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西南地区旧水泥路面共振碎石化方法与效果评价

Resonant Crushing Method and Effect Evaluation of Old Cement Pavement in Southwest China
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摘要 以S436巡场至玉和二级公路升级改造工程为依托,对共振碎石技术原理和关键技术进行了研究;试验采用RMI共振式破碎机对试验路段进行破碎实验,通过计算调整破碎机激振频率,使路面发生共振效应;期间采用破碎-清理-碾压的关键技术路线,划分应力释放渠和隔振沟,对路面共振频率效应、破碎后颗粒级配、路面强度、路面平整性以及路面回弹模量等数据进行分析评价,研究结果表明共振碎石化技术对西南地区旧水泥路面改造提升了作业效率并降低了环境污染。 Based on the upgrading and reconstruction project of S436 patrol station to Yuhe second-class highway,the principle and key technologies of resonance macadam technology are studied.RMI resonance crusher is used to crush the test road,and the vibration frequency of the crusher is adjusted by calculation to make the road surface resonate.During this period,the key technical route of crushing-cleaning-rolling is adopted,and the stress relief channel and vibration isolation channel are divided.The data of pavement resonance frequency effect,particle gradation after crushing,pavement strength,pavement smoothness and pavement resilience modulus are analyzed and evaluated.The research results show that the resonance macadam technology improves the operation efficiency and reduces environmental pollution in the reconstruction of old cement pavement in southwest China.
作者 吕永刚 张代江 胡伟锋 谭逢彬 李子健 Lv Yonggang;Zhang Daijiang;Hu Weifeng;Tan Fengbin;Li Zijian(China Communications Infrastructure Maintenance Group Co.,Ltd.,Beijing,China;Xi'an University of Science and Technology,Xi'an,China)
出处 《科学技术创新》 2024年第9期155-161,共7页 Scientific and Technological Innovation
关键词 道路工程 路面改造 共振破碎 基本原理 现场测试 效果评价 road engineering pavement reconstruction resonance crushing basic principles field test effect evaluation
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