长沙掺MgO拱坝变形监测资料分析  

ANALYSIS OF DEFORMATION MONITORING DATA OF CHANGSHA ARCH DAM WITH MgO ADMIXTURE

作　　者：阳武[1] 陈晓文[1] 伍元[2] 

机构地区：[1]广东省水利水电科学研究院,广东省广州市510610 [2]河海大学水利水电工程学院,江苏省南京市210098

出　　处：《水电自动化与大坝监测》2004年第3期60-61,73,共3页HYDROPOWER AUTOMATION AND DAM MONITORING

基　　金：广东省水利厅基金(2000-21-22-01-05)

摘　　要：通过对外掺MgO混凝土的变形特性研究,建立起适合外掺MgO混凝土拱坝变形时效特性的数学模型,分析了长沙拱坝拱冠205.0m,220.0m,245.0m高程径向位移的变化趋势和主要影响因素。分析结果表明拱冠径向位移主要受温度、上游水位以及时效的影响,且时效尚未稳定。Based on the study of deformation characteristics of the Changsha concrete arch dam with MgO admixture, this paper establishes a mathematical model adaptable to the time-effect of the deformation of concrete dams with MgO admixture. Analyzed are the trend and the main factors influencing the radial displacement of the Changsha arch dam at the elevations of 205.0 m, 220.0 m, and 245.0 m of the arch crown. The results show the radial displacement is influenced mainly by temperature, water level and time-effect, and the time-effect is not stabilized.

关 键 词：MGO混凝土 拱坝 变形 时效 统计模型 

分 类 号：TV698.11[水利工程—水利水电工程]