Journal of Materials and Engineering Structures
Volume 13, Numéro 2, Pages 333-341
2026-06-30
Effect Of Elasticity Characteristics On The Deformability Of A Soil Mass During The Excavation Of An Underground Structure.
Authors : Kheffache Toufik . Sedira Rima . Maza Mustapha .
Abstract
The excavation of underground structures, particularly shallow ones, causes significant deformations of the soil mass, potentially leading to instabilities both near the structure and at the surface. Predicting these movements and implementing stabilization measures remains complex due to the numerous factors involved, such as geological, geotechnical, and hydrogeological conditions, as well as the dimensions and depth of the excavation. The soil mass's response depends primarily on its capacity to deform without failure. This work investigates the influence of elasticity parameters on soil deformability during shallow excavation. Finite element modelling enables a parametric analysis of stiffness. The results demonstrate a high sensitivity of displacements to elastic parameters and highlight the need for reliable stiffness estimation to accurately predict soil mass behaviour and ensure the safety of underground structures.
Keywords
Soil ; Excavation ; Elasticity ; Deformations
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