Undrained monotonic response of clean and silty sands

T. G. MURTHY, D. LOUKIDIS, J. A. H. CARRARO, M. PREZZI and R. SALGADO (2007).Ge´otechnique 57, No. 3, 273–288E. Jua´rez-Badillo, Graduate School of Engineering, NationalUniversity of MexicoAfter reading this interesting paper the discusser wastempted to apply the theoretical equations given by theprinciple of natural proportionality to the experimental datacontained in this paper and to gain additional experience onthe common natural parameters corresponding to the un-drained monotonic response of clean and silty sands. Figs 18to 20 show the theoretical equations: pre-peak inverted func-tion Y