지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Soil properties are not random values which is represented by mean and standard deviation but show spatial correlation. Especially,soils are highly variable in their properties and rarely homogeneous. Thus, the accuracy and reliability of probabilistic analysis results is decreased when using only one random variable as design parameter.
In this paper, to consider spatial variability of soil property, one-dimensional random fields of coefficient of consolidation ( C_v)were generated based on a Karhunen-Loeve expansion. A Latin hypercube Monte Calro simulation coupled with finite difference method for Terzaghi's one dimensional consolidation theory was then used to probabilistic analysis. The results show that the failure probability is smaller when consider spatial variability of C_v than not considered and the failure probability increased when the autocorrelation distance increased. Thus, the uncertainty of soil can be overestimated when spatial variability of soil property is not considered, and therefore, to perform a more accurate probabilistic analysis, spatial variability of soil property needed to be considered.
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참고문헌 (24)
참고문헌 신청
Agterberg, F. B. / 1970 / Autocorrelation function in geology, proceeding of a colloquium on geostatistics / University of Kansas, Lawrence
Baecher, G. B. / 1982 / Simplified Geotechnical Data Analysis, Proc., NATO Advanced Study Inst. on Reliability Theory and Its Application in Struct. and Soil Mech / Martinus Nijhoff Publ
Buckheit, J. B. / 1996 / Statistical applications of adaptive basis selection / 박사 / Stanford university
Christian, J, T / 2004 / Geotechnical engineering reliability: How well do we know what we are doing? / Journal of Geotechnical and Geoenvironmental Engineering 130 (10) : 98
DeGroot, D. J. / 1993 / Estimating Autoconvariance of In-situ Soil Properties / Journal of Geotechnical and Geoenvironmental Engineering 119 (1) : 147 ~ 166
Baecher, G. B. / 1982 / Simplified Geotechnical Data Analysis, Proc., NATO Advanced Study Inst. on Reliability Theory and Its Application in Struct. and Soil Mech / Martinus Nijhoff Publ
Buckheit, J. B. / 1996 / Statistical applications of adaptive basis selection / 박사 / Stanford university
Christian, J, T / 2004 / Geotechnical engineering reliability: How well do we know what we are doing? / Journal of Geotechnical and Geoenvironmental Engineering 130 (10) : 98
DeGroot, D. J. / 1993 / Estimating Autoconvariance of In-situ Soil Properties / Journal of Geotechnical and Geoenvironmental Engineering 119 (1) : 147 ~ 166
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