摘要
我国西北部地区白垩系、第三系红层软岩广泛分布,红层软岩岩体强度低、抗风化能力弱、水敏感性强、工程地质性质较差、滑坡灾害严重.本文在研究红层软岩不同破坏条件下岩体强度特征的基础上,系统分析了红层软岩滑坡的蠕动变形与滑动面形成机制,经对典型滑坡实例统计分析,从定性和定量两方面论述了红层软岩滑坡的运移机制.
Red-mudstone layer landslides of Cretaceous and Tertiary are widely distributed in northwest China. The anti-weathering capability of the red-mudstone layer is relatively weak, its rock mass strength is feeble, and it is very sensitive to water. The engineering geological property of the red-mudstone layer is bad and landslide hazards in this area are numerous. Based on a study of the characteristics of rock mass strength in different failing conditions, this article systemically analyzed the mechanisms of creeping deformation and slip plane formation. The elemental characteristics of red-mudstone layer landslides were discussed in two the aspects of qualitative and quantitative analysis according to the above study and statistic analysis of typical landslide examples.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第3期95-98,共4页
Journal of Lanzhou University(Natural Sciences)
基金
中国国家科学技术委员会攻关项目(CII-CT92-0004)
交通部西部交通建设科技基金资助项目
关键词
红层软岩
滑坡
运移机制
抗剪强度
滑动面
red-mudstone layer
landslide
sliding mechanism
shear strength
slip plane
