考虑施工期坝面过水条件的面板堆石坝非线性有限元分析  

Non-linear finite element analysis for the overflow condition of CFRD during construction period

作　　者：孙刚锋[1] 付国栋 

机构地区：[1]陕西省泾惠渠管理局水利水电设计院,陕西三原713800 [2]贵州省水利水电工程咨询中心,贵州贵阳550002

出　　处：《水资源与水工程学报》2010年第4期135-138,共4页Journal of Water Resources and Water Engineering

摘　　要：以某已建工程为例,基于非线性邓肯E-B本构模型,建立了可考虑施工期坝面过水条件的面板堆石坝应力变形分析的三维有限元模型,对施工期坝面是否过水两种工况下面板堆石坝竣工期的应力变形进行了对比分析。结果表明:施工期临时断面是否过水对大坝竣工期应力变形的影响较小。因此,对面板堆石坝而言,采用坝面过水度汛方式是安全可行的。Taking one built project as example,the paper established a three-dimensional finite element model for stress and deformation analysis of overflow rock-fill dam during construction period based on the nonlinear Dengken E-B constitutive model and analyzed the stress-deformation of rock-fill dam in completion time under two different conditions （ whether water overflows the dam surface during construction period） .The result indicated that whether water overflows the temporary cross section during construction period has little effect on the stress and deformation of rock-fill dam in completion time.Therefore,it was safe and reliable that water flowed overflow the dam surface of CFRD in flood season.

关 键 词：施工期 坝面过水 竣工期 应力变形 有限元分析 

分 类 号：TV641.43[水利工程—水利水电工程]