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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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In this study, a simple probabilistic approach using equivalent coefficient of consolidation (ce) was proposed to consider the spatial variability of coefficient of vertical consolidation (cv), and the effect of the probability distribution of coefficient of consolidation on degree of consolidation in heterogeneous soil was investigated. The statistical characteristics of consolidation coefficient were estimated from 1,226 field data, and four probability distributions (Normal, Log-normal, Gamma, and Weibull) were applied to consider the effect of probability distribution. The random fields of coefficient of consolidation were generated based on Karhunen-Loeve expansion. Then, the equivalent coefficient of consolidation was calculated from the random field and used as the input value of consolidation analysis. As a result, the probabilistic analysis can be performed effectively by separating random field and numerical analysis, and probabilistic analysis was performed using a Latin hypercube Monte Carlo simulation. The results showed that the statistical properties of ce were changed by the probability distribution and spatial variability of cv, and the probability distribution of cv has considerable effects on the probabilistic results. There was a large difference of failure probability depend on the probability distribution when the autocorrelation distance was small (i.e., highly heterogeneous soil). Therefore, the selection of a suitable probability distribution of cv is very important for reliable probabilistic analysis of consolidation.
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참고문헌 (30)
참고문헌 신청
봉태호 / 2012 / 압밀계수의 공간변동성에 따른 압밀도의 확률론적 해석 / 한국농공학회논문집 54(3):55~63
Taeho Bong / 2014 / Probabilistic analysis of consolidation that considers spatial variability using the stochastic response surface method / Soils and Foundations 54(5):917~926
Taeho Bong / 2017 / Spatial Variability of CPT Parameters and Silty Fines in Liquefiable Beach Sands / Journal of Geotechnical and Geoenvironmental Engineering 143(12):04017093
Sung Eun Cho / 2010 / Probabilistic Assessment of Slope Stability That Considers the Spatial Variability of Soil Properties / Journal of Geotechnical and Geoenvironmental Engineering 136(7):975~984
John T. Christian / 2004 / Geotechnical Engineering Reliability: How Well Do We Know What We Are Doing? / Journal of Geotechnical and Geoenvironmental Engineering 130(10):985~1003
Taeho Bong / 2014 / Probabilistic analysis of consolidation that considers spatial variability using the stochastic response surface method / Soils and Foundations 54(5):917~926
Taeho Bong / 2017 / Spatial Variability of CPT Parameters and Silty Fines in Liquefiable Beach Sands / Journal of Geotechnical and Geoenvironmental Engineering 143(12):04017093
Sung Eun Cho / 2010 / Probabilistic Assessment of Slope Stability That Considers the Spatial Variability of Soil Properties / Journal of Geotechnical and Geoenvironmental Engineering 136(7):975~984
John T. Christian / 2004 / Geotechnical Engineering Reliability: How Well Do We Know What We Are Doing? / Journal of Geotechnical and Geoenvironmental Engineering 130(10):985~1003
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