does not exist,but the fracture zone that may occur in weak layer and weak interlayer,may cause the risk of water inrush;when there is Ordovician bottom,especially should pay attention to the risk of water inrush.