摘要
以双圆锥准则为基础,采用解析几何的方法,建议了一种杜拉克-普拉格类屈服准则.利用现有大型有限元程序AN SY S在杜拉克-普拉格屈服准则下,按强度折减系数法求解边坡的安全系数.算例表明,采用所建议的屈服准则求得的安全系数与传统方法所得结果吻合良好,证明了该准则的可行性.
Based on double-conic yield criterion, a Drucker-Prager type yield criterion is proposed by adopting analytic geometry method. Using the existing finite element programs-ANSYS with Drucker-Prager yield criterion to analyze the stability of slopes according to strength reduction technique. Examples show the safety factors obtained by the criterion proposed in this paper are fairly close to the results of conventional methods, thus the reliability of the criterion proposed in this paper is proved.
出处
《广西大学学报（自然科学版）》
CAS
CSCD
2005年第4期275-282,共8页
Journal of Guangxi University（Natural Science Edition）
基金
广西自然科学基金(0339017)
中国博士后研究基金
广西教育厅科研资助项目(桂教科研字2002第316号)
关键词
屈服准则
解析几何
边坡
有限元
强度折减系数法
yield criterion
analytic geometry
slope
finite element
strength reduction technique
