Characterizing Liquefaction Resistance Of Soil and Improvement using single parameters

Abstract

Abstract— Liquefaction hazard evaluation involves liquefaction susceptibility analysis, liquefaction potential evaluation, assessment of effect of liquefaction and study of response of various foundations in liquefied soil. These are the major concerns of Geotechnical engineers. In the present study the focus is on liquefaction potential evaluation for determination of the likelihood of liquefaction triggering in a soil in a given earthquake. A review of the various liquefaction potential evaluation methods are presented in this chapter. In the present section, application of various methods for liquefaction susceptibility analysis is discussed in International and natural scenario. In this research, assessment of liquefaction of soils by various approaches have been reviewed and presented in chronological order. The study focused on procedural requirements and assessment for conventional and computational methods. Simplified method given by Seed, Tokimatsu-Yoshimi (T-Y) and Idriss & Boulanger methods of liquefaction assessment have been reviewed which was analyzed in the history. Computational methods are also discussed as capable in liquefaction assessment using database from SPT results. Conventional methods with extended application using concept of correction factors were induced in the analysis. Taking on familiarity from past literatures all methods were critically reviewed, and measures are established