广西贺州市平桂区岩溶发育特征与分布规律
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摘要
探明平桂区岩溶发育特征及其分布规律,对于岩溶地区建设布局,特别是建设场地工程地质勘察具有重要的指导意义。平桂区中北部处于岩溶发育分布区。论文基于前人研究成果,采用资料收集、地面调查、高密度电法及钻探相结合的方法,开展平桂区岩溶地质调查,分析了岩溶发育类型与岩性及岩性组合、埋藏深度及地质构造的关系,揭示了平桂区岩溶发育特征及分布规律。研究表明,平桂区岩溶发育主要以浅表的黄金组、桂林组为主,在褶皱轴部或断层影响带内,在垂直节理裂隙和缓倾斜层面裂隙组成的裂隙系统中,岩溶发育较强;可溶岩与非可溶岩接触地段岩溶发育强;在低平谷地中的分水岭处岩溶发育亦较强烈;在水文网长期摆动的地段地面以上岩溶发育程度强烈。
Understanding karst development characteristics and distribution of Pinggui District has important guiding significance for urban construction layout in karst area, especially the engineering geological investigation of construction site. The north-central Pinggui District is located in the karst development area.Based on the previous research results,the karst geologic survey was carried out in this paper,adopting the method of data collection,ground survey,high-density resistivity and drilling. The relationship between the types of karst development and lithologic combination,burial depth and geological structure is analyzed and the karst development characteristics and distribution in Pinggui District are summarized. The researches show that the karst development in the area is mainly composed of the shallow C_1h and D_3g. The karst is strongly developed in the vertical jointed fracture system,slanted plane,fold axis,fault zone,interface of soluble and insoluble rock,watershed of the low valley zone,and overground with long period swing of hydrologic network.
Understanding karst development characteristics and distribution of Pinggui District has important guiding significance for urban construction layout in karst area, especially the engineering geological investigation of construction site. The north-central Pinggui District is located in the karst development area.Based on the previous research results,the karst geologic survey was carried out in this paper,adopting the method of data collection,ground survey,high-density resistivity and drilling. The relationship between the types of karst development and lithologic combination,burial depth and geological structure is analyzed and the karst development characteristics and distribution in Pinggui District are summarized. The researches show that the karst development in the area is mainly composed of the shallow C_1h and D_3g. The karst is strongly developed in the vertical jointed fracture system,slanted plane,fold axis,fault zone,interface of soluble and insoluble rock,watershed of the low valley zone,and overground with long period swing of hydrologic network.
引文
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[2]张林飞.岩溶地区建设地基处理及基础选型初探[J].科技信息,2007,28:110.ZHANG Linfei. Preliminary study on foundation treatment and foundation selection in karst area[J].Science&Technology Information,2007,28:110.
[3]潘朝铭.贺州市矿产资源开发利用现状与建议[J].南方国土资源,2008(9):20-22.PAN Chaoming. Development and utilization of mineral resources in Hezhou City[J]. Southern Resources,2008(9):20-22.
[4]黄汉.贺州市矿产资源开发存在问题及其对策[J].南方国土资源,2016(4):52-53.HUANG Han. Problems and countermeasures of mineral resources exploitation in Hezhou City[J].Southern Resources,2016(4):52-53.
[5]陈伟海.贺州市的岩溶旅游资源及开发利用[J].广西地质,1996,6(1):12-20.CHEN Weihai. Karst tourism resources and development and utilization in Hezhou City[J].Geology of Guangxi,1996,6(1):12-20.
[6]夏日元,蒋忠诚,邹胜章,等.岩溶地区水文地质环境地质综合调查工程进展[J].中国地质调查,2017,2(4):1-10.XIA Riyuan,JIANG Zhongcheng,ZOU Shengzhang,et al. Progress of hydrogeology and environmental geology comprehensive survey in karst area[J].Jeological Survey of China,2007,2(4):1-10.
[7]罗以达,梁河,高海发,等.城市岩溶地质调查及评价方法探讨——以浙江杭州市为例[J].中国地质,2009,10(36):1187-1193.LUO Yida,LIANG He,GAO Haifa,et al. A tentative discussion on methods for urban karst geological survey and evaluation:a case study of Hangzhou City in Zhejiang Provonce[J]. Geology in China,2009,10(36):1187-1193.
[8]夏日元,邹胜章,唐建生,等.南方岩溶地区1∶5万水文地质环境地质调查技术要点分析[J].中国岩溶,2017,36(10):599-608.XIA Riyuan,ZOU Shengzhang,TANG Jiansheng,et al. Technical key points of 1∶50,000 hydrogeological and environmengtal geology surveys in Karst areas of South China[J]. Carsologica Sinica,2017,36(10):599-608.
[9]缪世贤,黄敬军,武鑫,等.徐州岩溶地质调查及其发育特征分析[J].水文地质工程地质,2017,44(3):172-177.MIAO Shixian,HUANG Jingjun,WU Xin,et al. Karst geological survey and analysis of its development characteristics in Xuzhou[J]. Hydrogeology&Engineering Geology,2017,44(3):172-177.
[10]周立新,时坚. GIS技术在1:5万岩溶水文地质综合调查野外工作中的应用——以湖南新田河流域为例[J].中国岩溶,2009,28(3):268-274.ZHAO Lixin,SHI Jian. Application of GIS to 1:50000 karst hydrogeologic field survey:A case study in Xintian basin,Hunan Province[J]. Carsologica Sinica,2009,28(3):268-274.
[11]刘晓东,张虎生,邢应太.高密度电法在岩溶地质调查中的应用[J].地质与勘探,2003,39(增刊1):65-68.LIU Xiaodong,ZHANG Husheng,XING Yingtai. The application of resistivity imaging to geological survey of karst[J]. Geology and Prospecting,2003,39(S1):65-68.