高速铁路隧道空气动力效应对人员安全的影响研究  

Study on Aerodynamic Force Effect on Personnel Safety in High-speed Railway Tunnel

作　　者：费瑞振[1] 彭立敏[1,2] 杨伟超[1,2] 蔡铖[1] 

机构地区：[1]中南大学土木工程学院,湖南长沙410075 [2]中南大学高速铁路建造技术国家工程实验室,湖南长沙410075

出　　处：《中国安全科学学报》2013年第7期79-84,共6页China Safety Science Journal

基　　金：国家自然科学基金青年科学基金资助(51008310);国家自然科学基金高铁联合基金资助(U1134208)

摘　　要：为保障高速铁路的安全运行,以我国高速铁路普遍采用的100 m2双线隧道为研究对象,根据三维不可压缩Navier-Stokes方程和标准k-ε湍流模型建立隧道、空气和列车数值模型,该模型可以模拟单车正常运行以及存在列车事故2种情形。当列车以120,200,250,300和350 km/h的速度在隧道内运行时,疏散通道上人员所受空气动力的变化规律和分布特征,并进一步分析空气动力对人员安全的影响。研究结果表明,空气动力随着时间和空间的变化而变化,人员应避免在危险时段活动,单车正常运行和存在列车事故2种情形下空气动力均有可能威胁人员安全,因此需要采取有效措施避免事故发生。In order to guarantee the safe operation of high-speed railway,according to the 100 m2 double-line tunnel cross-section which is generally used in high-speed railway of China,the authors of this paper build a tunnel-air-train simulation model,based on the three-dimensional incompressible Navier-Stokes equations and the standard k-ε turbulence model.This model can simulate two situations one of which is that a single train runs through a tunnel normally while the other is that another train runs beside a train parked in the tunnel.Time-history variation rules and space distribution characteristics of aerodynamic force on people on evacuation passageways are studied respectively at 120,200,250,300 and 350 km per hour.Furthermore,the authors discuss the influence of the aerodynamic force on people safety.The results show that the aerodynamic force changes with time and space,people should avoid activities at dangerous time and places,and that since people safety may be threatened by the aerodynamic force in the two situations above,effective measures should be taken to avoid accidents.

关 键 词：隧道空气动力学 空气动力特性 人员安全性分析 非定常流 列车风 

分 类 号：X951[环境科学与工程—安全科学]