湖北武汉典型地区岩溶发育特征分析

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英文篇名：Analysis on characteristics of karst development in Wuhan of Hubei Province 作者：李慧娟 ; 金小刚 ; 涂婧 ; 魏瑞均 ; 李海涛 ; 杨涛 英文作者：LI Huijuan;JIN Xiaogang;TU Jing;WEI Ruijun;LI Haitao;YANG Tao;Geological Environment Center of Hubei Province;Beijing Sumavision Inc.;Hua-Di Construction Engineering Co.,Ltd.in Sichuan;China Institute of Geo-Environmental Monitoring; 关键词：岩溶塌陷灾害 ; 岩溶发育 ; 碳酸盐岩条带 ; 特征分析 ; 线岩溶率 英文关键词：karst surface collapse disaster;;karst collapse;;carbonate rock belt;;characteristic analysis;;linear karst rate 中文刊名：中国地质灾害与防治学报 英文刊名：The Chinese Journal of Geological Hazard and Control 机构：湖北省地质环境总站;北京数码视讯科技股份有限公司;四川省华地建设工程有限责任公司;中国地质环境监测院; 出版日期：2019-08-15 出版单位：中国地质灾害与防治学报 年：2019 期：04 基金：中国地质调查局矿评项目(1212011220189) 语种：中文; 页：44-51 页数：8 CN：11-2852/P ISSN：1003-8035 分类号：P642.252

摘要

本文在分析以往地质资料和完成的武汉市1∶5万岩溶塌陷调查成果的基础上,从武汉市岩溶发育的形态及规模、不同岩溶条带、不同构造条件、不同地层、不同埋深和不同地貌七个方面,分别系统总结了武汉市典型地区岩溶发育的特征。区内岩溶总体中等发育,岩溶形态主要为溶隙、溶孔以及小规模溶洞;在水平方向上存在5个走向NWW—SEE、各自相对独立的碳酸盐岩条带,其中白沙洲条带岩溶最为发育,在垂直方向上浅层溶蚀发育;各地层的岩溶发育强度依次为P2q> T1d> C2h+d> T1-2j;在褶皱核部或转折端、断层带附近、长江一级阶地、山前补给局部地区等地下水交替循环强烈地带和可溶岩与非可溶岩接触带,岩溶发育相对强烈。结论可为武汉市岩溶塌陷地质灾害防治提供地质基础支撑。
        On the basis of analyzing the previous geological data including the results from 1∶ 50 000 survey on the karst collapse of Wuhan City,the present paper systematically summarizes the characteristics of karst development at typical areas of Wuhan City in perspectives of seven aspects,including the shape and size of karst development,karst belts,tectonic conditions,strata,burial depth and geomorphology. The results indicate that the karst development is generally moderate,and karst morphology are mainly karst fissure,karst pore and small-size karst cave. There are five NWW-SEE and relatively independent carbonate rock belts in the horizontal direction,among which the karst is the most developed for Baishazhou belt,whereas the shallow corrosion is developed in the vertical direction. The karst development levels for various strata are in order of P2 q,T1 d,C2 h + d and T1-2 j. In general,karst is relatively more developed in two types of zones. One is the active zone of groundwater cycle including the cores or hinge zone of folds,the vicinity of fault zone,the first terrace of Yangtze River and piedmont recharge area,and another is the contact zone between dissoluble rock and insoluble rock. The conclusions of this paper can provide basic supporting geological information for the control on the karst collapse hazards in Wuhan.

引文

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