摘要
高速列车在隧道中运行时所诱发的空气动力效应与旅客乘车耳膜舒适度、隧道洞口附近环境保护、隧道设计参数、车体结构设计参数和线路运营条件等紧密相关,是高速铁路隧道设计和运营中必须考虑的关键技术问题。文章首先介绍了考虑空气动力学指标的高速铁路隧道设计方法;其次分别介绍了瞬变压力、微气压波、空气阻力、空气动力荷载等空气动力学指标的产生机理、计算方法、控制措施及设计方法,尤其是创新性地提出了考虑瞬变压力的高速铁路隧道净空断面设计方法、无砟轨道对微气压波激化作用的现场试验规律和隧道空气阻力现场试验的"特定有限区间"采样方法等;最后对高速铁路隧道空气动力学效应进行了技术发展展望。
Aerodynamic effects induced by high-speed trains running in tunnels are related to the comfort of passenger’s eardrum,environmental protection near tunnel entrance,tunnel design parameters,train structure design parameters and line operation conditions,etc.,which are the key technical issues to be considered in the design and operation of high-speed railway tunnels.In this paper,the design method of high-speed railway tunnel considering aerodynamic index is introduced firstly,then the generation mechanism,calculation method,control measures and design method of aerodynamic indexes such as transient pressure,micro pressure wave,air resistance and aerodynamic load are introduced respectively.Finally,the technical development prospect of aerodynamics effect of high-speed railway tunnel is given.The innovation of this paper is to put forward the design method of cross section of high-speed railway tunnel considering transient pressure,the field test law of the intensification of micro pressure wave in nonballasted-track tunnel,and the field test method of tunnel air resistance for sampling in specific limited interval.
作者
吴剑
王建宇
万晓燕
史宪明
WU Jian;WANG Jianyu;WAN Xiaoyan;SHI Xianming(China Railway Southwest Research Institute Co.,Ltd.,Chengdu 611731)
出处
《现代隧道技术》
EI
CSCD
北大核心
2019年第S01期13-23,共11页
Modern Tunnelling Technology
