沥青混凝土路面噪音产生机理与影响因素分析  

Mechanism and influence factors of noise generation in Asphalt Concrete Pavement

作　　者：戴倩 

机构地区：[1]重庆市迎龙建筑工程有限公司

出　　处：《黑龙江交通科技》2015年第5期1-2,共2页Communications Science and Technology Heilongjiang

摘　　要：首先从轮胎振动、空气泵效应、空气扰动、滑-粘效应等方面分析了轮胎和路面噪音产生机理,并从号筒效应和腔体共振效应两方面分析噪音增强机理,然后分析了噪音的影响因素。结果表明:不同类型的沥青混合料对噪声吸收程度影响较大;混合料孔隙率越大,对噪音的吸收效果越好;大粒径沥青混合料对高频率噪声吸收效果好,小粒径与之相反。First from the vibrations of the tire, the effect of the air pump, air disturbance, slip - stick effect, analysis the tires and the road noise generation mechanism, and from two aspects of the horn effect and the cavity resonance effect analysis of noise enhancement mechanism, and then analyzes the factors of the influence of noise. Results show that different types of asphalt mixing material of noise absorption has great influence; mixture porosity is large, the noise absorption effect is better; large particle size of asphalt mixed material of high frequency noise absorption effect is good, small particle size and instead.

关 键 词：沥青混凝土 路面噪音 机理分析 影响因素 

分 类 号：U416.217[交通运输工程—道路与铁道工程]