用不平衡推力法快速计算边坡的稳定因数  

Efficient Calculation of Slope Stability Factor with Unbalanced Thrust Force Method

作　　者：孟庆银 

机构地区：[1]齐宏市政工程建设有限公司,黑龙江齐齐哈尔161005

出　　处：《土工基础》2010年第6期53-55,共3页Soil Engineering and Foundation

摘　　要：不平衡推力法是我国广泛应用的一种边坡稳定性分析方法,有隐式稳定系数法和显式稳定因系数法两种。隐式法通常采用试算法或迭代法,计算效率不高。而非线性规划的广义简约梯度法是解决约束最优化问题的最有效算法之一,采用广义简约梯度方法来计算不平衡推力隐式稳定因数,计算过程可在Excel中实现,计算方便、高效,非常适合工程人员使用,值得在工程应用中推广。The unbalanced thrust force method is a widely used slope stability analysis method in China.There are two stability factors：implicit and explicit stability factor.Trial algorithm or iterative algorithm is commonly implemented for solving the implicit stability factor of unbalanced thrust force,but it is quite inefficient.Nonlinear programming technique general reduced gradient method（GRG）is one of the most efficient algorithms for solving constraint optimization problems.GRG method is applied to calculate the implicit safety factor of unbalanced thrust force method.The entire calculation process can be implemented in Excel software.This method is quite convenient and efficient,so that it is very suitable for engineering staff and worth promoting in engineering applications.

关 键 词：边坡 不平衡推力法 稳定因数 非线性规划 广义简约梯度法 

分 类 号：TU457[建筑科学—岩土工程]