混凝土坝后期温度时空分布动态预测模型探讨  

Study on Dynamic Prediction Model for Temperature Spatial and Temporal Distribution at Concrete Dam's Later Stage

作　　者：丁月梅[1] 黄耀英[1] 唐腾飞[1] 程中凯[1] 田开平[1] 

机构地区：[1]三峡大学水利与环境学院,湖北宜昌443002

出　　处：《人民黄河》2014年第3期111-112,116,共3页Yellow River

基　　金：国家自然科学基金资助项目(51209124)

摘　　要：施工期混凝土坝的温度场是复杂的非稳定空间温度场,将混凝土坝中后期冷却期间浇筑仓单测点温度动态预测模型推广为混凝土坝后期水管冷却温度时空分布动态预测模型。结合西南某建设中的混凝土坝典型坝段分布式光纤测温数据,对混凝土坝后期水管冷却温度时空分布进行预测,结果表明,基于分布式光纤测温建立混凝土坝后期水管冷却温度时空分布动态预测模型是可行的,可以方便快捷地对未来7 d的温度时空分布状态和垂直向温度分布进行动态预测。As the temperature filed during construction period is a complex and non-stationary space temperature field,then extending the tempera-ture dynamic prediction model of the middle-later cooling period for single point on the casting storehouse to a spatial and temporal distribution dy-namic prediction model during the later pipe cooling period. Combining with the data that came from the distributed fibers of a southwest dam,it predicted the temperature spatial and temporal distribution of pipe cooling at the later stage of the concrete dam. The outcomes show that the tem-perature model based on distributed optical fiber is feasible,and it can conveniently predict temperature’s spatial and temporal distribution and ver-tical temperature distribution in 7 days.

关 键 词：动态预测模型 时空分布 分布式光纤测温 后期水管冷却 混凝土坝 

分 类 号：TV315[水利工程—水工结构工程]