重力式挡土墙截面的优化研究

Study on Optimum Cross-section of Gravity Retaining Wall

以重力式挡土墙截面面积为目标函数,以抗滑移和抗倾覆稳定性、基底应力及相关构造要求为约束条件,建立了其数学模型。借助Matlab的模式搜索工具对挡土墙截面面积进行优化计算,在验证其结果正确的基础上,与已有文献计算结果进行了比较,结果表明,模式搜索算法具有较强的寻优能力,实现了对挡土墙截面的优化计算,优化效果是显著的,可推广应用于工程设计。

Taking the cross-section area of a gravity retaining wall as the objective function,and considering the stability of anti-sliding and anti-overturning, ground base stress, related construction requirement as restraint conditions, the mathematical model was established. Based on the patternsearch tool of Matlab, the section of the retaining wall was optimized, on the basis of verifying the result, by comparing the result with the existing literature, it showed that the optimization capability of pattern search algorithm was great, the optimization for the section of the retaining wall was realized, the effect was significant, so it can be widely applied in engineering.