窑街三矿矿井水文地质特征及防治措施研究

根据生产实践总结，对窑街三矿矿井危害最大的是位于煤二层上部的第四系砾石层潜水，其次是烧变岩孔隙水与地表塌陷区积水，经多年水文地质资料分析，认为砾石层与地表水大通河水力联系密切，如采用帷幕注浆，打放水孔或泄水巷都不会取得好的效果，切断大通河与砾石层的水力联系，是根治砾石层最有效的方法，故要在充分研究大通河补给范围的情况下有目的地修筑拦河提与地下挡水墙，烧变岩孔隙水已利用打泄水巷，放水孔的方式排完，目前主要是严防地表水重新灌入，对塌陷区复垦，修筑防洪渠是防止大气降水进入塌陷区及防止地表水溃入矿井的有效途径。

Research on mining hydrogeological features and Method of Prevention and Cure in No.3 Mine of Yaojie

Based on the summation of productive practice, showing that seriousest damage to the No.3 mine in Yaojie are phreatic water in gravel bed of Quaternary system located upper part of No.2 coal bed, and the secondary damage are void water of burnt rock, and surface water in subsidence area. Get through analyses on hydrogeological informations, consider that there are close hydraulic connection between gravel bed and Datonghe river of surface water. Applications of curtain grouting and water releasing hole or dewatering tunnel are all no good effects. For bring the gravel bed water under permanent control, must cut out hydraulic connection between Datonghe river and gravel bed, so ought to construct purposefully the dam across the river and underground retaining wall, under the cases fully study the recharge scope of Datonghe river; the void water of burnt rock may be drained with sluicing tunnel and outlet, on the other hand, put on flood control canal, prevent surface water into the mine. These are economical and effective methods bring inundation of mine under permanent control.