土石混填路基中便携式落锤弯沉仪(PFWD)评价路床顶弯沉研究  

Research on the Evaluation of Roadbed Top Deflection Using Portable Falling Weight Deflectometer(PFWD)in Soil Rock Mixed Roadbed

作　　者：乔盘 封明聪 Qiao Pan;Feng Mingcong(Ruizhi Transportation Technology Consulting Co.,Ltd of Hebei Transportation Planning Institute,Shijiazhuang 050091,China;Key Laboratory of Highway Safety Perception and Monitoring in Hebei Province,Shijiazhuang 050091,China)

机构地区：[1]河北交规院瑞志交通技术咨询有限公司,石家庄市050091 [2]河北省公路安全感知与监测重点实验室,石家庄市050091

出　　处：《北方交通》2025年第2期63-66,共4页Northern Communications

摘　　要：高速公路路床顶验收工作中,路基承载力是衡量施工质量的重要指标之一。在遵秦高速现场,应用便携式落锤弯沉仪(PFWD)以及弯沉车(FWD),以贝克曼梁法(BB)点对点检测结果为样本,进行了指标间的相关性分析,验证了应用PFWD进行动回弹模量检测这一方法在土石混填路基验收中的可行性。In the acceptance work of expressway roadbed top,the bearing capacity of the roadbed is one of the important indicators to measure the construction quality.At the site of Zunqin expressway,the portable falling weight deflectometer(PFWD)and front-wheeled drive(FWD)are used,and the correlation analysis between indicators is carried out by taking the point-to-point detection results of the Beckman beam method(BB)as the sample,so as to verify the feasibility of using PFWD to detect the dynamic rebound modulus in the acceptance of soil rock mixed roadbed.

关 键 词：路基工程 便携式落锤弯沉仪 贝克曼梁法 相关性 

分 类 号：U416.1[交通运输工程—道路与铁道工程]