北京地铁浅埋暗挖双层风道设计

Design of double-layer air conduit with shallow-buried excavation method in Beijing subway

结合工程实例,介绍了双层风道的设计及施工方法,建立荷载—结构模型,使用SAP84程序软件取代框架进行平面计算,提出了设计中应注意的关键点,并利用监控量测获得信息指导施工,及时采取相应措施,确保施工安全。

Combined with practical engineering,the author introduces the design and construction method of double-layer air conduit,establishes load-structure model,carries out plan calculation with SAP84 software instead of framework,proposes the key points should be noticed in the design,and guides the construction by the information gained from monitoring and measurement to adopt relevant measures to ensure construction safety.