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NTIS 바로가기韓國地盤工學會論文集 = Journal of the Korean geotechnical society, v.36 no.9, 2020년, pp.21 - 32
황병윤 (서울대학교 건설환경공학부) , 한진태 (한국건설기술연구원) , 김종관 (한국건설기술연구원) , 곽태영 (한국건설기술연구원)
In this study, series of cyclic triaxial tests and shear velocity measurement were conducted using Pohang sand, which was taken from liquefaction observed area, to verify the liquefaction characteristics of Pohang. The cyclic resistance ratio(CRR) was derived based on the test results. A specimen wa...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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지반의 액상화에 대한 저항력 평가법 중, 국내에서는 어떤 연구가 주로 진행되었는가? | 국내의 경우, 반복직접단순전단시험을 이용한 연구가 주로 진행되었으며, 진동삼축시험을 통한 연구도 함께 수행되었다. Mandokhail et al. | |
국내에서 2017년 기기 계측 최초로 액상화 현상이 관측되었던 곳은? | 일본, 미국, 중국, 뉴질랜드 등 다양한 국가에서 지진으로 인한 액상화 현상이 보고되었으며(Idriss and Boulanger, 2008), 이로 인해 막대한 규모의 인명 및 재산 피해가 발생하였다. 국내에서도 2017년 포항 지역에서 발생한 규모 5.4의 지진으로 인해 기기 계측 최초로 액상화 현상이 관측되었다. | |
액상화는 어떤 현상인가? | 지진 발생 시에 포화된 모래 지반에서 순간적인 충격이나 진동으로 인해 과잉간극수압이 증가함에 따라 유효응력이 감소하여, 최종적으로 모래가 액체와 같이 거동하는 현상을 액상화(liquefaction)라 정의한다. 일본, 미국, 중국, 뉴질랜드 등 다양한 국가에서 지진으로 인한 액상화 현상이 보고되었으며(Idriss and Boulanger, 2008), 이로 인해 막대한 규모의 인명 및 재산 피해가 발생하였다. |
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