中北大学学报（自然科学版）2018，Vol.39Issue(3)：289-296,8.DOI:10.3969/j.issn.1673-3193.2018.03.009
基于序列二次规划算法的加筋土挡墙布筋方案优化设计
Optimal Design of Geosynthetics-Reinforced Wall Based on Sequential Quadratic Programming Method
摘要
Abstract
Based on laboratory model test,the control variable method was applied to investigate the effect of reinforcement width,length,and horizontal and vertical spacing between reinforcement materi-al on the bearing capacity and stability of the retaining wall.Based on the model test,the sequential quadratic programming (SQP)algorithm was used and the minimum of reinforcement amount was cho-sen as the control target.The constraint condition was chosen without any mode of failure to establish the nonlinear constrained programming mathematical model of optimization design.The optimal solution was obtained using the MATLAB optimization tools and the model test was operated to confirm the va-lidity of the optimal solution.The test results matched the optimized results very well.It is can be drawn out that the bearing capacity and stability of the reinforced retaining wall are not increased linear-ly with the increase of the reinforcement amount.After optimization,the vertical load of the reinforced retaining wall keeps the same while the horizontal load nearly increase 2/5 of the one before optimiza-tion.The total amount of reinforcement decrease 1/4 of the one before optimization.关键词
加筋土挡墙/序列二次规划算法/布筋方案/挡墙稳定性Key words
geosynthetics-reinforced wall/sequential quadratic programming algorithm/arrangement of reinforcement/stability of retaining wall分类
建筑与水利引用本文复制引用
郑利锋,董彦莉,韩云山,张军,王铁..基于序列二次规划算法的加筋土挡墙布筋方案优化设计[J].中北大学学报（自然科学版）,2018,39(3):289-296,8.基金项目
国家自然基金资助项目(51208473) （51208473）
山西省青年科学基金资助项目(2012021019-1) （2012021019-1）
