<strong>Indraratna, Sathananthan, Iyathurai, Buddhima, Rujikiatkamjorn, and Cholachat (2007).</strong> “Evaluation of Smear Zone Extent Surrounding Mandrel Driven Vertical Drains Using the Cavity Expansion Theory.” International Journal of Geomechanics, 15323641, Nov/Dec2008, Vol. 8, Issue 6