• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of applied mathematics >Comparison between Duncan and Chang's EB Model and the Generalized Plasticity Model in the Analysis of a High Earth-Rockfill Dam
【24h】

Comparison between Duncan and Chang's EB Model and the Generalized Plasticity Model in the Analysis of a High Earth-Rockfill Dam

机译：高土石坝分析中邓肯和张的EB模型与广义可塑性模型的比较

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Nonlinear elastic model and elastoplastic model are two main kinds of constitutive models of soil, which are widely used in the numerical analyses of soil structure. In this study, Duncan and Chang's EB model and the generalized plasticity model proposed by Pastor, Zienkiewicz, and Chan was discussed and applied to describe the stress-strain relationship of rockfill materials. The two models were validated using the results of triaxial shear tests under different confining pressures. The comparisons between the fittings of models and test data showed that the modified generalized plasticity model is capable of simulating the mechanical behaviours of rockfill materials. The modified generalized plasticity model was implemented into a finite element code to carry out static analyses of a high earth-rockfill dam in China. Nonlinear elastic analyses were also performed with Duncan and Changs EB model in the same program framework. The comparisons of FEM results and in situ monitoring data showed that the modified PZ-III model can give a better description of deformation of the earth-rockfill dam than Duncan and Chang's EB model.
机译：非线性弹性模型和弹塑性模型是土壤的两种主要本构模型，广泛用于土壤结构的数值分析。在这项研究中，讨论了Duncan和Chang的EB模型以及Pastor，Zienkiewicz和Chan提出的广义可塑性模型，并将其用于描述堆石料的应力-应变关系。使用三轴剪切试验在不同围压下的结果验证了这两个模型。模型拟合和试验数据之间的比较表明，改进的广义塑性模型能够模拟堆石料的力学行为。将改进的广义可塑性模型应用到有限元代码中，对中国的高堆石坝进行静态分析。在同一程序框架中，还使用Duncan和Changs EB模型进行了非线性弹性分析。有限元结果与现场监测数据的比较表明，与邓肯和张的EB模型相比，改进的PZ-III模型可以更好地描述土石坝的变形。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号