济南泉域岩溶含水介质发育特征研究  

Karst Development Characteristics of Aquifer Medium in Jinan Spring Area

作　　者：王榕臻 邢立亭 邓兴 于苗 袁学圣 WANG Rongzhen;XING Liting;DENG Xing;YU Miao;YUAN Xuesheng(School of Water Conservancy and Environment,University of Jinan,Jinan 250022,Shandong,China;Society and Law School,Shandong Women’s University,Jinan 250300,Shandong,China;Shandong Fifth Institute of Geology and Mineral Exploration,Shandong Provincial Bureau of Geology and Mineral Pesources,Tai’an 271000,Shandong,China;Key Laboratory of Karst Collapse Prevention and Control,Shandong Provincial Bureau of Geology and Mineral Pesources,Tai’an 271000,Shandong,China)

机构地区：[1]济南大学水利与环境学院,山东济南250022 [2]山东女子学院社会与法学院,山东济南250300 [3]山东省地质矿产勘查开发局山东省第五地质矿产勘查院,山东泰安271000 [4]山东省地质矿产勘查开发局山东省地矿局岩溶塌陷防治重点实验室,山东泰安271000

出　　处：《济南大学学报（自然科学版）》2024年第3期280-287,共8页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金项目(42272288,41772257)。

摘　　要：为了表征和刻画岩溶介质空隙结构的复杂性和非均质性,以济南泉域为例,基于岩心的计算机断层扫描图像、压汞实验结果和节理裂隙测量等数据,采用图像二值化处理、分形维数理论和数理统计方法,识别济南泉域岩溶含水介质结构特征,分析含水介质岩溶发育程度及其影响因素。结果表明:研究区内炒米店组、北庵庄组和三山子组a段为岩溶发育程度相对更好的含水层组;炒米店组优势节理集中,岩溶发育优于马家沟群的;炒米店组与三山子组a段的岩溶连通性更优,储水性更好;北庵庄组、三山子组a段的分形维数均明显大于其他层组的,岩溶发育程度分形指数评价均为非常发育;北庵庄组和炒米店组岩石相对溶解度较高,三山子组a段可溶性矿物含量较多,受水流侵蚀更易发育溶蚀裂隙、溶孔或溶洞。To characterize the complexity and heterogeneity of karst aquifer medium structure,taking Jinan Spring Area as an example,on the basis of the statistical data of rock core computer tomography,high-pressure mercury intrusion experiment,and joint fissure measurement,image binarization processing,fractal dimension theory,and mathematical statistics method were used to identify the structural characteristics of karst aquifer medium,and analyze the karst fractal assessment and its influencing factors.The results show that Chaomidian Formation,Beianzhuang Formation,and Section a of Sanshanzi Formation in the study area are aquifer groups with better karst development.The dominant joints of the Chaomidian Formation are concentrated,and the karst development is better than that of the Majiagou Group.Chaomidian Formation and Section a of Sanshanzi Formation have better karst connectivity and better karst water storage than other formations.The fractal dimensions of Beianzhuang Formation and Sanshanzi Formation are significantly higher than those of other formations,and the index of karst fractal assessment is very developed.The relative solubility of rocks in Beianzhuang Formation and Chaomidian Formation is significantly higher.The content of soluble mineral in Section a of Sanshanzi Formation is more than the others,which is easier to develop corrosion fissure,dissolved pores or karst caves by water erosion.

关 键 词：岩溶发育 含水介质特征 计算机断层扫描 分形理论 济南泉域 

分 类 号：P641.134[天文地球—地质矿产勘探]