“…This study was then extended by Booker and Small for general surface loading (circular, strip, and square) and different surface (pervious/impervious) and base (smooth/rigid) conditions. The applications of Biot's theory are too numerous to be cited in their entirety; the reader is referred to review articles and volumes by Scheidegger , Paria , Zaretskii , Schiffman , Detournay and Cheng , Coussy , Selvadurai , de Boer , and Ehlers and Bluhm for further references.…”