GEOSTATISTICAL ANALYSIS FOR SPATIAL EVALUATION OF LIQUEFACTION POTENTIAL IN SAITAMA CITY
GEOSTATISTICAL ANALYSIS FOR SPATIAL EVALUATION OF LIQUEFACTION POTENTIAL IN SAITAMA CITY
复制标题
埼玉市液化潜力空间评价的地统计分析
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
S. Tachibana
中科院分区：
文献类型：
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作者：
R. Pokhrel;J. Kuwano;S. Tachibana
The liquefaction potential (PL) values within the sedimentary basins are variable within short distances. If PL value does not exist quantitatively at a location of interest then data collected at other locations must be used to estimate the value for the desired locations. The aim of this study is the application of geostatistical method using randomly distributed measured liquefaction potential data to estimate more reliable PL value where measured data is not available. An experimental semivariogram was constructed from these randomly distributed measured locations to characterize the spatial variability of the measured PL value. A model semivariogram curve for isotropic and anisotropic modeling was fitted for the experimental curve to estimate the PL value for the unsampled locations. Using these model curves the potential value for the unsampled locations was estimated. To check the validity of the method and better model the estimated PL value was correlated with the measured PL value at the same locations. The greater R 2 value given by the anisotropic model shows the benifit of anisotropic modeling in liquefaction potential mapping.
