北京交通大学学报2013，Vol.37Issue(1)：34-39,6.
PBA法扩挖大直径盾构隧道修建地铁车站地表沉降控制
Control standard for ground surface settlement in enlarging shield tunnel by PBA method to build metro station
摘要
Abstract
The experiment section of Beijing metro line 14 is constructed by earth pressure balance shield machine,and the shield tunnel will be enlarged by Pile-Beam-Arch method(PBA method) to form the metro station. This method can effectively and safely solve the contradiction between the construction of metro station and shield tunnel,but there is not similar engineer. The empirical formulas of predicting the ground surface settlement, the related statistics data and specifications, and numerical simulation methods are used to predict the ground surface settlement caused by the large diameter shield tunnel enlarged by PBA method in construction process. Combined with the ground surface settlement control reference values of Beijing metro station and the statistic data of existing metro station statistics, the ground settlement control standard is put forward. In accordance with the three class control management methods, the ground surface settlement is controlled step by step. The research results have some reference value to guide the engineering construction.1关键词
大直径盾构隧道/PBA法扩挖/地铁车站/地表沉降/控制标准Key words
large diameter shield tunnel/ enlarged by PBA method/ metro station/ ground surface settlement/ control standard分类
交通工程引用本文复制引用
王芳,贺少辉,汪挺,刘军,曹瑞琅..PBA法扩挖大直径盾构隧道修建地铁车站地表沉降控制[J].北京交通大学学报,2013,37(1):34-39,6.基金项目
北京城建设计研究总院有限责任公司技术创新资助项目(2010-07) （2010-07）
