人民珠江2025，Vol.46Issue(3)：57-63,7.DOI:10.3969/j.issn.1001-9235.2025.03.008
轴向分区面板坝E-B模型参数敏感性分析
Sensitivity Analysis of E-B model for Axial Zoned Concrete-Faced Rockfill Dam
摘要
Abstract
Axial zoned concrete-faced rockfill dam(CFRD)divides the dam shell along the dam axis.Through the filling of different modulus materials,the three-dimensional deformation of the dam shell can be reduced,and the extruding rupture of high CFRD and even ultra-high CFRD can be improved.Its mechanism and effect are different from those of traditional transverse two-dimensional zoned CFRD.To study the influence of the parameters of the E-B model on the numerical simulation of stress and deformation of the axial zoned CFRD,this paper takes the parameters of the Duncan-Chang E-B model as random variables,takes dam settlement,the deflection of the face slab and axial stress of the face slab as objective functions,and studies the material parameter sensitivity of the axial zoned CFRD through the orthogonal test.The results show that the stress and deformation state is more sensitive to the bulk modulus radix Kb,break ratio Rf,internal friction angle φ0 and the elasticity modulus radix K,and less sensitive to the bulk modulus index m.关键词
轴向分区/混凝土面板堆石坝/正交试验法/敏感性分析/邓肯-张E-B模型Key words
axial partition/concrete-faced rockfill dam/orthogonal test method/sensitivity analysis/Duncan-Chang E-B model分类
水利科学引用本文复制引用
王亚忠,梁勤正,王东,周泽泽,于雨弘,刘湘..轴向分区面板坝E-B模型参数敏感性分析[J].人民珠江,2025,46(3):57-63,7.基金项目
国家重点研发计划资助项目(2018YFC0407103-1) （2018YFC0407103-1）
