摘要
基于地震波通过结构面时的反射折射理论,探讨位移反射系数与地震波入射角的关系,建立一定条件下边坡稳定性的地震波入射角判据;同时认为,当前常用的莫尔强度准则不适合作为地震荷载作用下岩体破坏的判断依据,并针对地震荷载对莫尔强度准则进行修正.
Based on the refraction and reflection theory of seismic wave through the weak interface, the relation between reflection coefficient and incident angle of earthquake wave is discussed; and the instability criterion of slope affected by incident angle of seismic wave under certain conditions is put forward. It is pointed out that Mohr＇s strength criterion is not suitable for failure criterion of rocks under seismic loading; and the modification of Mohr＇s strength criterion is proposed according to the mechanical properties of seismic loadings.
出处
《三峡大学学报（自然科学版）》
CAS
2009年第2期55-58,共4页
Journal of China Three Gorges University：Natural Sciences
基金
国家重点基础研究973项目(2002CB412703)
关键词
岩质边坡
软弱夹层
结构面
地震荷载
边坡稳定
rock slope
weak sandwich
weak imerface
seismic loading
slope stability
