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1 2020

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Model experiments to assess effect of cavities on bearing capacity of two interfering superficial foundations resting on granular soil

Saadi Djamel, Abbeche Khelifa, Boufarh Rafik

Studia Geotechnica et Mechanica

2020

Vol. 42, nr 3

222--231

The objective of this paper is to describe the effect of cavities on the bearing capacity of two interfering footings based on granular soil using an exclusively experimental approach with a test model designed in the laboratory. The experimental protocol was carried out based on the variation of several parameters such as the spacing (x) (axis to axis) between the footings, and the distance (H) between the footings and cavities and between the cavities axes (L). The results highlight the effect of cavities and the interference of two strip footings on the bearing capacity factor (q) and efficiency factor (EF). Moreover, the results revealed that, in the case wherein the distance between the footings and the cavity is greater than 3, the cavity impact is eliminated.