碾压混凝土双曲拱坝通水冷却温控技术研究
Research on Water Cooling Temperature Control Technology for Roller Compacted Concrete Double-curvature Arch Dam
蒙波 1李君2
作者信息
- 1. 陕西水务发展科技集团有限公司,陕西 西安 710000
- 2. 西安升能环保科技有限公司,陕西 西安 710000
- 折叠
摘要
混凝土为热的不良导体,在大体积结构中易因内部水化热量散失不及时而形成较大的内表温差,从而引发温度裂缝,对结构整体性和耐久性造成影响.鉴于此,文章以工程实例为依托,以碾压混凝土双曲拱坝为研究对象,剖析了温控标准通过通水冷却技术的分析和实施,旨在控制混凝土内表温差和温降速率,抑制温度裂缝的出现,提升施工质量.
Abstract
Concrete is a poor conductor of heat.In the large volume structure,it is easy to form a large internal-surface temperature difference due to the untimely dissipation of internal hydration heat,which can cause temperature cracks and affects the integrity and durability of the structure.In view of this,based on the engineering example and taking the roller compacted concrete double-curvature arch dam as the research object,this paper explores the analysis and implementation of temperature control standard through water cooling technology,aiming to control the internal-surface temperature difference and temperature drop rate of the concrete,suppress the occurrence of temperature cracks and improve the construction quality.
关键词
碾压混凝土/双曲拱坝/通水冷却/温控技术Key words
roller compacted concrete/double-curvature arch dam/water cooling/temperature control technology引用本文复制引用
出版年
2024
NETL
NSTL
万方数据