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NTIS 바로가기韓國地盤工學會論文集 = Journal of the Korean geotechnical society, v.33 no.5, 2017년, pp.25 - 35
봉태호 (오레곤 주립대학교 토목건설공학과) , 김병일 (명지대학교 토목환경공학과)
Liquefaction is one of the major seismic damage, and several methods have been developed to evaluate the possibility of liquefaction. Recently, a probabilistic approach has been studied to overcome the drawback of deterministic approaches, and to consider the uncertainties of soil properties. In thi...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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지진에 의한 피해 중 지반에서 발생하는 대표적인 형태는? | 이에 따라 우리나라도 더이상 지진에 대한 안전지대가 아니며 이에 대한 대비가 필요하다는 사회적 목소리가 확산되고 있다. 지진에 의한 피해 중 지반에서 발생하는 대표적인 형태는 액상화(liquefaction)로, 액상화가 발생하게 되면 지반은 전단 강도를 거의 상실하게 되며 이로 인하여 상부 구조물의 파괴나 부등침하, 측방유동, 제방붕괴 등 큰 피해를 가져올 수 있다. | |
액상화가 발생하게 되면 어떠한 피해를 발생시킬 수 있는가? | 이에 따라 우리나라도 더이상 지진에 대한 안전지대가 아니며 이에 대한 대비가 필요하다는 사회적 목소리가 확산되고 있다. 지진에 의한 피해 중 지반에서 발생하는 대표적인 형태는 액상화(liquefaction)로, 액상화가 발생하게 되면 지반은 전단 강도를 거의 상실하게 되며 이로 인하여 상부 구조물의 파괴나 부등침하, 측방유동, 제방붕괴 등 큰 피해를 가져올 수 있다. | |
액상화 가능성 평가기법에 가장 일반적으로 활용되는 방법은 무엇인가? | 지금까지 액상화의 가능성을 평가하기 위한 수많은 연구들이 이루어져 오고 있으며, 다양한 시험결과를 통한 액상화 가능성 평가기법이 제안되었다. 특히, 표준관입시험(Standard Penetration Test, SPT)과 콘관입시험(Cone Penetration Test, CPT)을 통한 액상화 평가 기법에 대한 많은 연구들이 수행되었으며, 가장 일반적으로 활용되고 있는 방법이다. SPT기반 액상화 평가는 Seed and Idriss(1971)에 의하여 간이평가기법이 개발되었으며, 아직까지 SPT를 활용한 다양한 액상화 평가기법의 기반이 되고 있다. |
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