摘要
本文以高寒地区某碾压混凝土重力坝为例，采用等效厚度法和三维有限元浮动网格法，分别计算有保温和无保温两种方案，研究表面保温对混凝土温度和温度应力控制的作用。计算结果表明，表面保温对控制混凝土表面温度效果明显。
Taking some RCC gravity dams in the high-cold area as the examples for adopting the equivalent thickness method and the 3-D finite element relocating mesh method, the calcucation was carried out with and without heat insulating respectively, to study the function of the insulating layer of controlling concrete temperature and temperature stress. It was shown by the results of calculation that the insulating layer played a significant role in controlling concrete temperature.
作者
魏婷婷
陈尧隆
陈培培
郭磊
辛杨
WEI Ting-ting, CHEN Yao-long, CHEN Pei-pei, GUO Lei, XIN Yang （1.Facuhy of Water Resources and Hydraulic Power, Xi＇an University of Technology, Xi＇an 710045, China; 2. Northwest Institute Electric Power Design,Xi＇an 710075, China）
关键词
碾压混凝土坝
等效厚度法
三维有限元浮动网格法
表面保温
温度应力
roller concrete dam
equivalent thickness method
3-D finite element relocating mesh method
heat insulating
the temperature stress
