UHPC加固铁路隧道衬砌结构施工技术  

Construction technology of UHPC reinforced railway tunnel lining structure

作　　者：罗立娜 黄旭炜 罗棋瑜 林灿城 李荣智 LUO Lina;HUANG Xuwei;LUO Qiyu;LIN Cancheng;LI Rongzhi(Guangzhou Railway Polytechnic,Guangzhou 510430,China;Wuyi University,Jiangmen 529020,China;Foshan Metro Operation Co.,Ltd.,Foshan 528010,China)

机构地区：[1]广州铁路职业技术学院,广东广州510430 [2]五邑大学,广东江门529020 [3]佛山市地铁运营有限公司,广东佛山528010

出　　处：《混凝土与水泥制品》2023年第11期73-76,共4页China Concrete and Cement Products

基　　金：广东省普通高校创新团队项目(2022KCXTD052);广州市基础与应用基础研究项目(1175);广州铁路职业技术学院大学生创新创业项目(2021CXCY004)。

摘　　要：针对超高性能混凝土(UHPC)在铁路隧道衬砌加固中的应用,介绍了模板支护现浇法和预制装配式套拱法两种施工方法,并对比分析了两种施工方法的施工工艺流程和施工技术要点。结果表明:模板支护现浇法的适用范围较广,但对施工环境、施工技术要求较高,且工期较长;预制装配式套拱法施工时不受环境影响,工期较短,但成本相对较高。For the application of ultra-high performance concrete(UHPC)in the lining reinforcement of railway tunnels,two construction methods of formwork-supported cast-in-place method and prefabricated supporting arch method are introduced,and the construction process and technical points of the two construction methods are compared and analyzed.The results show that the formwork-supported cast-in-place method has a wider range of application,but it has higher requirements for construction environment and construction technology,and has longer construction period.The prefabricated supporting arch method is not affected by the environment,and the construction period is shorter,but the cost is higher.

关 键 词：铁路隧道 超高性能混凝土(UHPC)加固 施工工艺 模板支护现浇法 预制装配式套拱法 

分 类 号：U457.3[建筑科学—桥梁与隧道工程]