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.
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)
关键词
MGO混凝土
拱坝
变形
时效
统计模型
concrete with MgO admixture
arch dam
deformation
time-effect
statistical model
