EXPERIMENTAL AND 3D NUMERICAL MODELING OF TUNIS SOFT
SOIL SETTLEMENT
Aya Rezgui , Lasaad Ajam , and Belgacem Jalleli
Université de Tunis El Manar – Ecole Nationale d’Ingénieurs de Tunis, LR14ES03-Ingénierie Géotechnique, BP 37 Le
Belvédère, Tunis, Tunisia
Keywords:, Tunis soft soil, settlement, FLAC3D modeling, one dimensional consolidation test
,experimental results
ABSTRACT: The soft soils of Tunis are considered a difficult challenge for construction sites
and geotechnical works. Characterized by a soft clay, Tunis silt can exhibit significant
settlements under loads. These settlements are likely to occur slowly due to the low vertical
permeability of this mud. Pore water moves slowly, resulting in long-term consolidation
settlement. The present contribution concerns the development of a numerical model to predict
settlement measurements of the Tunis soft soil under oedometer conditions. The 3D numerical
results of the consolidation will be compared with those obtained experimentally.