锦屏高拱坝基础约束区混凝土通水冷却效果分析  

Analysis on water cooling effect in foundation constrain zone of high arch dam of Jinping I Hydropower Station

作　　者：燕乔[1] 郜占红 余意[1] 焦艳彬 

机构地区：[1]三峡大学水利与环境学院,湖北宜昌443002

出　　处：《人民长江》2014年第3期58-62,共5页Yangtze River

摘　　要：为了解锦屏一级高拱坝右岸基础约束区混凝土通水冷却的温控效果,分别对一期、中期、二期的通水水温及坝体内部温度监测数据进行了统计分析。结果表明,冷却通水开始时间是温控措施中的一个重要因素,应尽量延长中期冷却通水时间。该工程所选通水冷却方案能有效控制混凝土温升,冷却效果良好。并认为在可能条件下,应该将现场通水温控监测资料作为指导混凝土温度调控的第一手资料,且应加强对智能化、个性化通水冷却措施的研究。For exploring the concrete water cooling law of foundation constrain zone at right bank of high arch dam of Jinping I Hydropower Station, statistical analysis was conducted for pipe cooling water temperature and dam inner temperature measured at water cooling of stage I, mid - stage and stage II. It is concluded that cooling start time is an important factor for temperature control, and the mid - stage cooling duration should be extended as long as possible. The results show that the water cooling scheme adopted for Jinping I project can control the concrete temperature rise effectively. It is suggested that the in - situ cooling temperature data should be treasured as the firsthand data for concrete temperature control, and the research on intelligent and in- dividual water cooling should be strengthened.

关 键 词：基础约束区 通水冷却 混凝土温控 锦屏一级拱坝 

分 类 号：TV523[水利工程—水利水电工程]