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Liquefaction Hazard Map Based on in Pohang Under Based on Earthquake Scenarios

지진시나리오 기반의 포항지역 액상화위험도 작성 연구

  • Received : 2018.02.28
  • Accepted : 2018.04.26
  • Published : 2018.04.30

Abstract

The The purpose of this study is to investigate the actual liquefaction occurrence site in Pohang area and to analyze the ground characteristics of Pohang area using the data of the National Geotechnical Information DB Center and to calculate the liquefaction potential index. Based on the results, the distribution of soil classification in Pohang area and the risk of liquefaction under various earthquake accelerations were prepared. As a result of the study, soils in Pohang has the soil characteristics that can cause the site amplification phenomenon. In the analysis through liquefaction hazard maps under earthquake scenarios, it is found that the liquefaction occurred in the area of Heunghae town is more likely to be liquefied than other areas in Pohang. From these results, it is expected that the study on the preparation of liquefaction hazard maps will contribute to the preparation of countermeasures against liquefaction by predicting the possibility in the future.

Keywords

Liquefaction potential index;Distribution of soil type in Pohang;Liquefaction hazard map in Pohang

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Acknowledgement

Supported by : 행정안전부