波动检测技术在大粒径填石路基压实质量检测中的应用

Application of Wave Detection Technology in Compaction Quality Inspection for Stone-filled Embankment Used Large Sized Particles

利用浮点工程动测仪现场采集填石路基的波动信号,基于互谱分析理论分析了各工点的波速指标;通过传统的挖坑灌水法获取各点的干密度和孔隙度,建立了波速指标和干密度及孔隙度的拟合关系。结果表明:现场波速指标和直接反应路基压实质量的干密度和孔隙度具有良好的对应关系。

The wave signals of the rock-filled embankment were gathered by RSM - 24FD, and then the wave velocity of every testing point was analyzed based on cross-spectral analysis theory. And the dry density and porosity of the points were gained by the method of digging holes and filling water. The fitted formulas between the wave velocity and the dry density and porosity were established, and the results indicate there are well correspondences between the wave velocity and the dry. density and porosity.