无锡地区青龙组水文地质条件分析  

Wuxi Area Qinglong Formation Hydrogeological Condition Analysis

作　　者：何邦超 刘军 李亮[2] 田中纺 He Bangchao;Liu Jun;Li Liang;Tian Zhongfang(Jiangsu Changjiang Geological Survey Institute,Nanjing,Jiangsu 210046;Nanjing Center,China Geological Survey,Nanjing,Jiangsu 210016)

机构地区：[1]江苏长江地质勘查院,南京210046 [2]中国地质调查局南京地质调查中心,南京210016

出　　处：《中国煤炭地质》2018年第7期65-67,共3页Coal Geology of China

基　　金：中国地质调查局地质调查项目"苏南现代化示范区1:5万环境地质调查"(DD20160245)

摘　　要：无锡地区地下水条件复杂。为了查明城区地质地层结构、岩溶发育规律及含水层结构、富水性特征等内容,在整理分析以往水文地质资料的基础上,在研究区进行了物探、地质钻探、抽水试验等工作。研究发现:无锡地区三叠系青龙组灰岩埋藏深度10~170m,灰岩厚度大,裂隙较为发育,方解石充填,岩心呈块状、破碎状,局部有溶蚀,岩溶相对发育,富水性较好;两个水文钻孔水量分别达到764.64m3/d和1245.02m3/d,渗透系数分别为0.31 m/d和2.615m/d。Groundwater condition is quite complex in the Wuxi area. To identify the geological and stratigraphic structures, karst devel-opment pattern, aquifer structure and water yield property etc. in the urban area of Wuxi, on the basis of previous hydrogeological data sorting and analysis have carried out geophysical prospecting, geological drilling and pumping test etc. in the study area. The study has shown that the buried depth of Triassic Qinglong Formation limestone in the area is 10 - 170m with large thickness, developed calcite filled fissures; massive or fragmentized rock cores, local dissolution and relatively developed karst and better water yield property. Wa-ter inflow of two hydrogeological boreholes is 764. 64m3/d and 1245. 02m3/d ; permeability coefficient 0. 31m/d and 2. 615m/d respec-tively.

关 键 词：物探资料分析 抽水试验 富水性 

分 类 号：P641.134[天文地球—地质矿产勘探]