Comparative study of geotechnical field penetration tests data for sandy subsoils

Abstract

The main objective of this paper was to compare standard penetration test (SPT), dynamic probing (DP) and cone penetrometer test (CPT) data for uniformly graded sandy soils located in southeast Brazilian coastal region named Grande Vitória, Espírito Santo (GV-ES). The study also evaluates previously published datasets of laboratory and field penetration tests data concerning the variations of some soil parameters associated with the investigated correlations. The correlations analysis addressed the influences of textural characteristics, especially grain size distribution, and relative density on obtained CPT-SPT and DP-SPT linear correlations using a newly compiled experimental database for GV-ES sands and previous published datasets. Correlations were determined using statistical inference, specifically by simple linear regression and residues’ analysis in several groups of experimental data.