Deformation Monitoring And Analysis Of Urumqi Kernan Viaduct

Along with the rapid development of transportation enterprise and urbanization,the viaduct in the urban traffic network is more and more highlights its advantages.The Ke-nan viaduct is located in downtown Urumqi,and it is always in the environment that has high population density, heavy traffic flow,strong sunshine,little rain, dry, cold winter and hot summer, big temperature difference between day and night. In this environment, the deformation trend of bridge increases, and it will have difficulty to do the operational phase of the management and maintenance.Based on the above reasons, this thesis carried out the deformation monitoring of the Ke-nan viaduct in Urumqi and analyzed its deformation.In the deformation monitoring technologies and techniques, the author used the Geo-robot and the corresponding monitoring scheme do the deformation monitoring test for the Ke-nan viaduct in Urumqi.This paper presents the deformation monitoring and the basic principles of Geo-robot measuring, systematically summarizes the Geo-robot deformation monitoring approach and its application in bridge engineering.It has verified its feasibility by Geo-robot deformation monitoring test of Ke-nan viaduct in Urumqi. The research has provided a scientific basis for establishing comprehensive safety monitoring system by Geo-robot and other sensors,it is of great theoretical and practical significance.In data processing,this paper focuses on the combination of robust estimation and regression analysis model, and make the further research in the robust estimation of initial iterative and ρ functions.By data simulation, we can have the conclusion that the robustness initial iterative and ρ functions can affect the robustness of robust estimation and choose initial iterative and ρ functions which have high robustness can improve the robustness of robust estimation,through the examples of monitor data verified the validity and reliability of robust regression analysis model which is selected in this article. The robust regression analysis model was applied to thevertical displacement data processing of Urumqi Ker-nan viaduct, the results show that the robust regression model can resist the influence of gross errors, and get correct valuation.While taking advantage of the time series model for horizontal displacement data processing of Ker-nan viaduct,it has also been a good process analysis.Finally,the author gives a brief summary of the article,analyzing deficiencies,and drawing up further research projects.