FWD应用于沥青路面结构承载能力的非破损评价

Nondestructive Evaluation with FWD on Structural Bearing Capacity of Asphalt Pavements

通过弹性多层体系的计算分析，建立了应用路表弯沉盆估算沥青路面结构各层应变的计算简式；进而应用ＦＷＤ实测弯沉盆数据，对上海市有关路段的结构应变状况及其承载能力作出了评价．评定结果满足工程精度要求，且具有快速、非破损的特点．

In this paper, the equations to calculate strains in pavement structures with surface deflection basin are developed. The Falling Weight Deflectometer measurements of some stretches in Shanghai were used to evaluate the conditions of structural strain and bearing capacity. The results indicate that it has good precision for using in practice and has the characteristics of fast and nondestruction.