中国岩溶2017，Vol.36Issue(6)：859-866,8.DOI:10.11932/karst20170609
安徽省沿江地区典型岩溶塌陷区盖层-岩溶组合特征
Characteristics of caprock-karst combination in typical karst collapse area along the Yangtze River in Anhui Province
摘要
Abstract
Along the Yangtze River area in the Anhui Province (Tongling,Chizhou,Anqing),karst collapse geological disasters are developed.Whether it is to prevent and control geological disasters in karst collapse or to monitor and early predict,it is important to study the geological environment conditions of karst collapse and grasp the engineering geological characteristics of caprock,karst development characteristics of underly-ing carbonate rocks and the relationship between caprock and karst.This paper takes along the Yangtze Riv-er area in the Anhui Province karst collapse as research area.Based on comprehensive collection and collation of investigation and monitoring data of the karst collapses and field investigation in typical karst collapse are-a,the characteristics of caprock engineering geology and underlying carbonate karst were analyzed.Through conceptualization,geological model of the cap rocks together with underlying karst were established.Re-search results shows that there are 7 types of capping layer and karst combinations in the typical karst col-lapse area of which the most vulnerable to karst collapse is the type of the quaternary cover with silty clay and sandy gravel double-layer structure,and underlying medium karstified bedrocks.The mechanism of karst collapse is mainly submersible erosion induced collapse,followed by vacuum erosion induced collapse and vibration collapse.关键词
安徽省/沿江地区/岩溶塌陷/盖层Key words
Anhui Province/along the Yangtze River area/karst collapse/capping layer分类
天文与地球科学引用本文复制引用
汪庆玖,叶小华,孟艨,罗娇,吕传忠..安徽省沿江地区典型岩溶塌陷区盖层-岩溶组合特征[J].中国岩溶,2017,36(6):859-866,8.基金项目
安徽省2013年度国土资源科技项目(2013-K-05)"安徽省沿江地区岩溶塌陷监测预警技术研究" （2013-K-05）
中国地质调查项目(DD20160254) （DD20160254）
