Author(s)

Jun Gao ^1,2, Juntao Kang ¹, Dongsheng Xu ^1,3, Huiling Xue ¹

Affiliation(s)

¹ School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
² National Railway Group Wu Guang High Railway Company, Wuhan, Hubei, 430212, China
³ Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya, 572024, China

Corresponding Author

Jun Gao

ABSTRACT

Ballastless track plays a crucial role in railway transportation. Traditional construction techniques are difficult to effectively ensure the stability and safety of ballastless track structures, and cannot achieve effective creep control. In order to improve the effect of creep control and enhance the quality of ballastless track laying in cable-stayed bridges, this paper took the ballastless track laying project of a 420m ultra long span high-speed railway cable-stayed bridge as the object, and conducted in-depth research on its creep control and construction technology. This article first analyzed the factors affecting the creep of ballastless tracks, and then, based on this, ensured the stability and creep control of the cable-stayed bridge structure through tension calculation and cable force adjustment. Finally, based on the calculation results, construction optimization was carried out. This article conducted experimental analysis from two levels: structural safety assessment and creep measurement, to confirm its efficacy. The findings demonstrated that over the observation period, the three randomly chosen control locations' average cumulative changes in the horizontal plane coordinates did not surpass 1 millimeter. The article's conclusion suggested that the creep control and construction technology could raise the caliber and standard of rail transportation while also assisting in enhancing the stability and safety of the ballastless track of the 420-meter ultra long span high-speed railway cable-stayed bridge.

KEYWORDS

Cable-stayed Bridge, Ballastless Track, Creep Control and Construction, High-speed Railway, Rail Transit

CITE THIS PAPER

Jun Gao, Juntao Kang, Dongsheng Xu, Huiling Xue, Creep Control and Construction Technology for Laying Ballastless Tracks on a 420m Ultra Long Span High-speed Railway Cable-stayed Bridge. Journal of Civil Engineering and Urban Planning (2023) Vol. 5: 53-59. DOI: http://dx.doi.org/10.23977/jceup.2023.051208.

REFERENCES

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