Reply to the discussion by P.K. Robertson on “Influence of particle size on the correlation between shear wave velocity and cone tip resistance”1Appears in the Canadian Geotechnical Journal, 49(1): 121–123 [doi: 10.1139/t11-100

Abstract

The authors would first like to thank the discusser for his interest and comments. The paper discussed here (Karray and al. 2011) shows, based on data from the Peribonka and CANLEX projects, that the ratio between shear wave velocity, Vs, and the cone tip resistance, qc, cone penetration test (qc– CPT), increases with increasing mean grain size, D50, in the case of granular material (D50 > 0.2 mm). The discusser indicates, however, that the tendency with D50 is reversed when compared with the relationships proposed by Robertson (2009) and Andrus et al. (2007). Responses to these concerns are discussed in the following.