环境温度条件对混凝土坝长期运行的影响  

Impact of environment temperature on long-term operation of concrete dam

作　　者：胡平[1] 杨萍[1] 吴志朋[1] 马晓芳[1] 

机构地区：[1]中国水利水电科学研究院,北京100038

出　　处：《水利水电技术》2012年第9期26-29,共4页Water Resources and Hydropower Engineering

基　　金：国家科技支撑计划项目(2008BAB29B05);国家自然科学基金项目(50909105);水利部行业公益科研专项(200801007)

摘　　要：重点分析了环境温度条件对水电站大坝长期运行的影响,论证了混凝土大坝裂缝的成因,同时阐述了在混凝土大坝的温控设计中,要科学地确定大坝的温度荷载,并通过合理的施工措施,才能有效地预防或限制缺陷产生,保证水电站大坝的长期安全运行。The impact of environment temperature on the long-term operation behavior of concrete dam is emphatically analyzed herein, and then the causation of formation of cracks on concrete dam is demonstrated as well. Simultaneously, it is expatiated that the temperature load must be scientifically determined during the thermal control design of the dam; furthermore, only through reasonable construction measures can the relevant defects be effectively prevented or restricted to ensure the long-term safe operation of concrete dam.

关 键 词：水电站大坝 环境温度 裂缝 温度应力 温度控制 

分 类 号：TV698.23[水利工程—水利水电工程]