Author(s)

P.W. Chang & Y.S. Chae

Abstract

Particle packing of granular soils as affected by vibration P.W. Chang", Y.S. Chae& "Department of Agricultural/Civil Engineering, Seoul National University, Korea ^Department of Civil and Environmental Engineering, Rutgers, The State University of New Jersey, USA ABSTRACT The effect of vibration on packing of particles, which determines volume change and density of granular soils, is studied. The laboratory tests were performed to study the variation of particle packing as affected by duration time, acceleration, and frequency for the vibration system; and surcharge, moisture content, and initial density for granular soils. An ideally-graded sand and a uniformly-graded sand were used in the tests. Vibration strongly affects particle packing of granular soils. An attempt is made to explain the mechanism of volume change in dry sands in terms of "air lubrication," analogous to liquefaction. Significant pore air pressure may develop during vibration which is attributable

Keywords