摘要
景洪水电站大坝为全断面碾压混凝土重力坝,位于澜沧江流域低热河谷区,高温多雨,每年高气温施工时间长达7～8个月,大坝混凝土温度控制要求严格,措施复杂。同时电站工程量大,施工强度高,常态混凝土、碾压混凝土施工及坝内压力钢管安装施工干扰大,施工难度高。文章结合景洪水电站现场施工实际,全面介绍了大坝混凝土施工方案、原材料与混凝土配合比、温控措施、新材料与新工艺。
The dam of Jinghong Hydropower Project, a RCC gravity one at full section, is located in the lower and hot valley of the Lang cangjiang river catchment where the temperature is high and it rains often. The construction period at high temperature each year lasts 7 8 months. Therefore, the temperature of the dam concrete is strictly required to control. Measures for the temperature control are com plicated. Meanwhile, the project work is in a large quantity and the construction strength is high. Construction of normal concrete, RCC and installation of penstocks in the dam are interfered largely. So, the construction difficulties are so high. In the paper, scheme for dam concrete construction, raw materials, concrete mix ratio, temperature control measures, new materials and new technology are totally in troduced in combination of the site construction practice of Jinghong Hydropower Project. The project construction speed is called Jinghong Speed and the project is awarded the First Prizewinning one of Yunnan Province.
出处
《西北水电》
2013年第4期53-58,共6页
Northwest Hydropower
关键词
景洪水电站
左岸大坝
碾压混凝土
高温地区
景洪速度
施工
技术
Jinghong Hydropower Project
dam on left bank
roller compaction concrete
high-temperature region
Jinghong speed
con-struetion
technology
