温度监测层数对坝体线膨胀系数反演影响  

Effect of Number of Temperature Monitoring Layers on Inversion for Dam Concrete’s Linear Thermal Expansion Coefficient

作　　者：刘杨[1,2] 李含[1,2] 孔令娇[1,2] 

机构地区：[1]河海大学 水文水资源与水利工程科学国家重点实验室,江苏南京210098 [2]河海大学水利水电学院,江苏南京210098

出　　处：《水利与建筑工程学报》2013年第1期7-11,共5页Journal of Water Resources and Architectural Engineering

基　　金：中央高校基本科研业务费专项资金资助(B1020083);河海大学水文水资源与水利工程科学国家重点实验室专项基金(2009586012)

摘　　要：以函数拟合法、温度位移基本原理以及应用相关的数学计算方法进行分析解释坝体混凝土线膨胀系数的调整参数与反演的线膨胀系数出现一定差异呈现一定的规律性并通过实例计算予以验证。得出随着温度监测层数的增多,所反演得出的坝体混凝土线膨胀系数逐渐趋近真值,该结论对坝体材料性态参数的综合分析以及大坝相关方面安全评价具有参考价值。Some analyses are made here with function fitting, basic principles of temperature displacement and relative mathematical calculation method to explain the difference and regularity between the adjusting parameters and inversion results of dam concrete＇ s linear thermal expansion coefficient, and the verification is made with some calculation exam- ples. It is obtained that as the number of temperature monitoring layers increasing, the dam concrete＇ s linear thermal ex- pansion coefficient obtained from inversion would gradually approach to the true value. The conclusion would have high value of reference in the comprehensive analysis for the safety evaluation. condition parameters of dam materials and related aspects of dam

关 键 词：确定性模型 反演分析 温度分量 线膨胀系数 函数拟合 

分 类 号：TV642.3[水利工程—水利水电工程]