湖南省岳家桥典型岩溶发育区电性特征及构造格架研究
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摘要
为探讨湖南省益阳市岳家桥地质灾害现状,以区内典型岩溶发育区为研究对象,通过长剖面高密度电法、视电阻率联合剖面法等地球物理方法,研究了地层电性响应特点,利用钻孔数据和综合电法勘探数据建立了三维地层结构模型,揭示了典型区域近地表电性结构形态,构建了区内三维地层构造格架,圈定了岩溶发育范围,并评价了地质灾害程度。研究表明:因地制宜地利用综合电法勘探,有助于在我国南方含水较多的岩溶发育区快速、有效地进行灾害范围的圈定和评价。
In order to investigate the current situation of geological disasters in Yue Jiaqiao area in Yiyang City of Hunan Province,the arthors took the typical karst zone here as the research object. The electrical response characteristics of the formation were studied through geophysical methods,such as long-profile high-density electrical method and apparent resistivity combined profile method. A three-dimensional stratigraphic structure model was established by using drilling data and integrated electric survey data. The authors have also revealed the near-surface electrical structure,constructed a three-dimensional stratigraphic framework in this area,delineated the karst range and evaluated the degree of geological disasters. The results show that the integrated electrical prospecting method based on local condition can be useful for quick and effective delineation and evaluation of disaster areas in the karst zones with more water in southern China.
In order to investigate the current situation of geological disasters in Yue Jiaqiao area in Yiyang City of Hunan Province,the arthors took the typical karst zone here as the research object. The electrical response characteristics of the formation were studied through geophysical methods,such as long-profile high-density electrical method and apparent resistivity combined profile method. A three-dimensional stratigraphic structure model was established by using drilling data and integrated electric survey data. The authors have also revealed the near-surface electrical structure,constructed a three-dimensional stratigraphic framework in this area,delineated the karst range and evaluated the degree of geological disasters. The results show that the integrated electrical prospecting method based on local condition can be useful for quick and effective delineation and evaluation of disaster areas in the karst zones with more water in southern China.
引文
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[3]中华人民共和国国务院.国务院关于加强地质灾害防治工作的决定[EB/OL].[2011-06-13].http://www.gov.cn/zwgk/2011-06/17/content_1886569.htm.
[4]吴应科,毕于远,郭纯青.西南岩溶区岩溶基本特征与资源环境、社会、经济综述[J].中国岩溶,1998,17(2):141-150.
[5]湖南省地质调查院.湖南新化-娄底岩溶塌陷1∶5万环境地质调查可行性报告[R].北京:中国地质科学院岩溶地质研究所,2016:1-58.
[6]周锦忠,肖立权.湖南省益阳市赫山区岳家桥地面塌陷地质灾害防治勘查报告[R].株洲:湖南省地质工程勘察院,2012:4-40.
[7]周磊,康方平,邓专.益阳市赫山区岳家桥地面塌陷地质灾害防治勘查物探勘查报告[R].长沙:湖南省地质调查院,2012:16-44.
[8]张西君,李家斌,蒙应华,等.激电法在贵州大厂锑矿勘查中的应用[J].中国地质调查,2018,5(1):16-22.
[9]甄广伟.通过激电异常分析圈定找矿靶区——以承德庞家沟银多金属矿区为例[J].中国地质调查,2017,4(4):26-30.
[10]王金贵,张鑫全,李典,等.综合方法在内蒙古杭盖音浑迪浅覆盖区寻找隐伏矿床中的应用[J].中国地质调查,2016,3(4):69-75.
[11]陈松,余绍文,刘怀庆,等.高密度电法在水文地质调查中的应用研究——以江平圩幅为例[J].地球物理学进展,2017,32(2):849-855.
[12]饶家荣,肖海云,刘耀荣,等.扬子、华夏古板块会聚带在湖南的位置[J].地球物理学报,2012,55(2):484-502.
[13]湖南省地质矿产局.湖南省区域地质志[M].北京:地质出版社,1988:1-121.
[14]李统桂,王新建,刘国才,等.湖南省长株潭地区水文地质工程地质环境地质综合勘查报告[R].长沙:湖南地质矿产局水文地质工程地质一队、二队,1990:81-100.
[15]柳建新,曹创华,郭荣文,等.不同装置下的高密度电法测深试验研究[J].工程勘察,2013(4):85-89.
[16]李金铭.地电场与电法勘探[M].北京:地质出版社,2005:23-45.
[17]中华人民共和国国土资源部.DZ 0238-2004地质灾害分类分级[S].北京:全国国土资源标准化技术委员会,2004:172-179.
[18]湖南省国土资源厅.湖南省重要县城及集镇滑坡崩塌泥石流地质灾害勘查技术要求[S].长沙:湖南省地质环境监测总站,2016:1-79.