Discussion of “Seismic active earth pressure behind a nonvertical retaining wall using pseudo-dynamic analysis”

摘要

Ghosh’s note enlarges the range of applicability of thenpseudo-dynamic method, which Choudhury and Nimbalkarn(2006) had already enlarged with the introduction of thenvertical component of the seismic force (Qv) acting on thenthrust wedge. Therefore, it is welcome as an importantncontribution to an approach that aims to overcome the traditionalnpseudo-static method.nThe discusser would like to discuss the direction assumednfor Qv (Fig. 1 in Ghosh). In fact, the author assumesnthat Qv is upwards, and all the calculations shownnin Table 1 and Figs. 2 and 3 of Ghosh were obtained usingnthis hypothesis.