基于FWD荷载作用的路面力学指标分析

FWD落锤式弯沉仪在路面检测中已经被越来越多地采用。路面结构层厚度及材料的力学性能对于检测结果有着极其重要的影响。基于正交理论,提出具有代表性的试验方案,并通过各组试验的计算结果,分析路面结构参数的变化对于FWD动荷载作用下路面力学性能的影响,对我国FWD检测指标体系的形成具有重要的参考意义。

Analysis of Mechanical Indices of Pavement under FWD Load

The FWD （falling weight deflectometer） has been more and more applied in pavement detection, while the thickness of structural layers on pavement and the mechanical properties of materials have considerably important influences on detection results. This paper based on the orthogonal theory propos- es a representative test plan, and analyzes the influences of changes of structural parameters on pavement on the mechanical properties of pavement under the dynamic FWD load in accordance with the calcula- tion results from various test groups. The test plan proposed in the paper has an important reference significance for the formation of China national FWD detection indices system.