Experimental Study of the Light Dynamic Penetration Method to Test Shallow Fill of Coarse-sand in Subsoil Engineering

摘要

In this paper, experimental relationship between light dynamic penetration blow counts N10 and relative density Dr of coarse-sand is built on the base of large model tests by simple statistics. Then, the feasibility of this mothed is proved by three-dimension numerical calculation and field tests. It shows that the light dynamic penetration can be well applied in testing the density of coarse sand at shallow coarse-sand back filling subground.