水力发电学报2017，Vol.36Issue(8)：94-103,10.DOI:10.11660/slfdxb.20170811
白鹤滩输水系统进水塔底板混凝土温控特性分析
Analysis on temperature control in construction of intake tower concrete base slabs of Baihetan spillway tunnels
摘要
Abstract
A three-dimensional finite element method was used to simulate the summer season construction process and its temperature control measures of the intake tower base slabs of spillway tunnels at the Baihetan hydropower station.Owning to the lack of parameters for calculating concrete temperature field,a BP neural network method was used for back calculation of the thermal parameters from in-situ measurements.Using the calculations,then we obtained temperature and stress fields of the concrete slabs in different construction conditions through finite element simulation.Influence of different construction procedures on these fields was examined and effective temperature control measures for prevention of concrete cracking can be determined to guide site construction.The results are also useful for improvement of construction quality.关键词
进水塔/参数反演/BP神经网络/有限元计算/温控Key words
intake tower/parameter inversion/BP neural network/finite element calculation/temperature control分类
建筑与水利引用本文复制引用
肖照阳,段亚辉..白鹤滩输水系统进水塔底板混凝土温控特性分析[J].水力发电学报,2017,36(8):94-103,10.基金项目
三峡集团公司重点资助(BHT/0649) （BHT/0649）
中央高校基本科研业务费专项资金 （）
