双线铁路大直径盾构隧道疏散滑梯可行性研究  

Study on Evacuation Slide Design of Large-diameter Shield Tunnel of Double-track Railway

作　　者：刘雨竹 王明年[1,2] 王松 郭晓晗 胡萧越 于丽[1,2] LIU Yuzhu;WANG Mingnian;WANG Song;GUO Xiaohan;HU Xiaoyue;YU Li(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;Key Laboratory of Transportation Tunnel Engineering,Ministry of Education,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学土木工程学院,成都610031 [2]交通隧道工程教育部重点实验室(西南交通大学),成都610031

出　　处：《铁道标准设计》2021年第10期123-129,共7页Railway Standard Design

基　　金：中铁二院工程集团有限责任公司科研项目(科2019-070);中铁第一勘察设计院有限公司科研项目(院科(川藏)19-17);河北省交通运输厅科技项目(YC-201903);中国铁路设计集团有限公司科技开发课题(2019YY120301-2)。

摘　　要：为得到双线铁路大直径盾构隧道竖向疏散通道的选型依据及其设计参数,首先,通过调研对比分析疏散楼梯与疏散滑梯的通行能力;其次,借助人员疏散软件Pathfinder研究疏散口通行能力对疏散时间的影响;最后,采用理论公式推导给出疏散滑梯的最优线型。研究结果表明:同等条件下疏散楼梯的通行能力大于疏散滑梯;对于铁路隧道竖向疏散,疏散口通行能力并不能明显影响疏散时间;考虑人员疏散过程中由于恐慌可能造成的踩踏风险,疏散滑梯优于疏散楼梯,大直径水下盾构铁路隧道竖向通道可采用滑梯型式;采用疏散滑梯时最优线型由3段构成,中间段BC满足旋轮线,其余2段满足最速曲线方程。In order to obtain the selection basis and design parameters of vertical evacuation passage for large diameter shield tunnel of double-track railway,the capacities of evacuation stairs and evacuation slides are analyzed through investigation and comparison.Secondly,with the help of personnel evacuation software Pathfinder,the influence of evacuation port capacity on evacuation time is studied.Finally,the optimal line type of evacuation slide is derived by theoretical formula.The results show that the traffic capacity of evacuation stairs is greater than that of evacuation slides under the same conditions.For vertical evacuation of railway tunnel,the capacity of evacuation port does not affect the evacuation time.Considering the stampede risk caused by panic during evacuation,the evacuation slide is better than the evacuation stair,and the vertical passage of large diameter underwater shield railway tunnel can adopt the slide type.The optimal line is composed of three sections when the evacuation slide is adopted,and the middle section BC satisfies the wheel line.The other two sections meet the fastest curve equation.

关 键 词：铁路隧道 大直径盾构 水下隧道 竖向疏散 疏散滑梯 最优线型 

分 类 号：U455.43[建筑科学—桥梁与隧道工程] U458[交通运输工程—道路与铁道工程]