常态混凝土高拱坝温控措施敏感性仿真分析  

Sensitivity simulation analysis of temperature control measure for normal concrete high arc dam

作　　者：凌骐[1] 黄淑萍[1] 张志超[1] 曾为成[1] 

机构地区：[1]河海大学土木工程学院,江苏南京210098

出　　处：《人民长江》2010年第8期67-70,共4页Yangtze River

摘　　要：依据某常态混凝土拱坝的详细施工进度和实际监测资料,采用三维有限单元法对拱坝横缝灌浆前进行了施工期仿真计算。重点讨论了该拱坝分别采用两种不同温控措施后,坝体内温度场和温度徐变应力场的分布情况。通过敏感性分析,比较了两种温控措施的效果及实际作用,所获得的结论对于同类工程的设计和施工有一定的参考价值。By means of three-dimension finite elements method and according to the detailed construction progress and the monitored data of a normal concrete arch dam,simulation analysis for the typical dam monoliths during the construction period is performed.The distribution of internal temperature field and thermal creep stress field of the dam under 2 different temperature control measures are mainly discussed.The actual temperature control effects of two measures are compared based on sensitivity analysis.The conclusions can provide reference for design and construction of similar projects.

关 键 词：敏感性分析 有限元仿真 温控防裂 混凝土温控 拱坝 

分 类 号：TV642.4[水利工程—水利水电工程]