城际铁路地下站台列车风特性及对人员安全的影响研究

发布时间：2019-01-27 13:21

【摘要】：最近几年,随着我国城际铁路的快速发展,地下车站数量的增加以及列车运行速度的提高,列车风对人的安全影响更加显著。而目前,国内外针对城际铁路地下站台的列车风研究较少,本文依托高铁联合基金课题——高速铁路交叉隧道动力特性及结构安全性理论研究(U1134208)和国家自然科学基金课题——高速铁路隧道内接触网系统气-固耦合振动机理及风致疲劳实验研究(51008310),采用数值模拟的方法,对城际铁路地下车站内,列车运行时站台内的列车风特性及对人员安全的影响进行了系统的研究。所完成的主要工作如下： (1)参照长株潭城际铁路开福寺站的设计参数,运用流体力学计算软件FLUENT建立隧道-车站-列车空气仿真模型。分别对两种运行状态进行了模拟：①岛式站台内单列车通过车站；②侧式站台车站内存在一列停靠的列车,另一列车通过车站(存在停靠列车工况)。 (2)分析车站断面上某些典型位置列车风的变化过程,对列车经过时这些位置上空气沿各方向的流速变化规律进行研究,包括风速大小及方向。 (3)对列车完全进入车站后车站内三维空间流场进行分析,深入探讨车站内列车风的纵向、横向分布规律。并对比分析不同工况下的计算结果。 (4)对不同工况下车站内的列车风特性进行详细分析,总结不同工况下车站内列车风的变化规律。 (5)采用站台人员可能承受的最大气动力与风速的控制标准,综合各个工况的列车风计算结果,对不同条件下车站内人员的安全性作出判断,并根据计算结果确定了站台人员的安全区域。
[Abstract]:In recent years, with the rapid development of intercity railway, the increase of underground station number and the increase of train speed, train wind has a more significant impact on human safety. At present, there is little research on train wind in the underground platform of inter-city railway at home and abroad. This paper relies on the research of high-speed railway joint fund, the theoretical study of dynamic characteristics and structural safety of high-speed railway cross tunnel (U1134208), and the subject of National Natural Science Foundation of China-Gas-Solid Coupling Vibration of catenary system in High-speed Railway Tunnel Experimental study on dynamic Mechanism and Wind-induced fatigue (51008310), By using numerical simulation method, the wind characteristics of trains and their effects on personnel safety in underground stations and platforms of inter-city railway are studied systematically. The main works are as follows: (1) according to the design parameters of Kaifu Temple Station of Changsha-Zhuzhou-Xiangtan Intercity Railway, the air simulation model of tunnel-station train is established by using fluid dynamics calculation software FLUENT. Two kinds of operation states are simulated: (1) the single train passing through the station in the island platform, and the (2) the train in the side platform station with one stop and the other passing through the station (under the condition of stopping train). (2) the variation process of train wind in some typical locations on the railway station section is analyzed, and the variation law of the velocity of air in these positions along various directions is studied, including the magnitude and direction of the wind speed. (3) analyze the three-dimensional space flow field after the train enters the station completely, and probe into the longitudinal and transverse distribution law of train wind in the station. The calculation results under different working conditions are compared and analyzed. (4) the train wind characteristics in different working conditions are analyzed in detail, and the variation law of train wind in different working conditions is summarized. (5) adopting the control standard of the maximum aerodynamic force and wind speed that the platform personnel may bear, synthesizing the results of the train wind calculation under various working conditions, and judging the safety of the personnel in the station under different conditions, According to the calculation results, the safety area of platform personnel is determined.
【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U298;U270.11

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