摘要
将边坡稳定性分析的有限元法和极限平衡法相结合,首先对边坡进行有限元分析,分析边坡应力、应变和位移分布,然后利用有限元分析计算的应力结果,通过应力张量变换,求出条分底部的应力,并根据极限平衡法的概念得出边坡的稳定性安全系数。该方法既能反映边坡的稳定和变形之间的关系,又能用工程界所熟悉的安全系数来评价边坡的稳定性,具有较广泛的应用前景。
A method combining the elastoplastic finite element method （FEM） with the limit equilibrium method is proposed to analyze the slope stability problems. The stress, strain and displacement distributions of the slope are calculated by elastoplastic FEM. Then, the stability factor of safety of the slope is calculated with method of slices based on limit equilibrium in which the finite dement computed stresses are used to compute the normal stress and the mobilized shear stress at the base center of each slice. The proposed method can not only consider the influence of the deformation of the slope on the stability, but also evaluate the stability of the slope with single stability factor of safety which is well known in geotechnical engineering. The proposed method will have broad application to the slope stability analysis.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第A02期5355-5359,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
岩土力学
边坡稳定性分析
有限元法
极限平衡法
稳定性安全系数
rock and soil mechanics
slope stability analysis
finite element method（FEM）
limit equilibriummethod
stability factor of safety
