2种模型对堆石坝变形分析的对比研究

Comparative Study on Deformation Analysis of Rockfill Dam with Two Models

对堆石坝而言,其变形关系到坝体安全及大坝的运行状态。因此,采用合理的模型,有效地进行数值计算及分析,对堆石坝的设计施工具有重要的工程意义。结合一个具有实测资料的堆石坝,采用广义塑性模型和邓肯张EB模型对大坝进行模拟,对比分析广义塑性模型与邓肯张EB模型计算的坝体变形与实测变形的差异。对比研究表明,广义塑性模型计算结果较邓肯张EB模型更加合理。

For rockfill dam,its deformation is related to dam safety and dam operation state.Therefore,reasonable model and effective numerical calculation and analysis are important for the design and construction of rockfill dam.A combination with the measured data of rockfill dam,using the generalized plastic model and Duncan Chang EB model of dam simulation,comparative analysis of generalized plasticity model and Duncan Chang EB model of dam deformation and deformation of the measured differences.Comparative study shows that the generalized plastic model is more reasonable than Duncan Chang EB model.