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http://dx.doi.org/10.14481/jkges.2021.22.11.5

Comparison of Liquefaction Probability Map Regarding with Geotechnical Information and Spatial Interpolation Target  

Song, Seongwan (Department of Civil & Environmental Engineering, Dankook University)
Hwang, Bumsik (Safety Innovation & Disaster Prevention Division, Korea Expressway Corporation Research Institute)
Cho, Wanjei (Department of Civil & Environmental Engineering, Dankook University)
Publication Information
Journal of the Korean GEO-environmental Society / v.22, no.11, 2021 , pp. 5-13 More about this Journal
Abstract
The interest of expecting the liquefaction damage is increasing due to the liquefaction in Pohang in 2017. Liquefaction is defined as a phenomenon that the ground can not support the superstructure due to loss of the strength of the ground. As an alternative against this, many studies are being conducted to increase the precision and to compose a liquefaction hazard map for the purpose of identifying the scale of liquefaction damage using the liquefaction potential index (LPI). In this research, in order to analyze the degree of precision with regard to spatial interpolation objects such as LPI value and geotechnical information for LPI determination, liquefaction hazard map were made for the target area. Furthermore, based on the trend of precision, probability value was analyzed using probability maps prepared through qualitative characteristics. Based on the analysis results, the precision of the liquefaction hazard map setting the spatial interpolation object as geotechnical information is higher than that as LPI value. Furthermore, the precision of the liquefaction hazard map does not affect the distribution of the probability value.
Keywords
Liquefaction; LPI; Liquefaction damage prediction; Liquefaction hazard map; Liquefaction probability map;
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