Application of Vehicle-borne Falling Weight Deflectometer in Highway Nondestructive Testing
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摘要: 半刚性基层沥青路面是我国高等级公路常见路面结构,由于受行车荷载、自然环境等多种因素的影响,大量路面出现了不同程度的早期损坏。研究表明采用车载落锤式弯沉仪检测路面,可获取精确的检测数据,为路面结构性能评价提供真实、有效的数据,同时,对于公路维修养护具有重要的指导意义。基于此,本文在充分了解车载落锤式弯沉仪应用优势的前提下,结合具体案例,对车载落锤式弯沉仪在公路无损检测中的应用要点进行了分析与探讨,以期为类似工程提供参考。Abstract: Asphalt pavement with semi-rigid base is a common pavement structure for high-grade highways in China. Due to the influence of driving load, natural environment and other factors, a large number of pavements have different levels of early damage. Studies have shown that the use of vehicle-mounted drop-weight deflectometer to detect road surface can obtain accurate test data, provide real and effective data for the evaluation of pavement structure performance, and at the same time, have important guiding significance for highway maintenance and repair.Based on this, on the premise of fully understanding the application advantages of vehicle-mounted drop-weight deflectometer, combined with specific cases, the application points of vehicle-mounted drop-weight deflectometer in highway non-destructive testing are analyzed and discussed, with a view to similar projects for reference.
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