【作者】 胡再强； 赵凯； 李宏儒；

【Author】 HU Zai-qiang;ZHAO Kai;LI Hong-ru;Xian university of technology;

【机构】 西安理工大学；

【摘要】 现行边坡稳定计算方法,不考虑或很少考虑边坡中的不确定因素,大多只是给出一个安全系数作为是否安全的评判标准。然而理论与实践均证明,影响边坡工程稳定性的诸多因素常常都具有一定的随机性,它们多是具有一定概率分布的随机变量。不考虑这些不确定因素往往会造成一些不必要的损失或浪费,因此有必要对这些不确定性参数进行研究。基于SLOPE/W软件建立极限状态方程,采用蒙特卡洛法进行边坡可靠度分析,研究抽样次数N对可靠度的影响,土性参数分布类型及离散程度对可靠度的影响,抗剪强度指标c,φ的相关性对可靠度的影响,并得到了一些规律性的结论。更多还原

【Abstract】 The present calculation methods of slope stability do not consider or rarely consider the uncertainties in the slope,most of them just give a safety factor as the safety criteria.However,the theory and practice proved that many factors affect the stability of the slope engineering often have a certain randomness.They are usually random variables with a certain probability distribution.Do not consider these uncertain factors often cause unnecessary loss or waste,so it is necessary to study these uncertain parameters.In this paper.we use the SLOPE/W software to establish the limit state equation and use Monte Carlo method to study the slope reliability.We study the relationship between simulation times and reliability;the relationship between soil parameter distribution type with its degree of dispersion and reliability.the relationship between correlation of c、φ and reliability,and we get some regular conclusion.更多还原