摘要
针对顺层边坡岩体结构变形的特点,利用后屈曲能量准则建立了平衡稳定模态幅值方程,给出了平衡分叉点附近的邻域及边坡坡脚剪切滑动的判据。根据岩体边坡渐近性破坏的机理和流变变形的特征,分析了可能影响模态幅值的各种因素,给出了以坡长为控制变量的平衡稳定模态幅值的极值。
According to deformed specificities for rock mass bedding slope, the mode amplitude equation of equilibrium stability built by energy criterion of post-buckling are used, and nearby region at bifurcation point and cracking criterion at bedding slope end are derived. In accordance with mechanism for progressive failure of rock mass bedding slope and characteristic for rheologic deformation, various possible factors affected mode amplitude are analysed; and extremum of mode amplitude of equilibrium stability is given in the form of slope length.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2003年第5期764-766,770,共4页
Rock and Soil Mechanics
基金
陕西省自然科学基金资助项目(No. 2001SL11)
关键词
顺层边坡
后屈曲
分叉点
模态幅值
bedding rock slope
post-buckling
bifurcation point
mode amplitude
