铁道标准设计2018，Vol.62Issue(2)：144-147,4.DOI:10.13238/j.issn.1004-2954.201609140001
地铁车站单跨PBA工法扣拱施工风险控制研究
Research on Single-span PBA Method and Risk Control in Center Arch Construction of Metro Station
叶新丰 1任雪峰2
作者信息
- 1. 北京市轨道交通建设管理有限公司,北京 100068
- 2. 城市轨道交通全自动运行系统与安全监控北京市重点实验室,北京 100068
- 折叠
摘要
Abstract
Based on the National Art Museum Station constructed with single-span PBA method,numerical calculation and settlement monitoring are conducted to measure the existing risks in single-span PBA construction,and suggestions are provided in respective of design and construct to control the risks in center arch construction.The results of settlement monitoring and numerical calculation show that when the center arc span reaches a certain length,the risks in secondary lining construction are greater than those in main arch excavation,and the greatest in each work process.Optimal center arch node design,dismantling temporary shoring and accelerating secondary lining construction are employed to reduce risks,which may serve as references for engineering in the similar formation and with similar construction method.关键词
地铁车站/单跨PBA工法/扣拱施工/风险控制/数值模拟/地表沉降Key words
Metro station/Single-span PBA method/Center arch construction/Risk control/Numerical simulation/Surface settlement分类
交通工程引用本文复制引用
叶新丰,任雪峰..地铁车站单跨PBA工法扣拱施工风险控制研究[J].铁道标准设计,2018,62(2):144-147,4.
