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http://dx.doi.org/10.14481/jkges.2020.21.1.13

Liquefaction Assessment Variations with Regard to the Cyclic Resistance Ratio Estimation Methods  

Song, Sungwan (Department of Civil & Environmental Engineering, Dankook University)
Kim, Hansaem (Earthquake Research Center, Korea Institute of Geoscience and Mineral Resources)
Cho, Wanjei (Department of Civil & Environmental Engineering, Dankook University)
Publication Information
Journal of the Korean GEO-environmental Society / v.21, no.1, 2020 , pp. 13-19 More about this Journal
Abstract
Recently, as the number of earthquakes increases in the Korean Peninsula and surrounding area, the importance of earthquake countermeasures and seismic design has been increasing. As a result, interest and concerns about liquefaction, which is one of the problems that concern the earthquake, are increasing. There are various methods that can assess the possibility of liquefaction by using geotechnical information for specific ground. However, direct comparisons of each method are not yet available. In this study, the two methods using the SPT-N value and the shear wave velocity among the methods for estimating the Cyclic Resistance Ratio (CRR) value required for the simplified liquefaction assessment method were compared. And the correction of the ground information required to use the two methods respectively was compared. As a result, more accurate evaluation results were obtained when the CRR value is calculated using the SPT-N values.
Keywords
Seismic design; Liquefaction; Ground information; Liquefaction evaluation; CRR value; SPT-N value; Shear wave velocity; Correction of N value;
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