摘要
依托广州市轨道交通6号线东山口站左线盾构隧道扩挖地铁车站工程,应用数值模拟方法对隧道扩挖施工工序进行分析,并结合以往工程经验,确定了合理的施工方法。研究表明,在暗挖隧道扩挖施工过程中,采用两台阶四步开挖法较两台阶两步开挖法在控制周围地层变形、衬砌受力等方面有利,建议采用两台阶四步开挖法。
Based on the metro station constructed by shield tunnel expanding engineering of Dongshankou station of Guangzhou metro line #6,tunnel expanding excavation process is analyzed by numerical simulation method,combined with previous engineering experience,the reasonable construction method is given.Studies have shown that,in the construction process of expanding excavation underground running tunnel,it is better to adopt two steps four step excavation method than two steps for two step excavation method in aspects of controlling the deformation of surrounding layer and the stress of lining.
出处
《山西建筑》
2013年第24期182-184,共3页
Shanxi Architecture
关键词
盾构隧道扩建
地铁车站
数值模拟
施工方法
shield tunnel expanding
metro station
numerical simulation
construction method
