有限元应力确定性模型在里石门拱坝中的应用  

Application of FEM Stress Deterministic Model to Lishimen Arch Dam

作　　者：张瑞 蔡爽龙 王浩军 

机构地区：[1]浙江省水利水电勘测设计院,浙江杭州310002

出　　处：《浙江水利科技》2018年第1期26-32,共7页Zhejiang Hydrotechnics

摘　　要：鉴于里石门拱坝的应变计监测数据误差较大,无法建立合理的应力统计模型。通过有限元分析,基于水平位移统计模型分离出来的水压分量位移,反演出大坝溢流坝段和非溢流坝段的弹性模量,并根据反演后的弹性模量计算不同水位和温度下的坝体变形及应力,建立大坝的应力确定性模型,取得了较好的成果。Because the monitoring data of the stress on Lishimen arch dam has considerably large error,it is hard to build a reasonable statistic model based on the monitoring data. Therefore,using analysis software of finite element,based on the elastic modulus reversed from water pressure component,which is separated from the statistic model,then according to the reversed elastic modulus,this paper has calculated the dam stress under different water levels and temperature conditions, and finally,it has built a stress - deterministic model of the dam.

关 键 词：拱坝 安全监测 统计模型 确定性模型 三维有限元 应力分析 

分 类 号：TV642.4[水利工程—水利水电工程]