赵家寨煤矿二_1煤层底板承压水水源补给规律研究

Study on Supply Laws of Floor Pressurized Water in Ⅱ_1 Coal Seam of Zhaojiazhai Mine

为了消除煤层底板承压水的威胁,结合新密煤田赵家寨煤矿底板含水层和隔水层情况、水文地质动态观测网台账以及区域构造发育规律,分析了二1煤层底板各含水层水位及水压的变化规律,找出了底板承压水的补给来源和导水通道,确定了区域水源的补给规律,最终得出了赵家寨煤矿底板承压水水源补给呈现以"构造补给为主、灰岩隐伏露头补给为辅、多种补给方式并存"的规律。

To eliminate the threat of floor pressurized water in coal seam,combined with the conditions of the aquifers and aquiclude in coal seam bottom layers,accounting of dynamic hydrological observation network and rules of regional tectonic development in Xinmi coalfield of Zhaojiazhai Mine,this paper analyzed the changing laws of water pressure and water level of floor aquifers in Ⅱ 1 coal seam,the floor pressurized water supply source and the water channel were also found out,the laws of the regional water supply were determined,too.Eventually,the supply laws of floor pressurized water in Zhaojiazhai Mine were concluded,that is,structure supply occupies the leading status,supply for limestone concealed outcrop comes next,and varies of supply modes are coexisting.