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http://dx.doi.org/10.7843/kgs.2018.34.5.19

Regional Assessment of Seismic Site Effects and Induced Vulnerable Area in Gyeonggi-do, South Korea, Using GIS  

Kim, Han-Saem (Earthquake Research Center, Korea Institute of Geoscience and Mineral Resources)
Sun, Chang-Guk (Geological Research Division, Korea Institute of Geoscience and Mineral Resources)
Cho, Hyung-Ik (Earthquake Research Center, Korea Institute of Geoscience and Mineral Resources)
Nam, Jee-Hyun (Office of Urban Planning & Housing Policy Research, Gyeonggi Research Institute)
Publication Information
Journal of the Korean Geotechnical Society / v.34, no.5, 2018 , pp. 19-35 More about this Journal
Abstract
The necessity of predicting the spatial information of the site-specific seismic response, which is essential information for the comprehensive earthquake disaster countermeasures, is increasing for the mid-west urban areas where the earthquake-induced damages can be increased due to frequent occurrence of mid-scale earthquake such as 2016 Gyeongju Earthquake and 2017 Pohang Earthquake. Especially, researches on strategic securing of site survey datasets and understanding the site-specific site response characteristics were conducted for Gyeonggi-do, South Korea. In this study, a GIS-based framework for site-specific assessment of site response and induced vulnerable area in Gyeonggi-do, South Korea was proposed. Geo-Data based on GIS platform was constructed for regional estimation of geotechnical characteristics by collecting borehole and land coverage datasets. And the geo-spatial grid information was developed for deriving spatial distribution of geotechnical layer and site response parameters based on the optimization of the geostatistical interpolation method. Accordingly, base information for Improving earthquake preparedness measures was derived as seismic zonation map with administrative sub-units considering the quantitative site effect of Gyeonggi-do.
Keywords
Seismic site effect; Geo-data; Gyeonggi-do; Site-specific assessment; Seismic response parameter;
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