Key Construction Technology of Non-stop Operation Line Elevated Station Hall Reconstruction and Extension
The contradiction between the scale and facilities of the existing railway station and the actual passenger transport demand is increasingly prominent.This causes a wave of railway station reconstruction and expansion in China.Among them,the reconstruction of the existing railway station and the extension of the elevated station hall is the most complex condition,which brings great challenges to the construction companies.Therefore,based on the reconstruction and extension of the Zhuzhou Station,this paper studies and explores the key construction technologies for the reconstruction and expansion of the elevated station hall on the non-stop operation line.Firstly the characteristics and difficulties of the reconstruction and expansion projects of this type of railway station are analyzed.A large-parallel and small-flow reconstruction and extension mode parallel to the existing platform is proposed,which solves the key problem of synchronous operation between station hall construction and station service.Then the construction technology of steel column near operation line,the modular technology of concrete structure support system covering non-stop operation line and the roof zoning lifting technology of the elevated station hall are proposed,which provides a complete set of technical solutions for the elevated station hall reconstruction and extension.This paper provides reference guides for the construction of similar projects in the future.
reconstruction and extensionelevated station hallmodularizationslidinglifting