塑料排水板处理软土地基设计参数的优化

Optimization about Designing Parameter by Using Plastic Drain Board to Consolidate the Soft-soil Foundation

通过对高速铁路软土路基工后沉降组成的分析,以经济效益为目标函数,软土地基工后沉降、沉降速率双控制指标为约束条件建立优化数值模型.采用遗传算法对塑料排水板处理软土地基的主要设计参数,在总工期一定的情况下进行优化,以获得更好的经济效果.

In this paper, the analysis of components of the settlement of high-speed railway subgrade after construction is given. In the optimization numeric model, the economic utility is adopted as object function, and the double controlling indicators which comprise the settlement after construction and the rate of settlement are employed as the constraint conditions. In order to get better economical result, genetic algorithm under the definite general contraction is used in this paper to optimize the designing parameter of capitalizing the plastic drain board to consolidate the soft-soil foundation.