多孔沥青混凝土路面的降噪特性  

Noise Reduction Characteristics of Multihole Asphalt Concrete Pavement

作　　者：李睿[1] 郇家民 肖鹏飞 

机构地区：[1]济南市市政工程设计研究院有限责任公司,济南250001 [2]济南黄河路桥工程公司,济南250001 [3]济南城建设计研究院有限责任公司,济南250001

出　　处：《北方交通》2012年第6期54-56,共3页Northern Communications

摘　　要：探讨了多孔沥青路面结构的吸声降噪机理,分析了空隙率、混合料矿料级配组成以及路面厚度对多孔沥青混凝土路面降噪效果方面的影响。认为空隙率是影响多孔沥青混凝土降噪性能的关键因素,矿料级配的4.75mm与2.36mm通过率同样对降噪性能有显著影响。Sound absorption reduction mechanism of muhihole asphalt pavement structure is discussed, and the influences of void ratio, grading composition of mineral aggregate of mixture and the effect of pavement thick- hess on noise reduction of muhihole asphah concrete pavement are analyzed. It is considered that void ratio is the key factor of influencing noise reduction function of multihole asphalt concrete and passing rates of 4.75mm and 2.36ram for grading of mineral aggregate have remarkable influences on noise reduction function similarly.

关 键 词：多孔沥青混凝土 降噪 空隙率 矿料级配 

分 类 号：U414.1[交通运输工程—道路与铁道工程]