Numerical Simulations of K0 Triaxial Tests on Collapsible Porous Clay By J.C. Ruge, A. López, F.A. Molina-Gómez, R.P da Cunha and J.E. Colmenares

Geotechnical Engineering Journal of the SEAGS & AGSSEA ISSN 0046-5828

Vol. 49 No.3 September 2018

Numerical Simulations of K0 Triaxial Tests on Collapsible Porous Clay
By J.C. Ruge, A. López, F.A. Molina-Gómez, R.P da Cunha and J.E. Colmenares

ABSTRACT: This paper addresses numerical simulations of K0 triaxial tests performed using a single element program. The methodology was based on construction of numerical models with three different constitutive models in order to represent the soil behaviour during stress path states. The constitutive models used were (i) the Mohr-Coulomb, (ii) the Cam-Clay, and (iii) a hypoplastic model. The material used was a collapsible porous Brazilian clay. The values obtained were compared and calibrated with experimental data. Results show that it is possible to assess soil behaviour via a single element program and that triaxial K0 stress path tests can be simulated with numerical methods. Results show that it is possible to replicate and calibrate soil behaviour under zero lateral displacement using computational tools.

Keywords: Constitutive models, K0 Triaxial tests, Numerical test simulation, Single element program, Stress path