【摘要】 美国高速铁路噪声预测方法是一个较成熟和有效的方法。通过对该方法的研究,我们认为在对该方法适当修正后,可适用于我国客运专线、高速铁路环境噪声预测和评价。该修正包括:参考暴露声级的修正、衰减距离的修正、小半径的修正和桥梁修正。在对京广线、郑徐线、沪宁线和沪杭线等我国铁路主要干线进行现场测试的基础上,提出具体的修正值,并根据实测数据,对修正的有效性进行验证。更多还原

【Abstract】 In the United States,high-speed railway noise prediction method is a perfect and effective technique.In study on this method we realized that this method might be used to predict and assess the environmental noise of passenger railway and high speed railway in China after suitable modification of the technique.The modification includes adjustment of reference exposure sound level,adjustment of attenuation distance D,adjustment of small radius of curved railway,and adjustment of bridges.On the base of in-situ tests carried out in China’s main railways,such as Beijing-Guangzhou,Zhengzhou-Xuzhou,Shanghai-Nanjing,Shanghai-Hangzhou etc.,the detailed adjustment values were proposed and the effectiveness of the modified method were verified in comparison with the measurement data.更多还原