高水压大采深矿井突水危险性评价研究

Risk evaluation of water inrush in high pressure and high mining depth mine and research on its control measures

大采深、高水压是我国老矿井的普遍特点,以开滦赵各庄矿为例,其奥灰水压高达12MPa。通过对赵各庄矿充水因素分析,对奥灰底板进行了带压开采评价,提出了加强奥灰含水层和断层防治的具体安全技术对策,为矿井的十四水平安全开采提供了科学依据。

High mining depth and high hydraulic pressure are the characteristics of Chinese old Mines, especially for Kailuan Zhaogezhuang Coal Mine, where the pressure of ordovician karst water is up to 12 MPa. For this reason, it has important meaning to carry out risk evalua- tion of water inrush and research on its control measures. On the basis of the fully analysis on water-filling factors of Zhaogezhuang Coal Mine, mining above aquifer of ordovician karst floor strata was evaluated, and the specific safety countermeasures were proposed to strengthen control on aquifer in ordovician karst and faults, providing a scientific basis for the safe mining on the 14th level.