Design and Practice of Prefabricated Turnout Bed for Urban Rail Transit
A new type of prefabricated turnout bed was developed on the basis of the existing prefabricated turnout track structure to address the limitations of the existing prefabricated turnout track beds,such as discrete turnout sleepers,cumbersome assembly processes,long construction periods,complex structures,multiple construction processes,and poor universality.The study expounds on the optimized design and research innovation in terms of the plane profile,control dimension,rail bearing platform,limit structure,isolation or damping layer,and reserved interface for the installation of the switch machine.The turnout bed was successfully applied in the second phase of the Chongqing Metro Line 4 project.Compared with the existing prefabricated turnout structures,the new turnout bed demonstrated its production and construction convenience and potential for urban rail transit.
NETL
NSTL
万方数据
维普
