一种新的边坡反分析方法研究

摘要

Certain strength parameters must be assumed first when back analysis was performed by safety factor.In the present study,the relationship between the ratio of cohesion and internal friction an-gle and the location of slip surface was discussed,the possibility of back analysis through the slip surface depth or maximum depth was proposed.The Bishop method was applied to the slope stability analysis to prove the theory basis,and the limit analysis was also discussed.Finally,the validness of this method was proved by practical engineering.%利用安全系数对边坡进行反分析时，需要对某些强度参数进行假定。从强度折减法出发，讨论了边坡强度参数的比值与滑动面位置的关系，指出由某位置滑动面深度或者最大滑动面深度对边坡强度进行反演的可能性。在利用 Bishop法进行计算后，验证了理论基础，并讨论了极限分析方法在反分析中的应用。最后利用工程实例证明了其有效性。