Erginağ, Uğur CanKayalar A.S.2023-06-162023-06-1620169.78E+121098-6189https://hdl.handle.net/20.500.14365/3899et al.;ExxonMobil;International Society of Offshore and Polar Engineers (ISOPE);Korea Research Institute of Ships and Ocean Engineering (KRISO);Shanghai Jiao Tong University;SK Innovation26th Annual International Ocean and Polar Engineering Conference, ISOPE 2016 -- 26 June 2016 through 1 July 2016 -- 123420High modulus columns have become general engineering practice in terms of liquefaction mitigation although their effectiveness has not been validated thoroughly by both case and numerical analyses. Besides, only total stress analyses that do not take excess pore water pressure into account widely form numerical studies. Thus, in this study, role of high modulus columns as a precaution are investigated parametrically with intensive numerical analyses scheme adopting effective stress approach. It is indicated that high modulus columns can prevent liquefaction by decreasing pore pressure ratio. Their effectiveness increases with decrease of stiffness. © Copyright 2016 by the International Society of Offshore and Polar Engineers (ISOPE).eninfo:eu-repo/semantics/closedAccessEffective stress approachFinite difference methodFinn modelHigh modulus columnsLiquefactionNonlinear analysisPore pressure ratioLiquefactionNonlinear analysisNumerical analysisPore pressure3d finite differencesEffective stressExcess pore water pressureGeneral engineeringPore pressure ratiosFinite difference methodConference Object2-s2.0-84987889982