南屯煤矿17煤底板奥灰突水危险性综合评价

Comprehensive Evaluation of Ordovician Water Inrush of No.17 Coal Layer Floor in Nantun Coal Mine

针对南屯煤矿17煤开采中可能出现的底板奥灰突水问题,应用模糊-突水系数法和无量纲信息融合法进行综合预测评价。评价结果确定了17煤奥灰含水层突水危险性分区和各影响因素的影响程度。突水危险区主要在矿区的东北部,安全区在矿区的西部边界位置,其余地区为突水较危险区;采深和含水层水压为17煤开采底板突水危险性的主要影响因素。

Pointing to the possibility of water inrush in No. 17 coal floor in Ordovician limestone when mining in nan- tun coal mine, by using the fuzzy - bursting water coefficient law and imensionless information fusion, comprehen- sively prediction and evaluation have been carried out. Risk zoning of Ordovician limestone aquifer water inrush has been classified and the degree of influence factors has been determined. The most dangerous water inrush areas mainly distributed in the northeastern part of coal mine, safe mine, and the rest areas are the more dangerous areas. The factors of the danger of water inrush in the process of No.17 areas mainly distributed in the western boundary of the mining depth and aquifer water pressure are the main coal mining.