Dam Deformation Monitoring Model Construction And Index Formulation Of Zaoshi Water Control Project

Zao water control project is a large(one)water control project with comprehensive benefits.It is one of the key flood control projects in the Yangtze River recently approved by the State Council after the "98 floods".After the completion of Zao water control project,Joint operation with Jiangya and Yichongqiao(proposed)reservoirs.The standard of flood control in Tailu area of Lishui River can be raised from once in 4-7 years to once in 20 years.With the construction of the Three Gorges Reservoir and the construction of Songzi gates,It can be raised to 50 years of once-in-a-flood.It can reduce the flood control pressure in the West Dongting Lake area.Flood control benefits are very significant.Protect the safe operation of Zaoshi Water Conservancy Project.Assess dam safety.To provide technical support for ensuring safe operation of dams.For this reason,This article is in the National Natural Science Foundation Projec "Numerical analysis and safety monitoring method of long-term deformation characteristics of concrete dams"(NO.51769017)The research on the construction of deformation monitoring model and the development of monitoring indicators for the dam of the Zaoshi Water Control Project was carried out.The safety monitoring model of RCC dam section and normal concrete dam section of the water Conservancy project in Zaoshi City was constructed.The main contents are as follows:(1)The effects of water pressure,time limit and temperature on dam deformation are analyzed.This paper explores the principle and method of establishing statistical model.The statistical models of normal concrete dam section and RCC dam section of the water Conservancy project in Zaoshi were constructed.The effect of statistical model is analyzed.(2)Taking into account the material characteristics of the compacted concrete dam,Based on the finite element method to explore the deterministic model expression of hydraulic component,Introduction of weak laminated components of RCC,Based on the construction of statistical models of temperature and aging components,The deformation safety monitoring model of RCC dam section of Zaoshi water Conservancy project is further constructed.(3)Based on the analysis of deformation process and transformation characteristics of concrete gravity dam,To explore the method of formulating safety monitoring criteria for concrete gravity dams,Taking normal concrete dam section and typical RCC dam section as research objects,Based on the typical low probability method,safety monitoring index of concrete gravity dam in soap city is proposed.