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作 者:徐峻 杨松立 叶周景 汪林兵 魏亚[4] 杨碧宇 孟雄 崔通 何春伟 Xu Jun;Yang Songli;Ye Zhoujing;Wang Linbing;Wei Ya;Yang Biyu;Meng Xiong;Cui Tong;HeChunwei(Zhaotong Expressway Investment and Development Co.,Ltd.,Zhaotong 657099,China;National Center for Materials Service Safety,University of Science and Technology Beijing,Beijing 100083,China;College of Engineering,University of Georgia,GA 30602,USA;Department of Civil Engineering,Tsinghua University,Beijing 100084,China;Zhaotong Zhaoyang Bypass Expressway Investment and Development Co.,Ltd.,Zhaotong 657099,China;Poly Changda Engineering Co.,Ltd.,Guangzhou 510640,China;Zhaotong City Transportation Construction Engineering Quality and Safety Supervision Bureau,Zhaotong 657000,China)
机构地区:[1]昭通市高速公路投资发展有限责任公司,云南昭通657099 [2]北京科技大学国家材料服役安全科学中心,北京100083 [3]佐治亚大学工程学院,美国佐治亚州30602 [4]清华大学土木工程系,北京100084 [5]昭通昭阳绕城高速公路投资开发有限公司,云南昭通657099 [6]保利长大工程有限公司,广东广州510640 [7]昭通市交通建设工程质量安全监督局,云南昭通657000
出 处:《市政技术》2023年第5期27-35,共9页Journal of Municipal Technology
基 金:云南省交通运输厅科技创新示范项目:高品质长寿命水泥混凝土路面修筑关键技术研究及应用示范(云交科教便(2021)25号)。
摘 要:为了优化路表刻槽纹理,有效降低行车过程中轮胎/路面噪声,依托实际工程,开展了车载声强测试,分析了等间距横向刻槽、不等间距横向刻槽、拉毛深度和不同刻槽纹理类型对路面噪声强度的影响。研究结果表明:应关注不同刻槽工况下噪声强度的频谱分布,需重点关注连续噪声强度达85 dB(A)以上且介于2000~4000 Hz的噪声;可适当增大刻槽间距,减小刻槽深度,将噪声能量分散到更大的频率范围内,但需确保在人耳敏感的噪声强度范围内降低噪声强度;不等间距横向刻槽和浅刻槽虽然减少了轮胎/路面的声调尖峰,但增加了2000~4000 Hz的噪声强度;拉毛工艺对轮胎/路面噪声的影响很小,相比于横向刻槽,纵向刻槽没有明显的声调尖峰,整体噪声强度较为平缓。该研究成果可为优化城市水泥混凝土路面的刻槽方案提供参考,对减少城市交通噪声具有重要意义。In order to optimize the pavement grooving texture to effectively reduce tire/pavement noise during driving,On-Board Sound Intensity(OBSI)testing is performed based on a road construction project.The impact of types of grove texture such as equidistant transverse grooves,unevenly spaced transverse grooves,burlap drag depths and different texture types on tire/pavement noise intensity are analyzed.The results indicate that particular attention should be paid on the frequency spectrum distribution of noise intensity under different groove working conditions as well as continuous noise intensity reaching 85 dB(A)and ranging between 2000~4000 Hz;In order to disperse noise energy to a wider frequency range,it is advisable to increase groove spacing and reduce groove depth.However,it is crucial to ensure noise intensity reduction within the range of human ear sensitivity;Although unevenly spaced transverse grooves and shallow grooves reduce sharp peaks in tire/road noise,increase noise intensity between2000~4000 Hz;The study also revealed that the impact of burlap drag on tire/road noise is insignificant.Compared with transverse grooves,longitudinal grooves have no obvious sharp peaks in tire/road noise with a relatively smooth overall noise intensity.The research provides valuable insights for optimizing groove schemes on urban cement concrete roads.It is important for reducing urban traffic noise.
关 键 词:水泥混凝土路面 刻槽 纹理 轮胎/路面噪声 车载声强
分 类 号:U416.216[交通运输工程—道路与铁道工程] U467.4[机械工程—车辆工程]
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