分段抽水在水文地质精细勘查中的应用  

Application of segmental pumping in fine hydrogeological investigations

作　　者：程英好[1] Cheng Yinghao(Bureau of Hydrology and Geology,General Administration of Coal Geology of China,Handan 056004,China)

机构地区：[1]中国煤炭地质总局水文地质局,河北邯郸056004

出　　处：《煤炭与化工》2020年第12期44-46,共3页Coal and Chemical Industry

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,导致评估全部为威胁区,预测涌水量较大,无法指导生产实践,引入双Packer分层抽水系统,对白垩系裂隙含水层进行了进一步划分,划分为隔水层、弱含水层和富水性中等含水层3层,并对开采4号煤层的安全性进行了评估、对涌水量进行重新预测,为煤矿安全回采提供了依据。Due to the fact that the direct top plate of the coal seam of Shuangyang Mine is a huge thick water-bearing layer of cretaceous sand and gravel,all of them were evaluated as threat zones,with great possibility of large water,which cannot guide the production practice,double Packer stratified pumping system was introduced,the Cretaceous fractured aquifer was further divided into three layers,which were water-resisting layer,weak aquifer and medium water-rich aquifer.The safety of No.4 coal seam Mining was evaluated and the water inflow was re-predicted,which provided the basis for the safe mining.

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 

分 类 号：TD745[矿业工程—矿井通风与安全]