城市轨道交通噪声预测方法

在对城市轨道交通的噪声源特点进行分析的基础上,用类比法、比例法、模式法、模型法比较了国内外比较成熟的铁路噪声预测方法,提出把城市轨道交通噪声作为一个线声源、噪声源分解为轮轨噪声和牵引噪声分别进行预测的方法,并给出了详细的计算步骤.结合曼谷机场连接线工程,实例证明了此方法的可操作性及科学性.

Prediction Methods for the Noise of Urban Rail Transit

With the development of economy and the increase of population, urban rail transit construction has become the firstly choice for trip mode, it will effectively alleviate traffic jam in big and medium-size cities of China. But people have to face a series of problems caused by URT, especially the noise pollution. Through analyzing the characteristics of the noise source of urban rail transit, this paper compares some predictive methods for railway noise both from home and abroad, reoposes a detailed operation methodt in which the noise of urban railway is regarded as a line voice source, and divides the sources into propulsion noise and wheal-rail noise. Suvamabhumi Airport Rail Link in Bangkok testifies this method as operative and scientific.