轨道精调是无砟轨道施工中最关键的一道工序,它对轨道的线型最终位置能否达到设计及验标的要求起着决定性的作用,是决定这个项目成败的关键所在。文章结合作者参与施工的郑州至西安铁路客运专线ZXZQ02标段项目施工为案例,对轨道精调施工工艺技术进行了做了阐述和总结。 Track fine tuning is the most crucial step in the construction of ballastless track. It plays a decisive role in whether the final alignment of the track can meet the requirements of design and verification. It is the key to determine the success or failure of this project. Combined with the construction of ZXZQ02 tendering project of Zhengzhou-Xi’an Railway Passenger Dedicated Line in the construction project, this paper elaborates and summarizes the construction technology of orbit precision adjustment.