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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

第11卷    第5期    总第61期    2014年10月

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文章编号:1672-7029(2014)05-0100-06
长沙市既有铁路干线隔音隧道设计研究
王薇,尹俊涛,丁篷,黄叙

(中南大学 土木工程学院,湖南 长沙 410075)

摘 要: 随着我国经济发展和城市规模不断扩大,加上人口密度的增加以及铁路列车的提速,城市内既有铁路干线的铁路噪声污染问题变得越来越严重,对其进行治理已刻不容缓。修建隔音隧道作为一种重要的铁路降噪措施,成为该领域的热点。根据长沙市内既有铁路-京广铁路的实际情况,借鉴现有公路和城市轨道隔音隧道设计施工经验,依据相关的现行土木工程规范并结合铁路隔音隧道的特点,对既有铁路干线隔音隧道的可行性和总体设计流程进行分析研究,并通过对隔音隧道的三维数值模拟,得出对列车降速可以减少空气动力学效应带来的不利影响的结论,为今后既有铁路干线隔音隧道的设计提供理论支撑和技术指导。

 

关键字: 既有铁路;隔音隧道;空气动力学

Study on existing urban railway soundproof tunnels in Changsha
WANG Wei, YIN Juntao, DING Peng, HUANG Xu

School of Civil Engineering, Central South University, Changsha 410075, China

Abstract:Along with the economic development, the city scale expands unceasingly with the increase of population density. However, the railway noise problem is becoming increasingly serious with the acceleration of the train speed. Therefore, some measures must be adopted to deal with the problem. As an important railway noise reduction measure, soundproof tunnel construction is becoming more and more significant in handling this problem. Based on the situation of Guangzhou railway partly located in Changsha, the feasibility and overall design process of the soundproof railway tunnel was analyzed by drawing on the experience of design and construction of the existing roads or urban soundproof tunnels as well as the existing civil norms, from which a conclusion was made that train deceleration can reduce adverse aerodynamic effects by means of three- dimensional numerical simulation. The research results can provide theoretical support and technical guidance for the design of soundproof tunnels in future.

 

Key words: existing railway; soundproof tunnel; aerodynamics

ISSN 1672-7029
CN 43-1423/U

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