Author(s)

L. Liang, J. Ludwig Figueroa & A.S. Saada

Abstract

Earthquakes cause liquefaction in sands of low to medium relative density. The hollow cylinder torsional shear device has been used in the laboratory to study this phenomenon; and in particular the effect of strain on the onset of liquefaction. To examine the influence of the various parameters affecting the development of liquefaction a series of undrained torsional shear tests were conducted on long, thin hollow cylinders of sand at several relative densities, confining pressures and sinusoidally applied shear strain amplitudes. An analysis of variance was used to study the interaction among the various parameters influencing liquefaction. The shear strain amplitude was found to have a significant influence on the pore water pressure development; and its relation to the number of cycle

Keywords