摘要
弯沉是道路结构性能评价的重要指标,交通速度弯沉仪(TSD)是一种能够连续、快速获取路面动态弯沉的新型无损检测工具。为了更好地推动TSD的发展与应用,首先,在明确TSD的测量原理及计算方法的基础上,结合检测数据,分析了TSD检测的可重复性及与贝克曼梁(BB)的相关性;其次,探讨了TSD检测的影响因素,并重点分析了行驶速度对弯沉的影响;最后,结合弯沉差TSD_(300)指标,对测试路段进行了结构性能评价。研究成果为快速无损评价路面结构性能提供了支撑,并为道路的养护与管理提供了更高效、经济的发展方向。
Deflection is an important index for the evaluation of asphalt pavement structure.Traffic Speed Deflectometer(TSD)is a new type of nondestructive testing tool that can continuously and rapidly obtain the dynamic deflection of the road surface.To better promote the development and application,the repeatability of TSD testing and the correlation with Beckman Beam(BB)were analyzed based on clarifying the measurement principle and calculation method of TSD combined with the test data.The factors influencing TSD detection were discussed and the influence of driving speed was emphatically analyzed.Combined with the TSD_(300) index,the structural performance of the test section was evaluated.The research results provided support for rapid nondestructive evaluation of pavement structure performance and a more efficient and economic development direction for road maintenance and management.
作者
高文堃
童晓莹
程怀磊
GAO Wenkun;TONG Xiaoying;CHENG Huailei
出处
《上海公路》
2023年第1期1-7,M0003,共8页
Shanghai Highways
关键词
沥青道路
交通速度弯沉仪
贝克曼梁
行驶车速
结构性能评价
asphalt pavement
traffic speed deflection meter
beckman beam
driving speed
structural performance evaluation
