摘要
文章以采用PBA工法的某城市地铁某暗挖车站的导洞临近施工为研究对象,并结合导洞间夹有1座既有隧道这一特殊情况,分析了上下层导洞施工顺序对导洞自身、地层沉降、导洞间既有结构的影响,论证了导洞近接施工存在的规律,根据得出的结论提出了应对措施,并通过有限元数值分析软件进行了分析验证,其结果对今后类似工程设计和施工有一定的指导意义。
Taking one pilot tunnel near a bor ed station of a certain metro with PBA method for example,considering the special condition of one existing tunnel among pilot tunnels,it analysed the influence of construction consequence on pilot tunnel itself,ground settlement and the existing structure among pilot tunnels,demonstrates the construction rules of this pilot tunnel.And the corresponding counter measures are put forward accordingly.In addition verifying analysis was carried out by means of finite element method.The result will play a guiding role to the design and construction of similar projects.
出处
《现代隧道技术》
EI
北大核心
2010年第4期94-100,共7页
Modern Tunnelling Technology
关键词
地铁车站
PBA工法
导洞
近接施工
有限元
Metro station
PBA method
Pilot tunnel
Construction
Finite element method
