碾压混凝土拱坝温度场和应力场仿真计算研究  

Simulation and Study on Roller Compacted Concrete Arch Dam Temperature Field and Stress Field

作　　者：薛元琦[1] 张晓飞[2] 白继中[1] 

机构地区：[1]山西水利职业技术学院,山西运城044004 [2]西安理工大学水电学院,陕西西安710048

出　　处：《人民黄河》2014年第1期100-103,106,共5页Yellow River

基　　金：陕西省自然科学基础研究计划项目(2012JQ7008)

摘　　要：采用三维有限元法模拟某碾压混凝土拱坝的施工过程,进行了温控仿真计算,分析了该工程温度场和应力场的分布规律,提出了温控推荐方案。结果表明:采取初期、中期和后期冷却措施后,大坝的最高温度满足碾压混凝土坝设计规范要求,同时也满足封拱灌浆要求,最大温度应力小于混凝土的允许拉应力。It simulated a RCC arch dam construction process, conducted temperature control simulation, analyzed the distribution rule of the tem- perature field and stress field and put forward the recommended scheme of temperature by using three-dimensional finite element method. The re- suits indicate that after the initial, intermediate and late phases of cooling measures, the maximum temperature of the dam meets the RCC dam de- sign specification requirements, but also meet the closure grouting requirements; the maximum temperature stress is less than the allowable tensile stress of the concrete.

关 键 词：三维有限元法 施工过程 仿真计算 封拱灌浆 碾压混凝土拱坝 

分 类 号：TV642.4[水利工程—水利水电工程]