ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 9

Shear-Wave Velocity to Determine Vertical Stress Share on Column-Sand Samples

Blewett, J
Research Associate, Heriot-Watt University, Riccarton, Edinburgh,

Woodward, PK
Lecturer, Heriot-Watt Unjversity, Riccarton, Edinburgh,

(Received 31 July 2000; accepted 7 September 2001)

Abstract

The increased rigidity of vibro-replacement stone columns in liquefiable soils offers the potential for liquefaction mitigation. This paper proposes a laboratory method to facilitate an investigation of this parameter. Shear-wave velocity data are used to obtain the vertical load distribution between loose sand and gravel column in composite columnar triaxial samples under static and cyclic loading. Significant reductions in cyclic stresses applied to the loose sand are obtained, offering the potential for the optimization of the design of vibro-systems to include load share benefits.

Keywords:
liquefaction, ground improvement, shear-wave velocity, laboratory tests

Paper ID: GTJ11358J
DOI: 10.1520/GTJ11358J
ASTM International is a member of CrossRef.