DBPapers
DOI: 10.5593/SGEM2014/B12/S2.126

THREE DIMENSIONAL ORTHOTROPIC CONSOLIDATION MODEL FOR WELL POINT NETWORKS

D. M. Manoli, A. Priceputu, C. Ungureanu, A. Andronic
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 987-994 pp

ABSTRACT
Accurate prediction of settlement, both in terms of magnitude and evolution in time may be considered the decisive design factor for large load civil engineering works such as embankments, multi-storey buildings and so on. This goal is difficult to achieve both from the numerical description point of view and the input mechanical parameters. The key divergence points between numerical modelling and recorded measurements refer mainly to the non-linearity of the stress-strain behaviour and the transient flow formulation for low permeability soils. On the other hand the soil anisotropy induces computation deviations especially in the cases of radial or three dimensional consolidation. The model used in this paper deals with the aforementioned problems using Biot’s equation [1] with a non-linear stress-strain law and different permeability coefficients for vertical and horizontal directions.

Keywords: Biot, radial consolidation, settlement, numerical model