摘要
为降低隧道混凝土路面交通事故,采用手动铺砂法、动态摩擦测试仪法、车载声强(OBSI)轮胎/路面噪声测试法对于刻槽水泥混凝土路面的构造深度、动态摩擦系数、轮胎/路面噪声进行了对比研究,结果表明:相同槽参数下,纵向刻槽动态摩擦系数稍大于横向刻槽;纵向噪声水平、最大声压级小于横向刻槽路面;随着槽深的减小、槽间距的增加,构造深度减小;槽间距的增大,纵向刻槽路面噪声、最大声压级随之减小;槽深增大,纵向刻槽路面噪声增大。
In order to reduce road accidents of tunnel concrete,the research on different forms of pavement skid and noise reduction features were compared. The texture depth,dynamic friction coefficient,pavement noise＇ of longitudinal groove,exposed stone,diamond grinding concrete pavement,opengraded asphalt concrete pavement has been studied by manual sanding,dynamic friction tester law,OBSI methods The results showes that： longitudinal groove dynamic coefficient of friction is greater than the lateral groove,maximum sound pressure level is less than the lateral longitudinal groove pavement under the same groove parameters,with the groove depth decreas and groove spacing increas,structural depth is reduced. With slot spacing increases,road noise and the maximum sound pressure level of longitudinal groove will decreases,with groove depth increases,the longitudinal groove road noise will be greater.
出处
《公路工程》
北大核心
2015年第2期109-112,共4页
Highway Engineering
基金
教育部长江学者和创新团队发展计划资助(IRT1139)
兰州交通大学青年科学基金(2011031)
兰州交通大学科技支撑基金(ZC2012004)
