Discussion of “High-Modulus Columns for Liquefaction Mitigation” by James R. Martin II, C. Guney Olgun, James K. Mitchell, and H. Turan Durgunoğlu.

The article presents a commentary of the article "High-Modulus Columns for Liquefaction Mitigation," by James R. Martin II, C. Guney Olgun, James K. Mitchell, and H. Turan Durgunoglu. It aims to comment on the data and analysis for areas of the site where the stiff columns were not installed and where significant compression was observed in silt and clay layers. It stresses that data given by the researchers are insufficient enough which caused confusion on the issue that behavior of silts and clays at the Carrefour site was related to the "Chinese criteria," the criteria classifying silts and clay as being nonliquefiable if they exceed certain values of plasticity and if the percentage of clay size particles and their water contents are below certain specified values.