| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the estimation of ground displacement and the determination of ground liquefaction based on various ground data. SOLUTION: In a method of estimating the ground displacement caused by an earthquake, the ground displacement corresponding to a ground characteristic value of a stratum at an objective point with respect to arbitrary earthquake waves is calculated by using a correlation graph between the pre-calculated ground characteristic value and the ground displacement. Herein a relationship between the ground characteristic value with respect to essential earthquake waves and the ground displacement is obtained by a regression analysis based on data plotted on a graph between the ground characteristic values of a plurality of objective points and the ground displacement at the point with respect to the essential earthquake waves, and the ground displacements with respect to the arbitrary earthquake waves at a plurality of model points are obtained by using the ground data of the plotted model points that are approximated by a regression formula obtained from the regression analysis, and the regression analysis is performed again based on the obtained ground displacement and the ground characteristic values at the respective model points, to thereby calculate the correlation graph. COPYRIGHT: (C)2007,JPO&INPIT
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