Abstract:Research purposes: The research was done on the significance of turnout stiffness homogenization and the setting method for the stiffness homogenization for high - speed turnouts at home and abroad to contrast the stiffness homogenization methods and results in different countries for evaluating the stiffness homogenization result in China.
Research conclusions: (1 ) The stiffness homogenization in turnout area is particularly important to the regularity, safety, comfortableness and service life of high — speed turnouts. (2) For the France's turnouts, the stiffness homogenization is achieved by increasing the rubber pad stiffness, and this method is simple without using the transition section. (3) For the Germany^ turnouts, the elasticity of the pad is controlled strictly by vulcanization, and both the design and manufacture are complicated. (4)For the China's high - speed turnouts, the turnout is divided into different sections according to different structure, and the stiffness homogenization is achieved by vulcanization. (5) Although the measures taken by the countries are different, but the stiffness homogenization in turnout area are achieved in different countries. (6) The turnout dynamic test and application show the method and measures used for the stiffness homogenization of the high — speed turnout in China are reasonable and feasible.
Chen Xiaoping, Wang Ping, Zhang Yao. The Reasonable Stiffness of Ballastless Track Turnout of 250 km/h Passenger Dedicated Line[ J ] .Journal of Railway Engineering Society, 2010(7) :25 - 28.