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http://dx.doi.org/10.7843/kgs.2020.36.4.17

Feasibility Study for Revision of Domestic Liquefaction Evaluation Criteria by Analyzing the Liquefaction Phenomenon Caused by the Pohang Earthquake  

Ha, Ik-Soo (Dept. of Civil Engrg., Kyungnam Univ.)
Oh, I-Tae (Dept. of Civil Engrg., Kyungnam Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.36, no.4, 2020 , pp. 17-30 More about this Journal
Abstract
In this study, liquefaction evaluation was performed by applying liquefaction evaluation criteria commonly applied in Korea and recently revised evaluation criteria to five sites where liquefaction was observed or potential for liquefaction was high during the 2017 Pohang earthquake. The purpose of this study is to examine the validity of the revised domestic liquefaction evaluation criteria by comparing and reviewing the results of the theoretical liquefaction evaluation with the actual liquefaction occurrence at the sites. For the analysis of earthquakes for the evaluation of the liquefaction, the actual Pohang earthquake wave, as well as the waves that was conventionally used in Korea, was used. The magnitude of the peak ground acceleration of analysis earthquake varied from 0.097 g to 0.2713 g. From the analysis results, the validity of the liquefaction evaluation criteria presented in the 2016 Foundation Design Criteria, which has been commonly applied in Korea, was evaluated. From the evaluation results, the improvement of the existing criteria was suggested, and the suitability of revised items of liquefaction evaluation criteria presented in the Seismic Design General established in 2018 was confirmed.
Keywords
Liquefaction; Liquefaction evaluation; Pohang earthquake; Liquefaction evaluation criteria; Earthquake;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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