Geostatistical analysis of spatial variability of the liquefaction potential – Case study of a site located in Algiers (Algeria)

Abstract The city of Algiers (Algeria) is a highly seismic area, and therefore, soil liquefaction poses major concern for structures resting on sandy soil. A campaign 62 static penetration tests or cone penetrometer (CPT) was carried out site located in the commune Dar El Beïda Algiers. Liquefaction Potential Index (LPI) values were assessed, each borehole, based simplified procedure Seed Idriss. On other hand, geographic information system geostatistical analysis used to quantify risk at studied site. It worth mentioning that taken as regionalized variable. In addition, experimental variogram modeled basis spherical model. Also, interpolation LPI unsampled locations performed by Kriging technique using both isotropic anisotropic models. standard deviation maps produced cases. cross-validation showed model exhibited better fit potential. results obtained indicated significant part liable liquefy, particular northwestern region study area. findings suggest there proportional relationship between increase decrease acceleration.