大体积混凝土实时温控预报气温选取研究  

Air Temperature Selection for Real Time Temperature Control Forecast of Mass Concrete

作　　者：黄耀英[1] 顾璇 顾以中 周宜红[1] 

机构地区：[1]三峡大学水利与环境学院,湖北宜昌443002 [2]中国葛洲坝集团股份有限公司三峡分公司,湖北宜昌443002 [3]中国葛洲坝集团第二工程公司,湖北宜昌443002

出　　处：《水力发电》2010年第8期48-50,共3页Water Power

基　　金：教育部科学技术研究重点项目(208092);湖北省教育厅科学技术研究项目(Z200713001;D2010207);三峡大学基金项目(2008A007;2008B041)

摘　　要：针对大体积混凝土实时跟踪预报分析时的气温的选取问题,以某混凝土工程为例,对比仿真分析多年月平均气温、日平均气温及日变化气温下的温度场。计算分析结果表明,除了浇筑层表面在层间间歇期间外,其余部位和时间三种气温下的温度均吻合得较好。因此,在进行实时跟踪温控预报时,优先以周天气预报进行仿真分析,在缺少周天气预报时,也可以采用多年月平均气温进行仿真预报。The air temperature selections in real-time forecast of mass concrete temperature were analyzed herein by a case study.The temperature field under the conditions of mean monthly air temperature,mean daily air temperature and air temperature daily variation were simulated respectively.The results show that,in addition to the surface of placing lift during intermittent period,the simulated temperature distributions in other parts and at other times based on three air temperature conditions are consistent with the actual measurements.It is suggested that the weekly air temperature forecast should be given priority in the temperature field simulation for real time temperature control forecast of mass concrete,and the mean monthly air temperature can also be used in the absence of weekly air temperature forecast.

关 键 词：大体积混凝土 实时跟踪 温控 天气预报 月平均气温 Mass Concrete Temperature Control Real Time 仿真分析 日平均气温 混凝土工程 预报分析 温度场 分析结果 仿真预报 日变化 浇筑层 间歇期 问题 时间 

分 类 号：TV73[水利工程—水利水电工程] TM612[电气工程—电力系统及自动化]