拱坝大体积混凝土热物理参数的试验研究  

Tests and Study of Arch Dam Mass Concrete Thermophysics Parameters

作　　者：李光伟[1] 杨忠义[1] 覃祥建[1] 李晓勇[1] 

机构地区：[1]中国水电顾问集团成都勘测设计研究院,四川成都610072

出　　处：《水电站设计》2008年第3期15-18,共4页Design of Hydroelectric Power Station

摘　　要：通过测试湿筛混凝土的热物理参数来评价拱坝大体积混凝土的热学特性,必然与大坝实际混凝土存在差异。对拱坝全级配大体积混凝土热物理参数的试验研究结果表明:拱坝全级配大体积混凝土的热物理参数存在着一定的尺寸效应,用湿筛小试件混凝土的热物理参数表征水工全级配大体积混凝土的热学特性显然是不真实的。To assess arch dam mass concrete themophysics properties by testing those of the concrete wet screened specimens the test results are certainly different from the actual parameters of the concrete. Testing the complete grading mass concrete indicates that the thermophysics parameters of arch dam complete grading concrete are with size effect. Obviously, it is untrue to represent these thermal properties of the hydraulic complete grading concrete by use of the thermophysics parameters of the concrete wet screened specimens.

关 键 词：拱坝 大体积砼 热物理参数 砼试验 

分 类 号：TV431[水利工程—水工结构工程]