摘要
三峡库区某库岸斜坡发生较大规模的滑坡,产生较大社会影响,并受到地质工作者广泛关注。通过分析研究该滑坡破碎岩体宏观与微观特征,提出该岩体为三叠系下统嘉陵江组岩溶角砾岩,多呈散体结构,具完整性、胶结物质、矿物成分、工程性质差异较大的特点,其特征与多期构造作用、岩溶作用及岩性有关。通过分析该岩溶角砾岩成因,认为该滑坡岩溶角砾岩是受溶塌与淋滤共同作用的结果。研究成果可为三峡库区地质灾害防治提供参考依据。
A large-scale landslide occurred on a bank slope which had a large social impact in the Three Gorges Reservoir region,it attracted wide attention from geologists.Through the macroscopic and microscopic characteristics of the fractured rock mass,it is proposed that the rock mass is a karst breccia of the Triassic Jialingjiang Formation,which is mostly granular structure and has the characteristics of integrity,cementation,mineral composition and engineering properties.Its characteristics are related to multi-stage tectonic action,karstification and lithology.By analyzing the causes of the karst breccia,it is considered that the karst breccia of the landslide is the result of the combined action of collapse and leaching,which can provide reference for the prevention and control of geological disasters in the Three Gorges Reservoir area.
作者
高健
陈浩
邱志刚
李冬冬
王寺响
高志林
Gao Jian;Chen Hao;Qiu Zhigang;Li Dongdong;Wang Sixiang;Gao Zhilin(Changjiang Institute of Survey,Planning,Design and Research,Wuhan,Hubei 430010;Wushan Three Gorges Reserooir Ecological Construction Co.,Ltd.,Wushan,Chongqing 404700;Changjiang Geotechnical Engineering Corporation,Wuhan,Hubei 430010)
出处
《资源环境与工程》
2022年第1期43-48,共6页
Resources Environment & Engineering
关键词
滑坡
嘉陵江组
岩溶角砾岩
性状特征
成因分析
三峡库区
landslide
Jialingjiang Formation
karst breccias
property characteristics
causes analysis
Three Gorges Reservoir area
