Hybrid Particle Swarm Optimization Algorithm Used for Design of Soil-Nail Bracing
尤晓 刘大鹏
摘 要:在土层工程地质情况一定的条件下,如何寻找一组最佳设计参数,以达到既经济又安全的目的,是土钉支护设计的一个重要问题.这是一个复杂的优化设计问题.就此,提出基于混合粒子群优化(PSO)算法的基坑土钉支护优化设计方法,以单位长度土钉墙的土钉材料造价作为优化的目标函数.该方法保持了PSO算法结构简单的特点,改善了PSO算法的全局寻优能力,提高了算法的收敛速度和计算精度,不活动粒子的处理使算法避免了"早熟"现象的出现.工程实例计算表明,该方法是进行土钉支护结构优化设计的有效方法.
关键词:粒子群优化;混沌;土钉支护;优化设计
分类号:TU311.4 文献标识码:B
文章编号:0451-0712(2005)06-0076-04
作者单位:尤晓(日韦)(北京交通管理干部学院,北京市,101601)
刘大鹏(北京交通管理干部学院,北京市,101601;华中科技大学,武汉市,430074)
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