Statistical Analysis of Cone Penetration Tests and Soil Engineering Parameters at the National Geotechnical Experimentation Clay Site, Texas AM University

摘要

Cone Penetration Testing (CPT) is a fast and economical in-situ investigationmethod for evaluating soil strata at a site in terms of soil classification and soilengineering parameters via established correlations. The National GeotechnicalExperimentation Sites (NGES) provide extensive sets of CPT data, as well as theresults from alternate in-situ tests and laboratory measurements conducted on soilsamples obtained from these sites. These sets of data can be utilized to study differentaspects of the applicability of CPT in geotechnical engineering. This paper attemptsto assess the spatial variability of the CPT readings at the NGES clay site at TexasA&M University. An effort is also made to review the reliability of different CPTbasedcorrelations from multiple statistical data analysis tools and comparison withthe laboratory measured values of the selected soil engineering parameters at the site.