The Experimental Analysis of Surface Wave Testing in the Rock-filled Embankment Used Large Particles

The Rayleigh wave testing method is one of the in-situ nondestructive tests, which the theory is quite mature, and it characterized by portable equipment, well operability and fast detection speed. So it can greatly improve the efficiency of the compaction detection of the highway embankment, and it especially has incomparable advantage for the compaction quality detection and monitoring of earth-rock filled or rock filled embankment. In the paper, by the analysis of the field wave testing result of the rock-filled embankment, obtained the velocity of the rock-filled embankment, and researched the relationship of the field wave velocity and the dry density, the relationship of the field wave velocity and the porosity. 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. The relationship of between porosity and the shear velocity of the rock-filled is a good linear correlation, and the relationship of between dry density and shear wave velocity of the rock-filled is a good power function relation.