预防底板突水的目的含水层水文地质试验研究——鲁中煤田下组煤水文地质补充勘探方法

针对淄博、济东、肥城等华北型石炭二叠系煤田大水矿区原有煤田水文地质勘探阶段资料程度难以满足下组煤带压开采防治水的情况下,选择了预防底板突水中间指示含水层--处于下组煤层与奥灰之间的徐家庄灰岩进行了的采掘前矿井水文地质勘探.充分利用井下巷道,以井下放水试验（包括示踪试验）为主,井上、下结合同步观测,分块（分片、分区）、分层、分阶段及局部、联合放水试验分步骤逐渐暴露水文地质条件,肥城和济东等矿区的实际勘探效果证明针对中间指示含水层进行综合水文地质勘探可达到事半功倍的效果.

Aquifer Hydrogeological Testing Studies Aimed at Floor Water Bursting Prevention

Aimed at there are not enough coal hydrogeological exploration data to design water control during lower coal group mining under safe water pressure of aquifer in North China Permo-Carboniferous coalfields water abundant mining area in Zibo,Jidong and Feicheng,intermediate indicating aquifer-Xujiazhuang limestone between the lower group coals and Ordovician limestone hydrogeological pre-mining exploration on the purpose of floor water bursting preventing is selected.Fully integrated underground-mainly underground dewatering tests(tracer tests included) and surface simultaneous observations,zoned,layered and staged as well as local,combined dewatering testing observations will gradually make hydrogeological condition clearer.Practical exploration facts in Feicheng and Jidong mining areas demonstrated that comprehensive hydrogeological exploration in intermediate indicating aquifer can get twice the result with half the effort.