本文基于激光多普勒技术,分析建立了一种可以在交通流速度范围内快速测量路面在动态荷载作用下的响应变形的方法以及计算模型。在该方法中,通过对路面在动态荷载作用下不同时刻变形的分解与分析,利用变速直线运动的特点来分析路面弯沉产生的过程,并利用离散采样数据计算路面弯沉。通过推导分析,能够在交通流速度下实现,达到了路面弯沉快速检测的目的。 Based on the laser Doppler technique, this paper established a method and calculation model that can quickly measure the response deformation of pavement under dynamic load in the range of traffic flow velocity. In this method, the deformation of pavement under different dynamic loads is decomposed and analyzed, and the process of pavement deflection is analyzed based on the characteristics of variable speed linear motion. The deflection of pavement is calculated by discrete sampling data. By deducing and analyzing, it can be realized under the traffic flow speed and achieve the purpose of rapid detection of road deflection.