Análise numérica e experimental do comportamento tensão-recalque de solos da formação barreira

Abstract

The objective of the present study is to evaluate the stress-settlement behavior of Barreiras Formation soil through numerical simulations based on the Finite Elements Method. It was performed four plate test simulations based on the studies of Morais (2011), Falcão (2014) and Barreto (2015) on the Federal University of Alagoas Experimental Geotechnics Camp. The results were evaluated by comparing the similarities between the stress-settlement curves and the percentual difference between the allowable bearing capacity and the maximum allowable settlement obtained through simulations and the plate load tests executed by Falcão (2014) and Barreto (2015). The soil behavior presented by the simulations 1, 3 and 4 were similar by the ones obtained experimentally, resulting in similar curves and small percentual differences of the maximum allowable settlement and allowable bearing capacity. The second simulation presented great divergences between the two curves, resulting in higher settlement values. Therefore, it was concluded that the consistency between three of the four simulations presented by the software Plaxis 2D expressed a great alternative to simulate the stress-settlement behavior of the barreiras formations soil.