摘要
针对任意形状的滑裂面,基于摩尔-库伦强度准则计算滑面上的剪应力,进而提出一种新的剪切势能计算方式,改进了基于最小势能原理的均质边坡稳定性分析方法。为验证其合理性和适用性,将其与Bishop法进行对比。结果表明:改进后的最小势能法是可行且合理的,可用于边坡的稳定性评价;滑体中剪切势能对坡体的稳定安全系数有影响,且增大了其稳定安全系数;该方法无需迭代,计算过程简便,便于在工程中推广应用。
In view of arbitrary shape failure surface,shear stress was solved based on Mohr-Coulomb strength criterion. Subsequently,a new method was presented for solving shear potential energy on slip surface,which improved analysis homogeneity method of slope stability based on minimum potential energy principle. The proposed method was compared with Bishop method to valid its rationality and adaptability. The results showed that the improved minimum potential energy method was feasible and rational,which could be used in evaluation of slope stability. Furtherly,shear potential energy of a sliding mass could influence safety factor of slope,which made it increase. The method had no needs for iteration,and it was convenient for population and application in projects.
出处
《工业建筑》
CSCD
北大核心
2016年第3期92-95,共4页
Industrial Construction
基金
国家自然科学基金项目(51304084)
江西省自然科学基金项目(2015BAB206026)
湖南省科技计划项目(2014SK3226)
关键词
滑裂面
剪应力
边坡
最小势能法
slide surface
shear stress
slope
minimum potential energy method
