Various liquefaction vulnerability indices (LVIs) have been proposed to quantify the severity of liquefaction, and used to create the liquefaction hazard map. In producing the liquefaction hazard map, the spatial variability of LVI is important because the number of available in-situ data is typically limited, and the values at the unmeasured locations are predicted using kriging operations that consider the spatial correlation of observed values. In addition, the liquefaction hazard map may vary significantly depending on how LVI was spatially interpolated. This study aims to evaluate the spatial variability of soil properties based on cone penetration test (CPT) data, and to investigate the changes in geostatistical properties of LVIs depending on shaking intensity. A simplified CPT-based procedure was used to calculate the factor of safety against liquefaction, and the geostatistical properties of LVI according to shaking intensity were evaluated using the parameters of semivariogram. In addition, the LVIs at unmeasured locations were predicted using two geostatistical modeling approaches, and their results were compared to investigate the accuracy of geostatistical approaches in predicting LVIs according to the peak ground acceleration (PGA).
Geostatistical Properties of Liquefaction Vulnerability Index for Reclaimed Land in South Korea
KSCE J Civ Eng
KSCE Journal of Civil Engineering ; 25 , 6 ; 1998-2009
2021-06-01
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Land Reclamation and Settlement of Reclaimed Land for New Ports
TIBKAT | 2019
|Online Contents | 2009
Online Contents | 2010
Online Contents | 1994