关于城市轨交放大A型车盾构直径限界的研究  

Research on Shield Diameter Limit of Enlarged A-type Car of Mass Transit

作　　者：焦丽莉[1] 

机构地区：[1]上海市隧道工程轨道交通设计研究院

出　　处：《地下工程与隧道》2014年第3期45-47,57,共3页Underground Engineering and Tunnels

摘　　要：上海轨交A型车单圆盾构隧道限界圆直径为5 200mm,存在应急疏散平台设置条件差、运营期结构维修加固空间不足等问题。从限界角度,就放大盾构直径的可行性进行了研究,提出了放大限界圆直径至5 600mm的建议。Limited circular diameter of single-circular shield tunnel for A-type car of Shanghai rail transit is 5200 mm,where problems,such as poor setup condition of emergency evacuation platform and insufficient service and reinforcing space for operation-stage structure,exist.With regard to limit,feasibility of enlarged shield diameter is studied,and it is recommended to enlarge the limited circular diameter to 5600 mm.

关 键 词：轨交 A型车 盾构隧道 直径 限界 应急疏散平台 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]