旧水泥混凝土路面FWD实测数据的分析

基于某国道的FWD实测数据,分析FWD参数与旧水泥混凝土路面状况(现场调查实录及测试数据)间的某些相关性,探索旧水泥混凝土板的接缝传荷能力、弯曲刚度、综合承载能力等定性或定量的判别方法,提出利用FWD加载中心弯沉值总水平评价旧水泥混凝土路面综合承载能力的设想。

Analysis of FWD Data from Field Test for Existing Cement Concrete Pavement

Based on the measured FWD(Falling Weight Deflectometer) data from the field test of the existing cement concrete pavement of a national highway, this paper analyses the relationships between the values derived from the FWD measurement and the pavement condition data which was collected by means of field visual survey and test. Some qualitative and quantitative methods for obtaining the joint load transfer and pavement stiffness and load bearing capacity of the existing cement concrete pavement slab are discussed.An idea of evaluating the load bearing capacity of overall pavement structure with summation of FWD deflections in center of loading plate is offered.