This study presents the application of geostatistical models to 71 tests conducted with the heavy dynamic penetrometer DPSH Grizzly® over the past seven years in a broad area of the northern sector of Punta Arenas.

This area is characterized by an extensive unit of loose saturated sands that are potentially liquefiable, accompanied by smaller units composed of organic soils and soft clays, locally referred to as “mazacote.”

The geostatistical models allowed the spatial correlation of tip resistance data from the DPSH Grizzly® dynamic penetrometer. Using Kriging geostatistical interpolation estimates, the geotechnical units comprising the study area were identified, as well as the zones most susceptible to liquefaction.

The study was complemented with SPT borehole data, geological and geomorphological maps, and calibrations of the DPSH Grizzly® dynamic penetrometer performed during the execution and review of the tests.