摘要
在条件并层,分区异步长等仿真分析理论基础上,进一步研究了单元形状与单元划分问题、混凝土温度特性参数合理描述及取值问题、边界初始温度的确定问题等.基于前述研究理论,开发编制了碾压混凝土温度场仿真计算程序CONTEP,利用该程序成功地对三峡工程RCC围堰施工期温度场进行了仿真分析,仿真计算结果揭示了RCC围堰施工期温度的变化规律,从而为设计合理的温控措施提供参考.
Based on the simulation algorithms on the conditionally merging layers and the different time steps for the different zones, some of problems such as element meshes, the shape of element, the description of the thermal characteristic parameters of concrete, the initial temperature of the boundaries are further studied herein, and then a finite element program CONTEP is developed to analyze the temperature field of the RCC dams. Furthermore, the program is applied to simulate the temperature field of the RCC cofferdam for the Three Gorges Project during its construction period. The results show the characteristics of the temperature of the RCC cofferdam during construction period and provide the references for the cofferdam construction and the design of the temperature control measures as well.
出处
《水利水电技术》
CSCD
北大核心
2005年第5期56-58,共3页
Water Resources and Hydropower Engineering
关键词
三峡工程
碾压混凝土围堰
有限元
温度场
Three Gorges Project
RCC cofferdam
finite element
temperature field
