复合形模拟退火算法及其在水泥土墙优化设计中的应用  

Complex simulated annealing and its application to optimization design of cement-soil retaining walls

作　　者：陈昌富[1] 吴子儒[2] 龚晓南[3] 

机构地区：[1]湖南大学岩土工程研究所,长沙410082 [2]广州市地下铁道设计研究院,广州510100 [3]浙江大学岩土工程研究所,杭州310027

出　　处：《岩土力学》2007年第12期2543-2548,共6页Rock and Soil Mechanics

基　　金：教育部高校博士点基金(No.20050532021);湖南省自然科学基金资助项目(No.03JJY3087)

摘　　要：将传统优化方法中的复合形法和智能优化方法中的模拟退火算法有机结合,得到一种新型的智能计算方法—复合形模拟退火算法。仿真分析表明它比单一的复合形法和模拟退火算法搜索性能更优。按照我国现行规范建立了水泥土墙优化设计数学模型,探讨了提出的复合形模拟退火算法在水泥土墙支护结构参数优化设计中的应用。给出了工程计算实例,其计算结果验证了方法的可行性和可靠性。还讨论了基坑内被动土压力区的加固对水泥土墙的嵌固深度和有效宽度的影响。Complex method （CM） of traditional optimization methods combined with simulated annealing （SA） of intelligent optimization methods; and a new type of intelligent computation method, complex simulated annealing （CSA）, was developed. Simulating analysis results show that the CSA has outstanding advantages in searching performance compared with the complex method or the simulated annealing. In addition, an optimization design model for cement-soil retaining wall （CSRW） was set up according to Chinese design codes; and the CSA was successfully applied to the optimization design of CSRW. Two case studies were given to verify the proposed method. The comparing computation results show that the proposed optimization method is feasible and reliable. Finally, the influence of reinforcement of passive earth pressure area located inside foundation pit on the embedded depth and effective breadth of CSRW was discussed.

关 键 词：基坑 水泥土墙 支护结构 复合形法 模拟退火算法 

分 类 号：TB115[理学—数学]