混凝土坝施工期应变监测资料建模分析  

Model for Strain Monitoring Data of Concrete Dams During Construction Period

作　　者：武先伟[1] 周宜红[1] 黄耀英[1] 周绍武[2] 李金河[2] 陈文夫[2] 

机构地区：[1]三峡大学水利与环境学院,湖北省宜昌市443002 [2]中国长江三峡集团公司,湖北省宜昌市443001

出　　处：《水电自动化与大坝监测》2012年第6期45-47,共3页HYDROPOWER AUTOMATION AND DAM MONITORING

基　　金：国家自然科学基金资助项目(51079079);三峡大学科研启动金资助项目(KJ2010B003)

摘　　要：改进了混凝土大坝施工期应变统计模型,采用3个指数函数累加来表示时效分量,该时效分量表达式可描述任意收敛型的时效分量。对西南地区某建设中混凝土坝的实测应变资料分析结果表明,所提出的改进统计模型拟合精度较高,可用于对施工期的应变资料进行预处理。The statistical model for strain of concrete dams during the construction period is improved. Three cumulative exponential functions are used to represent the time component, and the expression for the time component can describe the time component of any convergence. The modified model is employed to analyze the measured strain data of a concrete dam under construction in southwestern region of China. The results show that the proposed model has high precision, and it can be used for the pretreatment of strain data of concrete dams during the construction period.

关 键 词：混凝土坝 施工期 单轴应变 统计模型 时效分量 

分 类 号：TV642[水利工程—水利水电工程]