摘要
岩土体为地质灾害的活动主体。地质灾害的孕育、发生和成灾等,都是岩土体的不同活动形式的反映。不同岩土体具有不同的物理、力学及水理性质,其可能产生的地质环境问题也不同。在进行灾害预测评价时,必须充分考虑不同岩土体与地质灾害的关系。
The initiation, development and occurrence of geological hazards are attributed, without exception, to different types of activity of rock masses. The exposed strata in the Luding region, Sichuan may be classified, on the basis of physical properties, hardness and fithology, into three engineering geological rock associations, including friable rocks, semihard-hard rocks and hard rocks. The friable rocks are generally easy to bring about the geological hazards such as landslides, debris flows and unstable slopes. The semihard-hard rocks may be related to the geological hazards such as landslides, rock avalanches and unstable slopes. As the hard rocks, there is no possibility for the acidic rocks to result in the geological hazards; only the intermediately basic to uhrabasic rocks may be responsible for the generation of rock avalanches.
出处
《沉积与特提斯地质》
CAS
CSCD
2010年第1期103-108,共6页
Sedimentary Geology and Tethyan Geology
基金
四川泸定县地质灾害详细调查(编号:1212010640503)
典型泥石流防治关键技术及示范(项目编号:1212010814038)
关键词
岩土体类型
地质灾害
地质环境
rock mass type
geological hazard
geological environment
