Abstract
A simple and easily implemented experimental method, the wak test (wave activated stiffness k test), was proposed by briaud and lepert (asce journal of geotechnical engineering, vol. 116, No. 3, March1990) to estimate, on site, the stiffness of the soil underlying a rigid foundation. The theoretical background of the method is summarized, and the interpretation of the results is explained. Case histories are presented to illustrate the method, its performances, and its potential applications. This paper appears in transportation research record no. 1331, Integrity testing of foundations 1991