Name: MAX CORREIA SARNÁGLIA
Type: MSc dissertation
Publication date: 23/06/2017
Advisor:
Name |
Role |
|---|---|
| PATRÍCIO JOSÉ MOREIRA PIRES | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| PATRÍCIO JOSÉ MOREIRA PIRES | Advisor * |
Summary: Created with the intention of being used as simple and versatile equipment, due to the speed of execution and ease of transportability, the Dynamic Light Probe (PDL) is a geotechnical field test that has been used abroad for several years and is gaining interest in the Brazilian national scenario. However, despite some published work, this method of investigation needs more research, mainly correlating it to classic tests, in which its use is intended, besides consolidating its concepts, to seek greater reliability in its use. Thus, in this study, with contributions from companies in the metropolitan region of Vitória, Espírito Santo, laboratory and field tests were carried out with the objective of comparing the PDL with other tests. In laboratory, with samples of soils molded in metallic cylinders, the PDL, Cone Penetration Test Adapted (CPTAD), California Bearing Ratio (CBR) and Direct Shear tests were performed using two materials with different characteristics, so the tip resistance of PDL test could be confronted and correlated with the CPTAD tip resistance, California Bearing Ratio index and friction angle. The analysis of these results considered different conditions of soil moisture and density. For the field survey, tests were carried out in experimental areas with selected soil characteristics WHERE the PDL and Standard Penetration Test (SPT) were carried out with holes close to each other. The results were correlated through equations obtained from statistical regressions. In the laboratory, the tip resistance of the PDL presented similar results to the CPTAD assay and a great correlation with the CBR. Direct Shear research was limited by the small number of samples but showed positive compatibility between the PDL and the friction angle. The PDL and SPT field results presented a good agreement in some cases and not so good in others.
Keywords: Penetrometer Test, Penetrometer, PDL, CPT, SPT, CBR.
