基于新型本构模型的胶凝堆石坝多目标优化  

Multi-objective optimization design of cement sand and gravel dam based on a new constitutive model

作　　者：明宇[1,2] 蔡新[1,2,3] 郭兴文[3] 武颖利[4] 杨杰[1,2] 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [2]河海大学水利水电学院,江苏南京210098 [3]河海大学力学与材料学院,江苏南京210098 [4]南京水利科学研究院岩土工程研究所,江苏南京210024

出　　处：《河海大学学报（自然科学版）》2013年第2期156-160,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金(51179061);高等学校博士学科点专项(博士生导师类)(20100094110014)

摘　　要：借助ANSYS有限元软件的二次开发平台和优化设计模块,进行基于新型胶凝堆石料本构模型的胶凝堆石坝结构分析,并采用加权多目标优化的思想,综合考虑胶凝堆石坝的经济性和安全性,选取不同目标权重组合,对该坝型断面进行优化设计研究。结果表明优化坝体断面可保证良好的安全稳定性和经济性,且分析结果符合实际工程的一般规律,可为该坝型的设计提供参考依据。By means of the second-development platform and optimization module in the finite element software ANSYS,structural analysis of a cement sand and gravel（CSG） dam was conducted based on a new constitutive model.The idea of weighted multi-objective optimization,which synthetically considers the economical efficiency and security efficiency,was adopted to conduct research on optimization design of the CSG dam with different weighting coefficient combinations.The results show that the optimized dam sections have a high degree of stability and economical efficiency,and the research results that accorded with general rules of practical engineering can provide references for the design of this dam.

关 键 词：胶凝堆石坝 优化设计 有限元 线性加权法 权重系数 

分 类 号：TV642[水利工程—水利水电工程]