摘要
由于双鸭山双阳矿煤层直接顶板为巨厚的白垩系砂砾岩含水层,导致预测涌水量较大,无法指导生产实践。通过分析岩性、简易水文观测、测井等资料,对白垩系裂隙含水层进行了进一步分析,并利用双Packer分层抽水系统进行了抽水试验,结合含水层分布和抽水试验结果,对开采4号煤层的涌水量进行精准预测,为煤矿安全回采提供了依据。
Since the immediate roof of coal in the Shuangyang coalmine,Shuangyashan is a huge thick Cretaceous sandy conglomerate aquifer,the original predicted water inflow is quite large caused hard to guide production practices.The paper through analyses of data from lithologic analysis,facile hydrogeological observation,well logging etc have carried out further analysis for Cretaceous fissure aquifer.Using double packers layered pumping system carried out pumping test,combined with aquifer distributions and pumping tested results,precisely predicted water inflow during coal No.4 mining,provided basis for coalmine safe extraction.
作者
程英好
Cheng Yinghao(Hydrogeological Exploration Bureau,CNACG,Handan,Hebei 056004)
出处
《中国煤炭地质》
2020年第S01期16-19,共4页
Coal Geology of China
关键词
巨厚砂砾岩
分段抽水
细化含水层
双Packer分层抽水系统
huge thick sandy conglomerate
layered pumping
refinement of aquifer
double packers layered pumping system
