水利学报Issue(7)：873-879,7.
基于正交试验法的邓肯-张E-B模型参数敏感性分析研究
The sensitivity analysis of Duncan-Chang E-B model parameters based on the orthogonal test method
摘要
Abstract
Duncan-Chang E-B model can reflect the relationship of stress and deformation of rockfill materi-als under different confining pressures, therefore it has been widely applied in the numerical calculation of stress and deformation of the concrete faced rockfill dam. Based on the orthogonal test method, the con-crete faced rockfill dam is taken as examples in this paper to conduct the sensitivity analysis of Dun-can-Chang E-B model parameters, and study the sensitivity of various parameters to the vertical settlement displacement of the dam and the horizontal displacement of upstream and downstream. The results of the study show that among the Duncan-Chang E-B model parameters,the sensitivity of Kb,φ0 and K are rela-tively large on the vertical displacement of the dam;φ0, K and Rf have a relatively appreciable influence on the horizontal displacement of upstream;Kb,φ0 and K have a relatively great influence on the horizon-tal displacement of downstream;the value of model parameters have the most significant effect on the hori-zontal displacement of upstream;the sensitivity of m,Δφ and n have a relatively small influence on the re-sults of dam deformation. The research methods and results of this paper can provide a reference for select-ing the Duncan-Chang E-B model parameters of concrete faced rockfill dam.关键词
邓肯-张E-B模型/堆石料/正交试验法/敏感性分析Key words
Duncan-Chang E-B model/rockfill materials/the orthogonal test method/sensitivity analysis分类
建筑与水利引用本文复制引用
李炎隆,李守义,丁占峰,涂幸..基于正交试验法的邓肯-张E-B模型参数敏感性分析研究[J].水利学报,2013,(7):873-879,7.基金项目
国家自然科学基金资助项目（51009116）；国家教育部博士点基金项目（20126118120015）；中央财政支持地方高校发展专项资金特色重点学科项目资助（106-5X1205）；陕西省重点学科建设专项资金资助项目 （）
