한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2004년도 춘계학술발표회
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- Pages.722-729
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- 2004
액상화된 지반의 점성 유체 특성과 그 흐름이 말뚝의 거동에 미치는 영향 분석
Viscous fluid characteristics of liquefied soils and behavior of pile subjected to flow of liquefied soils
- Hwang, Jae-Ik (School of Civil Urban & Geosystem Engineering Department, Seoul National University) ;
- Kim, Chang-Yeob (School of Civil Urban & Geosystem Engineering Department, Seoul National University) ;
- Chung, Choong-Ki (School of Civil Urban & Geosystem Engineering Department, Seoul National University) ;
- Kim, Myoung-Mo (School of Civil Urban & Geosystem Engineering Department, Seoul National University)
- 발행 : 2004.03.25
초록
The horizontal movement of sloping ground due to flow liquefaction has caused many pile foundations to fail, especially those in ports and harbor structures. In this study, a virtual case is assumed in which flow liquefaction is induced by earthquake loads in a fully saturated infinite sand slope with a single pile installation. Under the assumption that the movement of liquefied ground is viscous fluid flow, the influence of ground movement due to flow liquefaction on the pile behavior was analyzed. Since the liquefied soil is assumed as a viscous fluid, its viscosity must be evaluated, and the viscosity was estimated by the dropping ball method ,md the pulling bar method. Finally, the influence of the flow of liquefied soil on a single pile installed in an infinite slope was analyzed by a numerical method.