宁夏某省道旧水泥混凝土路面共振碎石化技术应用研究与评价  

Research on the Application and Evaluation of Rubblization for Old Cement Concrete Pavement under Large Temperature Environment

作　　者：李瑞杰 罗廷赤 司旭 陈治明 郭书林 LI Ruijie;LUO Tingchi;SI Xu;CHEN Zhiming;GUO Shulin(Ningxia Highway Administration Center,Yinchuan Ningxia 750011,China;School of Civil and Hydraulic Engineering,Ningxia University,Yinchuan Ningxia 750021,China;Ningxia Engineering Co.,Ltd.,CCCC Infrastructure Maintenance Group,Yinchuan Ningxia 750001,China;Ningxia Transportation Investment Survey and Design Institute Co.,Ltd,Yinchuan Ningxia 750003,China;Ningxia Kelicheng Engineering Supervision Co.,Ltd,Yinchuan Ningxia 750003,China)

机构地区：[1]宁夏公路管理中心,宁夏银川750011 [2]宁夏大学土木与水利工程学院,宁夏银川750021 [3]中交基础设施养护集团宁夏工程有限公司,宁夏银川750001 [4]宁夏交投勘察设计院有限公司,宁夏银川750003 [5]宁夏科立诚工程监理有限公司,宁夏银川750003

出　　处：《交通节能与环保》2024年第6期24-31,共8页Transport Energy Conservation & Environmental Protection

基　　金：宁夏回族自治区交通运输厅科研项目(202200189);绿色低碳交通强国建设专项试点任务(公路废旧材料再生循环利用技术研究和应用)。

摘　　要：为降低公路建设成本、提高公路固废利用率,本文依托宁夏某省道公路建设项目,采用共振碎石化技术,对旧水泥混凝土路面实施改造。总结了基于大风大温差环境下,适合宁夏的共振碎石化技术工艺,提出了施工质量控制标准,分析确定了颗粒破碎粒径和级配、施工的最佳共振频率,检测和分析了路面弯沉及承载能力,从技术经济角度分析了共振碎石化技术的实用性。研究结果表明:混凝土路面共振碎石化技术适合宁夏大温差地区旧混凝土路面改造,具有技术操作简单、施工周期短、维养成本低、绿色环保的优势,符合公路长寿命路面和绿色低碳环保的理念。To strengthen the application of pavement resonance crushing technology,reduce highway construction costs,improve the utilization rate of highway solid waste,to rely on a local highway construction project in Ningxia,the resonance crushing technology is used to grind and transform the old cement concrete pavement,summarize the resonance crushing technology process suitable for large temperature difference and complex loading conditions,put forward the construction quality control standards,analysis to determine the particle crushing particle size and gradation,construction of the best resonance frequency of the building,testing and analysis of pavement bending and bearing capacity.The practicability of RPB is analyzed from the technical and economic point of view.The results show that the pavement resonance crushing technology is suitable for the transformation of old concrete in the alpine region of Ningxia,with the advantages of simple technical operation,short construction period,low maintenance cost,and green and environmental protection,which is in line with the concept of highway whole life pavement and green low-carbon environmental protection.

关 键 词：道路工程 旧水泥混凝土路面 共振碎石化 回弹模量 反射裂缝 弯沉 

分 类 号：U416.216[交通运输工程—道路与铁道工程]