摘要
结合昆明某基坑工程支护案例,对放坡支护的剖面进行优化设计。首先结合均匀试验设计和非参数回归分析方法,建立基坑边坡稳定性的响应面,在此基础上,结合边坡稳定性的约束条件,运用枚举法对基坑边坡进行优化设计。优化结果表明:该优化算法适用于基坑边坡开挖级数变化的优化问题,不需求具体解析解且能高效获得全局最优解。在满足边坡稳定性的要求下,优化结果的目标函数值与实际施工方案相比,减少了约4m。
Based on the case of a foundation excavation engineering in Kunming,the optimum design of the profile of the slope supports is designed. Firstly,the response surface of foundation excavation slope stability is established based on uniform experimental design and non parametric regression analysis method. The optimization results show that the optimization algorithm can be applied to the optimization problem of slope excavation of foundation excavation,and the integral optimal solution can be obtained without specific analytical solution. The objective function value of the optimized result is reduced by about 4 meters.
出处
《施工技术》
CAS
北大核心
2015年第21期77-80,共4页
Construction Technology
基金
重庆市教委科学技术研究项目(KJ1401017)
关键词
基坑
边坡
枚举法
响应面
非参数回归
均匀试验
foundation excavation
slope
enumerative algorithm
response surface
nonparametric regression
uniform experiment
