高寒地区某RCC重力坝保温措施及效果分析  

Application and Effect Evaluation for the Heat Preservation Measures of a RCC Gravity Dam in Cold Region

作　　者：阮新民 夏世法[2] 鲁一晖[2] 吴燕 刘涛[4] 

机构地区：[1]新疆某流域开发工程建设管理局,乌鲁木齐830000 [2]中国水利水电科学研究院,北京100038 [3]新疆水利水电科学研究院,乌鲁木齐830000 [4]新疆水利水电勘测设计研究院,乌鲁木齐830000

出　　处：《南水北调与水利科技》2009年第3期27-30,共4页South-to-North Water Transfers and Water Science & Technology

基　　金：国家自然科学基金(50679012);"十一五"国家科技支撑计划课题(2006BAB14B05);教育部博士点基金(200801411002)

摘　　要：某RCC重力坝地处高寒地区,又属欧亚大陆腹地,冬季寒冷且历时较长,曾观测到的极端最低气温为-49.8℃,多年平均气温为2.7℃。在本地区修建RCC重力坝,温控设计是关系到大坝建设成败的关键,温度控制必须解决"冷"对大坝温度应力的影响,防止大坝表面裂缝及深层裂缝的出现。现阐述了此RCC重力坝采取的保温温控措施,并根据施工现场实际监测成果对保温措施的效果进行了分析评价,以资类似工程借鉴。A gravity dam is located in the cold region of Eurasia. The winter is long and cold. The minimum temperature observed was -49. 8 degrees, and the average annual temperature is only 2. 7 degrees. The design for temperature control is the key factor to decide the dam construction. To prevent surface or deep cracks the temperature control must decrease the influences of cold. The application of heat preservation measures is summarized, and the effect of these measures is evaluated according to the supervision data on site. So, it can be referred by the similar projects.

关 键 词：高寒地区 RCC重力坝 温度控制 保温效果 

分 类 号：TV315[水利工程—水工结构工程]