城際鐵路地下站臺列車風特性及對人員安全的影響研究
[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.
【學位授予單位】:中南大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:U298;U270.11
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