列车最高运行速度120km/h城轨区间盾构隧道研究  

Research on the Urban Rail Shield Tunnel for Train at Highest Running Speed of 120 km / h

作　　者：林刚[1] 罗世培[1] 朱宏海[1] 

机构地区：[1]中铁二院工程集团有限责任公司,成都610031

出　　处：《铁道工程学报》2014年第12期88-92,共5页Journal of Railway Engineering Society

摘　　要：研究目的:目前我国城市轨道交通规范未对列车最高运行速度超过100 km/h的相关问题作出规定和要求,国外也无完全相似的成功经验。本文结合东莞城市轨道交通R2线工程,对城市轨道交通列车最高运行速度超过100 km/h、列车运行过程中的人体舒适度标准、空气动力学效应及配套的结构设计等问题进行研究,研究结论指导工程设计,供同行参考。研究结论:(1)当城市快速轨道交通列车运行速度高于100 km/h后,地下区间隧道断面净内空尺寸除满足限界要求外,还应考虑空气动力学效应,根据目前实际情况,乘客舒适度要求的满足宜主要通过增大隧道有效断面积来实现;(2)内径6.0 m、外径6.7 m、强度C50的单层钢筋混凝土平板型盾构隧道衬砌结构能满足列车最高运行速度120 km/h城轨区间隧道结构力学、乘客舒适度等方面的要求;(3)本研究成果已成功应用于城市轨道交通领域。Research purposes ： At present, all problems of urban rail transit that the highest running speed of the train is more than 100 km/h are not specified or required in the urban rail transit specification in China and there is also not the similar successful experience at abroad. On the background of Line R2, Dongguan urban rapid rail transit, the study has been made on urban rail transit that the highest running speed of the train is more than 100 kin/h, and comfort standard during the running of train, aerodynamic effect and design of auxiliary structure. The study result can provide a direct guide for engineering design and a reference for similar engineering. Research conclusions：（1） If the train speed is more than 100 km/h, the inner clearance of underground sectional tunnel section meets not only gauge requirements, but also aerodynamic effect. According to current actual conditions, the effective section area of the tunnel should be enlarged to meet the comfort requirement. （2） The flat shield tunnel lining structure with C50 single - layer reinforced concrete that the inner diameter is 6.0 m and outer diameter is 6.7 m can meet the structural mechanics of sectional tunnel and comfort requirement of urban rail transit with the highest running speed of 120 km/h. （3） The above research achievement has been applied successfully to urban rail transit.

关 键 词：盾构隧道 人体舒适度 空气动力学 结构设计 

分 类 号：U451.3[建筑科学—桥梁与隧道工程]