城市轨道交通振动与噪声

基金项目: 教育部高等学校骨干教师资助计划项目

Vibration and noise of the urban rail transit

1.
Shanghai Institute of the Urban Rail Transit Design and Research, Shanghai 200070, China
2.
Department of Rail Engineering, Tongji University, Shanghai 200331, China

摘要: 随着经济的发展, 城市轨道交通的振动和噪声问题越来越引起人们的重视。叙述了轨道结构振动的产生原因及环境振动的评价指标, 分析了铁路噪声的组成及对环境噪声的评价标准。通过对国内外资料的分析, 认为轮轨噪声是城市轨道交通噪声的主要组成部分, 要对轨道交通减振降噪, 降低轨道结构的振动是关键。最后提出对轨道交通减振降噪的一些建议。
- 城市轨道交通 /
- 振动 /
- 噪声
Abstract: With the development of the urban economy, the vibration and noise induced by the urban rail transit is attended more and more. This paper described the cause of inducing the vibration of track structure and the indices of evaluating environment vibration, analyzed the copmosition of the noise of the urban rail transit and the indices of evaluating environment noise. After analyzing the data from home and abroad, it is pointed out that the wheel/rail noise is the main composition in the urban rail transit noise, and the key is to reduce the vibration of the track structure. Some suggestions are put forward for reducing the vibration of the track structure.
- urban rail transit /
- vibration /
- noise

图 1 速度与噪声之间的关系

Figure 1. The relationship between noise and train speed

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表 1 ISO关于建筑物内振动限值的建议

Table 1. The suggestion vibration value of ISO for the inside of building

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表 2 城市各类区域铅垂向Z振级标准值(dB)

Table 2. In Z direction for various type urban area

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表 3 部分国家的铁路噪声法规中对居住区的容许值和建筑物正面噪声级标准(dB)

Table 3. The rule of law in the part countries for the noise level standard in the resident area and on the frontispiece of building (dB)

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表 4 等效声级L_Aeq

Table 4. The equivalent A-weight sound pressure levelL_Aeq (dB)

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[3]	国际协力事业固短期专家组. 高速铁路的减振降噪技术讲议资料[Z]. 北京, 1999.1-11.
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