Abstract: The spectral analysis of surface waves system on site testing for performance of highways subgrade is discussed in this paper. On the basis of the modulus of resilience tested on site, the mechanical performance of highways subgrade was investigated in a systematical way by the Rayleigh Wave test, bending test, field CBR and loading plate test. Using statistics, an empirical relation between Rayleigh Wave velocity and modulus of resilience for highways subgrades is established, and the validity

Key words: rayleigh wave, modulus of resilience, subgrade

摘要： 笔者在文中介绍了浅层面波测试技术应用于公路路基性能测试.根据路基现场回弹模量实测资料，采用瑞利 波测试、弯沉测试、现场CBR与载荷板试验，系统研究了路基的力学特性.运用统计方法原理，得出瑞利波速与回弹 模量的经验关系，验证了弯沉试验结果推算土基回弹模量的有效性.并对路基力学性能测试与评价提出了建议

关键词: 瑞利波, 回弹模量, 路基