Correlations of SPT, CPT and PMT Tests along Lakeshore and Don River Corridors in Toronto, Canada

ABSTRACT: Several Standard Penetration Tests (SPT), Cone Penetration Tests (CPT) and Pressuremeter Tests (PMT) were recently carried out along the Lakeshore and Don River corridors in the Greater Toronto Area, Canada. These tests were carried out in pairs at a general spacing guideline of 3 to 5 m to ensure that the same stratum was tested while avoiding interference between each test. This paper presents the correlations between the measured SPT, CPT and PMT test results for different types of soil with same gradation and plasticity. The results have been used to evaluate the effect of mean grain size, fines content and plasticity which are known to affect the relations of the SPT, CPT and PMT values. The test data have been compared to the available correlations in literatures, including CPT to SPT ratio versus mean particle size plot presented in the Canadian Foundation Engineering Manual. Finally, the applications of the existing correlations in literatures and their limitations to the test data have been discussed.