复杂水文地质条件下突水机理研究与危险性评价

Research on water inrush mechanism in complex hydrogeological conditions and risk assessment

张村矿水文地质类型为复杂型,矿井主采二1煤层,目前该矿开采标高为-330^-600 m,水位标高为-320^-470 m,最大带压为1.9 MPa,底板灰岩承压水是威胁矿井目前安全生产的主要灾害之一。经过对矿井区域矿井地质、水文地质、水文地质单元条件及水文钻孔资料进行调查、整理,通过运用突水因素、突导因素及诱突因素对底板承压水突水机理进行分析、研究,对突水危险性进行了分级划分,分别评价并提出了针对性治理方案及措施,为下一步矿井防治水工作指明了方向,确保矿井安全生产。

The hydrological and geologic type of Zhangcun Mine was complex,the mining level were at -330 ^-600 m,the level of water was -320 ^-470 m,the maximum pressure was 1.9 MPa,backplane limestone confined water was a threat to the mine safety in production was one of the main disasters at present.After the investigation and collection of mine area mine geology,hydrogeology,hydrology geological condition of unit and data,through the use of water inrush,to guide and induced process factors,water inrush mechanism of floor confined water was analyzed,the risk classification and evaluation of the water inrush was also carried out respectively,targeted treatment scheme and measures were put forward,thus pointed out the direction of the work for the next step of mine water prevention and control,to ensure the mine safety production.