A Study On The Safety Monitoring Hybrid Model Of Xiajiang Hydro Junction Project

Xia Jiang hydro-junction project is a large water conservancy projects with comprehensive benefits,which is one of 172 water supply and saving major water conservancy projects designated by the State Council,and is currently the largest investment of the Gan Jiang controlled water conservancy project.When the project is built,the flood control standard of dykes in downstream Nan Chang and Gan Dong can be improved significantly,and improve upstream shipping channels,and increase irrigation area of 32.95 million hectares,generated energy of 1.142 billion degrees.Protecting the safety of the Xia Jiang water control project has become the primary task of the administration.The establishment of the dam safety monitoring model for the Xia Jiang water conservancy project will help to monitor the working status of the dam and evaluate the safety situation,and provide technical support to ensure the safe operation of the dam.For this purpose,the research of "hybrid model of dam safety monitoring of Xia Jiang hydro-junction project” has been studied in this paper,the main content is as follows:(1)The process chart of dam safety monitoring data of Xia Jiang water control project is drawn.The effects of water pressure,temperature and aging on deformation,seepage and stress of the dams are analyzed;the principle and method of establishing hybrid model are summarized.(2)A series of deformation values of reservoir water level are calculated by finite element method,then the calculated results are used to match the relationship polynomial of reservoir water level and deformation value,and compare with the measured value,determine the adjustment coefficient,and a method for constructing deterministic models of deformed water pressure components is established,the water pressure component is established by finite element,aging component and temperature component,a hybrid model of dam deformation monitoring for Xia Jiang hydro-junction project is established,and the effect of the mixed model is analyzed(3)A series of dam foundation uplift pressure values of reservoir water level are calculated by finite element method,then the calculated results are used to match the relationship polynomial of reservoir water level and uplift pressure value,and a method for constructing deterministic models of vadose water pressure components is established,the water pressure component is established by finite element,aging component and temperature component,a hybrid model of dam seepage monitoring for Xia Jiang hydro-junction project is established,and the effect of the mixed model is analyzed.(4)A series of stress values of reservoir water level are calculated by finite element method,then the calculated results are used to match the relationshippolynomial of reservoir water level and stress value,and compare with the measured value,determine the adjustment coefficient,and a method for constructing deterministic models of the stress of water pressure components is established,the water pressure component is established by finite element,aging component and temperature component,a hybrid model of dam stress monitoring for Xia Jiang hydro-junction project is established,and the effect of the mixed model is analyzed.