RCC重力坝施工期温控防裂研究  

Research on Temperature Control and Crack Prevention of RCC Gravity Dam during Construction

作　　者：李金磊 张建秋 LI Jinlei;ZHANG Jianqiu(College of Civil Engineering and Communication,North China University of Water Resources and Electric Power,Zhengzhou Henan 450045;Yunnan Institude of Water&Hydropower Engineering Investigation Design and Research,Kunming Yunan 650021)

机构地区：[1]华北水利水电大学土木与交通学院,河南郑州450045 [2]云南省水利水电勘测设计研究院,云南昆明650021

出　　处：《河南科技》2021年第22期88-90,共3页Henan Science and Technology

摘　　要：以某碾压混凝土(Roller Compacted Concrete,RCC)重力坝为研究对象,通过编制相应的RCC施工期温度场和应力场仿真计算程序,对RCC重力坝施工期全过程的温度场分布及变化规律进行分析。结果表明,控制浇筑温度后,有效降低了坝体整体温度和坝体混凝土开裂的风险,研究成果可为类似工程的温控设计提供参考。Taking an RCC gravity dam as the research object, by compiling the corresponding RCC construction period temperature field and stress field simulation calculation program, the temperature field distribution and change law during the whole construction period of the RCC gravity dam are analyzed. The results show that after controlling the pouring temperature, the overall temperature of the dam body is effectively reduced, which reduces the risk of concrete cracking in the dam body. The research results can provide a reference for the temperature control design of similar projects.

关 键 词：碾压混凝土(RCC)重力坝 施工期 温度场 控温 

分 类 号：TV642.2[水利工程—水利水电工程]