The Technology Standard Research Of Tianjin City Express Railway

At present "Four Vertical and Four Horizontal” high-speed railway network that connecting major city group in our country has been formed.And the railway construction of satellite city or internal group connection in the large city is still in the initial stage.Tianjin is the national integrated transportation hub,and the transportation network between North-South is relatively weak.With the increased importance of integration of Beijing,Tianjin and Hebei and the acceleration of the process urbanization of Tianjin,promoting the accelerated development of regional economy,so it is such an urgent need to speed up the North-South traffic layout and construction.According to the development experience of city railway in the advanced national city and combined with the one hour life circle concept abroad,this paper focus on the main technical standards research of planning regional express railway in Tianjin.(1)Through the selection of line direction scheme and the characteristics analysis of population trip in Tianjin,the prediction result of the passenger flow has been obtained and also the functional orientation is completed.(2)The railway grade and design speed in the main technical standard has been analyzed,and the conclusion of express railway and 200km/h design speed is drawn.(3)And meanwhile the technical standards of minimum plane curve radius and maximum slope are selected and analyzed,finally the main technical standards of the line are completed.This paper takes the urgent project of Jixian to Dagang regional express railway as an example,not only draws the conclusion that the main technical standards of the line,but also reveals the research process and research ideas of it.And it could be used for reference on the construction of the regional express railway in China.