摘要
城市道路下穿过境高速公路工程对保通及地表沉降的要求高,且施工工法复杂,下穿节点往往成为整个项目成败的关键。目前,针对该类工程的设计与施工尚处于经验累积阶段,需要更多实施案例和理论的支撑。以南京市顺天大街快速化改造二期工程为例,通过经验借鉴、工法比选、数值计算等手段开展了超浅埋斜交条件下浅埋暗挖法和管幕法的适用性探讨,确立了浅埋暗挖法作为本项目的推荐方案,并就施工中面临的关键问题进行了分析。
The project of urban road undercrossing highway has a high demand for traffic smooth and surface settlement,and the construction method is complex,so it often becomes a key link in the success of the entire project. At present,the design and construction of such projects are still in the stage of experience accumulation,more cases and theoretical supports are needed. Taking the second phase of Shuntian street rapid transformation as an example,the applicability of shallow tunneling method and pipe-roof method under shallow and oblique intersection conditions are discussed by means of experience reference,engineering method comparison and numerical calculation,the shallow buried excavation method is established as the recommendation scheme of this project,and the key problems in the construction are also analyzed.
作者
侯立勋
黄俊
张忠宇
陈喜坤
俞蔡城
苏宇宸
HOULixun;HUAEGJun;ZHAEGZhongyu;CHEEXikun;YUCaicheng;SUYuchen(Nanjing Public Project Construction Center,Nanjing 210019,China;JSTI Group,Nanjing 210019,China)
出处
《现代交通技术》
2018年第4期19-24,共6页
Modern Transportation Technology
基金
住建部科技项目(2016-K4-084)
江苏省住建厅科技项目(2016ZD78
2017JH05007
2017ZD134
2017ZD135
2017ZD145)
浙江省公路管理局科技项目(201720)
关键词
市政隧道
高速公路
管幕法
浅埋暗挖法
斜交
超浅埋
municipal tunnel
expressway
pipe-roof method
shallow tunneling method
oblique crossing
ultra shallow buried
