天水至平凉线莲花台车站整体道床设计

Design on Monolithic Track Bed of Lianhuatai Station in Tianshui- Pingliang Railway

莲花台车站是天水至平凉铁路线上的一处会让站,车站两端咽喉位于隧道内,中部位于桥上,而隧道内车站道岔区整体道床设计国内尚无工程先例;同时,桥隧过渡段轨道结构及加固处理措施具有一定代表性。本文结合相关规范、新型道岔的研制及工程实际,提出了莲花台车站铺设CRTSⅠ型双块式无砟轨道的设计方案与相应的施工方案。

Lianhuatai station is one passing station in Tianshui-Pingliang railway,both ends of the station are located in the tunnel and the middle part of the station lies on a bridge,and there is no domestic engineering precedent for the monolithic track bed design of station＇s turnout area inside the tunnel. The track structure of bridge and tunnel transition area and reinforcement measures are representative in China. By combing with the relevant specification,newpattern turnout development and engineering practice,the design and corresponding construction scheme for Lianhuatai station which laid CRTS Ⅰ double-block ballastless track were presented in this paper.