Abstract

RUGE CARDENAS, Juan Carlos; PINTO DA CUNHA, Renato  and  RONDON QUINTANA, Hugo Alexánder. SIMULATION OF LOAD TESTS IN PILES USING A HYPOPLASTIC CONSTITUTIVE MODEL. Rev.EIA.Esc.Ing.Antioq [online]. 2014, n.21, pp.171-183. ISSN 1794-1237.

This paper presents a numerical simulation based in a FEM program related with the results of a pile load test conducted on porous clay from Brasilia DF (Brazil), which has metastable characteristics. The numerical modeling used as reference model a hypoplastic constitutive model. The analysis of the results of laboratory tests, allowed estimating soil geotechnical properties and parameters of strength, deformability and stratigraphic identification. As a general conclusion it's important to highlight that the hypoplastic prediction in the linear range, reproduce of an adequate way the tendency in the load-settlement curve, however due to the loss of adhesion in the soil-pile interfase, at the time of the test, it shows the incapability of the model to simulate this effect appropriately, since in the geotechnical problem exist unsaturated and metastability conditions.

Keywords : Load Tests; piles; Simulation; Hypoplasticity.

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