利用差分法计算基于Bishop分析模式的边坡稳定可靠度  

Calculating Reliability of Slope Stability with Difference Method Based on Bishop Analytical Model

作　　者：李俊[1] 彭振斌[1] 周斌[1] 

机构地区：[1]中南大学地学与环境工程学院,湖南长沙410083

出　　处：《矿冶工程》2008年第6期11-14,共4页Mining and Metallurgical Engineering

基　　金：湖南省自然科学基金(07JJ6070)

摘　　要：基于Bishop条分法分析的基本思想,建立了边坡可靠度分析计算模型,并采用差分方法计算功能函数的偏导数,以模拟实际工程中常见的功能函数不能明确的可靠度计算问题。对于功能函数无论是线性或非线性,显式或隐式,该方法都简单且适用。数值结果表明本方法具有较好的效率和精度。Based on Bishop slice method, slope reliability analysis calculation mode is established, and the difference method is adopted to calculate the derivatives of the performance function at the design test point, which can simulate the reliability problems with the closed-formed performance function in actual engineering. So, no matter the performance function is linear or nonlinear, explicit or inexplicit, this method is simple and suitable. The results for reliability index are compared with the other methods and show that this method has good efficiency and accuracy.

关 键 词：边坡可靠度 Bishop条分法 隐式功能函数 差分方法 

分 类 号：TD854[矿业工程—金属矿开采]