Prediction of Load-Settlement Curves by the DMT in an Unsaturated Tropical Soil Site
- 31 December 2019
- journal article
- research article
- Published by ABMS - Brazilian Association for Soil Mechanics and Geotechnical Engineering in Soils and Rocks
- Vol. 42 (3), 351-361
- https://doi.org/10.28927/sr.423351
Abstract
Several methods for prediction of the load-settlement curves of shallow foundations have been proposed based on in-situ testing data. However, the good accuracy of such prediction depends on the definition of appropriate soil stiffness. Seasonal variability and its influence on the soil behavior need to be considered for unsaturated tropical soils. In this context, this study uses a procedure to determine the complete load-settlement curves of shallow foundations by the flat dilatometer test (DMT) in an unsaturated tropical soil site, considering seasonal variability. The DMT and the plate load tests carried out at the experimental research site of the University of Sao Paulo (Sao Carlos, Brazil) are presented and discussed. It was found that the DMT is an adequate test for predicting soil stiffness, and the presented procedure allows a good estimate of the complete load-settlement curves. It was also observed that seasonal variability should be considered in the prediction of such curves for the studied site.Keywords
This publication has 8 references indexed in Scilit:
- Seasonal influence on cone penetration test: An unsaturated soil site exampleJournal of Rock Mechanics and Geotechnical Engineering, 2019
- DMT for Load-Settlement Curve Prediction in a Tropical Sandy Soil Compared to Plate Load TestsGeotechnical Testing Journal, 2019
- Influences of Suction on Plate Load Tests on Unsaturated Silty SandsJournal of Geotechnical and Geoenvironmental Engineering, 2018
- Recent Improvements in the Use, Interpretation, and Applications of DMT and SDMT in PracticeGeotechnical Testing Journal, 2018
- Overconsolidation and Stiffness of Venice Lagoon Sands and Silts from SDMT and CPTUJournal of Geotechnical and Geoenvironmental Engineering, 2014
- Developments in elastic settlement estimation procedures for shallow foundations on granular soilKSCE Journal of Civil Engineering, 2010
- Load Testing and Settlement Prediction of Shallow FoundationJournal of Geotechnical and Geoenvironmental Engineering, 2007
- Spread Footings in Sand: Load Settlement Curve ApproachJournal of Geotechnical and Geoenvironmental Engineering, 2007