摘要
金沙江向家坝库区长约410 km的沿江地带,共发育349个变形破坏体(滑坡、崩塌和变形体),总体积31.49亿m^3,其中体积大于1 000万m^3的崩滑体有47个。岸坡变形破坏密度D和模数B分别达0.35个/km和316.95万m^3。对岸坡变形破坏体及其所处的环境特征研究表明,变形破坏体与其所在地层岩性、地质构造、地形条件、岩体结构特征及近期河流地质作用等环境因素共同作用密切有关。系统研究变形破坏体及其与这些环境因素的相互关系,有助于剖析岸坡失稳的成因机制,对岸坡失稳的预测、预防和工程治理具有重要的理论和指导意义。
It has been found that there are 349 landslides, rockfalls and deformed rock masses occurred on the 150 km long valley slopes along Jinshajiang river from Yibin to Baihetan. The total volunle of them is about 31.49×10~8 m^3. The average linear density of deformation and failure is 0.35/kin and average linear modulus of deformation and failure is abut 316.95×10~4m^3km. Through investigation its evident that these landslide, the deformation and failure is correlated with their structural types of bank slopes,...
出处
《地球科学进展》
CAS
CSCD
2004年第S1期211-216,共6页
Advances in Earth Science
关键词
金沙江
岸坡变形破坏
赋存环境
相关性
Jinshajiang river
Deformation and failure of bank slopes
Environmental effect
Pertinence.
