二河新闸混凝土施工期的温控与防裂研究  

Study on the Concrete Temperature Control and Crack Prevention during the Construction of the New Erhe Sluice

作　　者：林志祥[1] 朱岳明[1] 刘勇军[1] 徐之青[1] 曹为民[2] 吴健[2] 闪黎[2] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098 [2]淮委治淮工程建设局,安徽蚌埠233001

出　　处：《中国农村水利水电》2005年第2期75-78,共4页China Rural Water and Hydropower

摘　　要：　　经过初步计算、反分析计算和反馈计算对二河新泄洪闸施工期混凝土的温度和应力变化进行了数值仿真分析,并应用于指导施工,最终在水闸施工过程中没有出现肉眼可见裂缝。实践证明,只要施工方法合理,事先进行充分研究工作,完全可以实现不出现肉眼可见裂缝的防裂目标。Numerical simulation and analysis are conducted through preliminary estimate, reverse calculation, and feedback calculation of the concrete temperature and stress during the construction period of the new Erhe Sluice. The results are used to guide the construction, and no crack visible by naked eyes occurs in the construction process. It is proved by the application that as long as the method is rational and the work is studied fully, the goal of prevention of crack visible by naked eyes can be reached.

关 键 词：有限单元法 温度场 裂缝 仿真 反分析计算 

分 类 号：TV332[水利工程—水工结构工程]