摘要
中国西部山区泥岩地层中修建高速公路,泥岩边坡常发生变形失稳破坏。基于大变形理论,采用完全非线性瞬态动力学分析方法,研究了泥岩边坡开挖前、开挖后暴雨产生孔隙水压力和孔隙水压力消散的时效变形过程,揭示了坡体开挖和孔隙水压力是边坡发生变形破坏的主要因素,为边坡的处治设计提供了理论依据。
In the construction of express highways in mountainous areas in west China,landslide or failure of the mudstone slopes often occur. On the basis of large deformation theory,with the completely nonlinear transient dynamical analysis,the time-dependent deformation process is studied considering pore water pressure produced by downpour before and after excavation and the dissipation of pore pressure. It is revealed that the leading factor affecting slope stability is pore water pressure,which provides a basis for reinforcement measures.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第12期1988-1993,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金(49672166)资助项目。
