摘要
从土塑性力学极限分析上限定理出发 ,建立了土坡条分法平移破坏机构。根据外部作用荷载和土体自重所做的外功率与塑性变形区的内部能量耗损率相等的条件 ,建立起虚功率方程 ,并由此得到了土坡稳定系数计算公式。该公式具有概念清楚、使用方便可靠等特点 ,对土坡稳定性分析具有一定实用意义。
Based on the upper bound theorem of soil plasticity mechanics, a slice techniques for analyzing translational failure mechanism of soil slope was put forward. According to the term that the rate of work done by external loads and soil weight is equal to the rate of the energy dissipation in the kinemafically admissible velocity field,the virtual work rate equation was deduced.With the equation,the safety factor of slope stability can be calculated.
出处
《长安大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2002年第4期28-30,42,共4页
Journal of Chang’an University(Natural Science Edition)
关键词
土坡稳定性
塑性极限分析
条分法
机动许可速度场
上限定理
安全系数
soil slope stability
plasticity limit analysis
kinematically admissible velocity field
slice methods
upper bound theorem
safety factor