Geotechnic parameters análisis obtained by pencel presuremeter test on clayey soils in Resistencia

Abstract

The Resistencia city has characteristic geomorphological environments of river valleys, mainly due to the influence of the Parana River and its tributaries. In many areas there is high heterogeneity of geotechnical profiles, sedimentary clayey, silt and sand soils, and water table near the ground surface. This brings many problems for designing and construction of engineering works, including low soil bearing capacity for the project of foundations and higher construction costs. To analyze the behavior under load of these soils, geotechnical engineering practice in the region commonly used field tests like the standard penetration test (SPT) and the cone penetration test (CPT). In order to improve the quality of the studies being conducted in the area, it is analyzed in this study the use of the pencel pressuremeter test (PPMT), which allows a stress-strain curve of soil in situ. It has been considered to use this test because the equipment and the test procedure are relatively inexpensive to incorporate into engineering practice. As the use of this type of pressuremeter test is relatively recent, this study has the objective to validate their results by comparing them with correlations available in the literature between CPT and traditional pressuremeter tests. The results indicate that the geotechnical parameters obtained through pencel pressuremeter test are consistent with the correlations available in the international literature. Although the universe of data analyzed is small and should be extended, preliminary results are favorable on the potential use of the pencel pressuremeter test for geotechnical studies in the region.