介绍上海轨道交通2号线西延伸段轨道工程设计中在钢轨扣件、道岔、道床、轨道减振降噪、附属设施,以及在无缝轨道施工等方面开发和应用的一系列新技术、新工艺和新设备,并取得了少维修和减振降噪的实际效果,可为同类轨道工程应用提供参考。 This paper introduces a series of new technologies developed and applied in railroad track fasteners, turnouts, road beds, rail vibration reduction and noise reduction, ancillary facilities, and seamless track construction in the design of rail transit line 2 of the West Extension of Shanghai Metro Line 2. Technology and new equipment, and has achieved the practical effect of less maintenance and vibration reduction and noise reduction, which can provide reference for the application of similar orbital engineering.