水电水利工程大坝混凝土温控技术要点与工程应用  

Key Temperature Control Techniques and Engineering Application for Dam Concrete in Hydropower and Water Conservancy Project

作　　者：刘雨冰 李建华 艾文杰 李旭东 马艺 LIU Yubing;LI Jianhua;AI Wenjie;LI Xudong;MA Yi(Power China Guiyang Engineering Corporation Limited,Guiyang 550081,China;Xizang Datang Zhala Hydropower Development Co.,Ltd.,Changdu 854000,China)

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081 [2]西藏大唐扎拉水电开发有限公司,西藏昌都854000

出　　处：《红水河》2025年第2期8-14,19,共8页

摘　　要：笔者旨在深入探讨水电水利工程大坝混凝土的温度控制技术。通过分析大坝混凝土施工前、施工中和施工后的温控技术要点,结合国内外多个水电水利工程实例,对不同坝型的温控措施进行统计对比。研究发现:混凝土配合比设计主要采用“中(低)热水泥+Ⅰ级粉煤灰+缓凝减水剂”的体系,常态混凝土坝型的浇筑温度和内部温度要求高于碾压混凝土坝型;冷却通水过程中,初期通水控制混凝土最高温度,中期通水控制混凝土内外温差,并设置同冷区降低上下层温差。这些技术措施为工程技术人员提供了有价值的参考,有助于在实际工程中采取有效的温控措施,确保大坝混凝土的质量,保障水电水利工程的安全稳定运行。This study aims to conduct an in-depth exploration of temperature control techniques for dam concrete in hydropower and water conservancy project.By analyzing the key points of temperature control techniques during the pre-construction,construction,and post-construction stages of dam concrete,and combining case studies from multiple domestic and international hydropower projects,this paper statistically compares temperature control measures for different dam types.The research reveals that:The concrete mix design primarily adopts a system of“moderate/low-heat cement+Grade I fly ash+retarding water-reducing agent”;The required pouring temperature and internal temperature for conventional concrete dam types are higher than those for roller-compacted concrete(RCC)dam types;During the cooling water circulation process,initial-stage water cooling controls the maximum concrete temperature,mid-stage water cooling manages the internal-external temperature difference,and a“synchronized cooling zone”is established to reduce interlayer temperature differences between upper and lower layers.These technical measures provide valuable references for engineering technicians,aiding in the implementation of effective temperature control practices in actual projects to ensure dam concrete quality and guarantee the safe and stable operation of hydropower and water conservancy projects.

关 键 词：大坝混凝土温控 施工阶段温控技术 工程案例分析 水电水利工程 混凝土温度控制措施 

分 类 号：TU528[建筑科学—建筑技术科学]