高密度电阻率法在雄安新区起步区第四系地质结构精细划分中的应用研究  

Application of high-density resistivity method in fine division of Quaternary geological structure in the starting area of Xiongan New Area

作　　者：郭淑君[1] 于蕾[1] 任政委[1] 王春辉[1] 明圆圆[1] GUO Shu-jun;YU Lei;REN Zheng-wei;WANG Chun-hui;MING Yuan-yuan(Centre for Hydrogeology and Environmental Geology,China Geological Survey,Baoding Hebei 071051,China)

机构地区：[1]中国地质调查局水文地质环境地质调查中心,河北保定071051

出　　处：《华北地质》2021年第1期45-51,共7页North China Geology

基　　金：中国地质调查局项目“雄安新区深部三维地质结构探测(DD20189630)”。

摘　　要：在雄安新区起步区,通过高密度电阻率法对某研究区0~200 m深度工程建设层进行了精细剖面探测,结果表明反演断面图包含了丰富的地质信息,反映了第四系早、中、晚更新统及全新统地层的埋深及起伏形态等地质结构;认为中、晚更新统地层砂层透镜体发育,隐伏地裂缝不发育;结合工程地质钻探和第四纪地质研究,初步建立了0~200 m深度地层岩性格架;验证了高密度电阻率法在雄安新区起步区规划和建设地质勘探中的有效性、可行性,证实了雄安新区起步区作为生态宜居一类地区的重要地位,为雄安新区起步区地下结构“透明化”提供基础地质依据。In the starting area of Xiongan New Area,by application of the high-density resistivity method,the fine profiles detection has been carried out on the engineering construction layers in the depth of 200 meters in certain study area.The results show that the inversion section contains abundant geological information and reflects the geological structure of the early,middle and late Pleistocene and Holocene strata.Sand lens are well developed in middle and late Pleistocene strata,while concealed fractures are not well developed.Based on the results of engineering geological drilling and Quaternary geological research,the stratigraphic and lithologic framework in the depth of 0~200 meters underground is preliminarily established.The results not only verify the validity and feasibility of the high density resistivity method in the geological exploration of the starting area planning and construction of Xiongan New Area,but also prove the importance of the starting area of Xiongan as the first-class ecological habitability.It provides the basic geological evidence for the"transparent Xiongan New Area".

关 键 词：雄安新区起步区 高密度电阻率法 第四系 砂层透镜体 

分 类 号：P631.322[天文地球—地质矿产勘探]