大坝应力应变监测的多因素时变分析模型

基金项目: 国家自然科学基金资助项目(50539010,50579010)，国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电开发联合基金资助项目(50539030-1-3)，国家教育部跨世纪优秀人才培养计划资助项目(2003512643)

详细信息

Time-Varying Model for Dam Stress-Strain Monitoring Data Based on Multiple Factors

¹Northeast Electric Power Design Institute of CPECC,4368 Renmin Street,Changchun 130021,China;²Yangtse River Runway Administrative Office of Nanjing,11 Dama Road,Nanjing 210003,China

Funds: 国家自然科学基金资助项目(50539010,50579010)，国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电开发联合基金资助项目(50539030-1-3)，国家教育部跨世纪优秀人才培养计划资助项目(2003512643)

摘要: 在分析应力应变影响因素及因子模式的基础上,将多层递阶方法与回归分析方法相结合,建立起多因素时变监控模型。将回归系数与影响因子的乘积作为新因子计算时变参数,强化了高相关因子的预报作用,提高了模型的预报效果。
- 水工结构 /
- 时变监控模型 /
- 混凝土坝 /
- 应力应变 /
- 多因素
Abstract: Based on the analysis of the influencing factors and the statistic model of stress-strain,the multiple factors time-varying monitoring model for dam concrete stress-strain is established,in which the multilayer hierarchical and regression analysis methods are combined.Time-varying parameters are calculated based on the new factors which are obtained from the product of the regression coefficients and old factors.In the model,the function of the higher stability correlation factors are strengthened,so as to improve prediction precision of the model.
- hydraulic-structure /
- time-varying model /
- concrete dam /
- stress-strain /
- multiple factors