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随着国内高速铁路的建设发展,无砟轨道大量投入营运。受局部沉降、复杂地质、周边环境等多方面因素影响,个别无砟轨道地段出现纵断面线形大值偏差,为确保高速铁路平稳运行,需要对无砟轨道纵断面线形偏差进行调整。在总结某高铁纵断面线形调整技术和施工实践的基础上,提出运营条件下CRTSⅠ型无砟轨道纵断面线形偏差整治技术,为高速铁路无砟轨道养修提供参考。
With the construction and development of domestic high-speed railway, a large number of ballastless orbits are put into operation. Affected by many factors such as partial settlement, complex geology and surrounding environment, large linear deviation of longitudinal profile occurs in some ballastless track sections. To ensure the smooth operation of high-speed railway, the alignment deviation of the longitudinal section of ballastless track needs to be adjusted. On the basis of summarizing the linear adjustment technology and construction practice of a certain high-speed railway profile, this paper proposes the remediation technology of linear deviation of longitudinal section of CRTS Ⅰ ballastless track under operating conditions, which provides a reference for the maintenance of ballastless track of high-speed railway.