北京交通大学学报2017，Vol.41Issue(4)：8-16,22,10.DOI:10.11860/j.issn.1673-0291.2017.04.002
大管幕工法地铁车站站型研究
Study on metro station models built by superpipe roof method
摘要
Abstract
The construction procedures,characteristics and applicability for formations of superpipe roof (SPR) method standard model is introduced in this paper.Three development periods of SPR and related several derived station models based on the standard SPR station are described in detail.By establishing 3D SPR structure-load model,the deformation and internal forces of three spans and double columns model(TSDC),two spans and single column model (TSSC),and single span without column in station hall model(SSC) with long-straight-pipes and different secondary lining types built by bottom-up method and top-down method are compared and checking calculated.The results show that the deformation of SPR stations is small,and it has a little influence on the surface and surrounding environment.Since the internal forces of superpipes are relatively small in SPR bearing system,the force bearing of internal-support-beams and interior columns should be emphatically calculated.A station structure with the secondary linings is safer than the not lining one.For avoiding excessive internal forces of substructure under the construction condition,the thickness of secondary linings needs to be optimized.In those metro station models,TSDC built by top-down method is the safest type,followed by TSSC with thin secondary linings,and the structure stress of SSC is the largest.关键词
地下铁路/大管幕/车站站型/结构受力Key words
metro/superpipe roof/station model/structure stress分类
交通工程引用本文复制引用
赵凯,罗富荣,金淮,郝志宏,乔春生,陈晓帆..大管幕工法地铁车站站型研究[J].北京交通大学学报,2017,41(4):8-16,22,10.基金项目
北京市科委项目(Z131100004513009)Project of Ministry of Beijing Municipal Science & Technology Commission(Z131100004513009) （Z131100004513009）
