多孔弹性路面的降噪机理与性能研究

曹卫东^1，2，周海生¹，吕伟民¹

（同济大学交通运输学院¹ 山东大学土建学院²  ）

摘要: 结合多孔弹性路面的试验研究，从多孔吸声和阻尼减振两个角度分析了其降噪机理和性能。试验结果表明：多孔弹性路面的噪声特性优于排水性沥青路面且总的降噪效果对小汽车可达13dB(A),卡车为6 dB(A)。

关键词： 多孔弹性路面；  排水性沥青路面；  降噪；  性能

                                                   Study on Noise Reduction Properties and Mechanism of

                                                         Porous Elastic Road Surface

                                                              Cao Wei-dong,Zhou Hai-sheng,^,Lu Wei-min

Abstract: Based on experimental research of porous elastic road surface (PERS) in Japan, the noise reduction properties and mechanism are analyzed from porous absorption and damping vibration. The results of experiments reveal that the noise characteristics of PERS are superior to those of drainage asphalt pavement (DAP) and total noise reduction of PERS for both cars and trucks, 13 dB(A) and 6 dB(A) respectively.

Key words: porous elastic road surface (PERS); drainage asphalt pavement (DAP); noise reduction; properties