岩土力学2025，Vol.46Issue(9)：2703-2710,8.DOI:10.16285/j.rsm.2024.1341
堆石料湿化变形的修正剑桥模型及其参数研究
Modified Cambridge model and its parameters for wetting deformation in rockfill materials
摘要
Abstract
Wetting deformation,one of the primary types of deformation in core wall rockfill dams,significantly affects the stress-deformation behavior of the dam structure and its safety during initial impoundment.To perfect the theory of wetting plasticity,it is essential to develop a plastic model for rockfill wetting deformation.A new plastic model for wetting deformation is proposed in this paper based on the modified Cambridge model and a wetting dilatation equation derived from the wetting strain law.Based on the test data,the parameters are determined and the model is verified.The model's calculation results are in good agreement with the test data,confirming the accuracy and rationality of the modified Cambridge model for rockfill wetting deformation proposed in this paper.Additionally,the variation rules of model parameters under different confining pressures and porosities are analyzed,and calculation methods for each parameter under varying conditions are provided.These findings enhance the plasticity theory of rockfill wetting deformation and provide valuable reference and support for future research in this area.关键词
堆石料/湿化变形/修正剑桥模型/湿化剪胀方程Key words
rockfill material/wetting deformation/modified Cambridge model/wetting dilatancy equation分类
建筑与水利引用本文复制引用
周雄雄,黄佳铄,李若婷,张建余..堆石料湿化变形的修正剑桥模型及其参数研究[J].岩土力学,2025,46(9):2703-2710,8.基金项目
国家自然科学基金青年基金资助项目(No.52209168) （No.52209168）
陕西省博士后科研资助项目(No.2023BSHGZZHQYXMZZ14).This work was supported by the Young scholar Foundation of National Natural Science of China(52209168)and the Postdoctoral Research Project of Shaanxi Province(2023BSHGZZHQYXMZZ14). （No.2023BSHGZZHQYXMZZ14）
