青东矿10煤层水文地质特征及充水因素分析

为了评价10煤层开采可能产生的水害影响,根据矿井含、隔水层的水文地质特征,指出10煤层受采动破坏,顶底板砂岩裂隙水、太原组和奥陶系岩溶水沿采动裂隙和断层溃入矿井,对矿井开采形成威胁。根据对矿井充水因素的分析,得出矿井的充水强度不大,充水通道主要为隔水层薄弱地段采动裂隙和断层破碎带。

Analysis of Hydrogeological Characteristics and Water-filling Factors of No.10 Coal Seam in Qingdong Coal Mine

In order to evaluate possible water hazard of No.10 coal seam mining,on the basis of analysis of Hydrological characteristics of aquifer and water-resisting layers,it’s pointed out that No.10 coal seam will be damaged by mining,resulting in crevice water in roof and floor sandstone,water in Taiyuan Formation and the Ordovician karst inflowing into the mine along the mining fissures and faults,which creates threat to underground mining.Analysis of mine water filling factors showed that mine water-filling intensity is small,mining-induced fissures and fault fracture zone in the aquiclude weak lots form water-filling channel.