Finite Element Investigation on the Bearing Capacity of a Strip Footing in a c-φ Soil Over a Rigid Layer

• Published in: Transportation infrastructure geotechnology 2024-08, Vol.11 (4), p.1415-1428
• Main Authors: Asadi, Abolfazl, Vali, Ramin
• Format: Article
• Language: English
• Subjects: Bearing capacity; Building Materials; Civil engineering; Cohesion; Cohesive soils; Engineering; Experimental methods; Failure modes; Finite element analysis; Finite element method; Footings; Foundations; Friction; Geoengineering; Geotechnical Engineering & Applied Earth Sciences; Geotechnology; Hydraulics; Infrastructure; Internal friction; Research methodology; Simulation; Soft soils; Soil; Soil bearing capacity; Soil investigations; Soil layers; Soil strength; Strip; Technical Note
• ISSN: 2196-7202; 2196-7210
• DOI: 10.1007/s40515-023-00356-5

In this paper, the impact of a rigid layer on the bearing capacity of a strip footing in cohesive and frictional soils is investigated. The presence of a rigid layer has been found to effectively reduce vertical displacements. However, the effect of a rigid layer on the ultimate bearing capacity of the strip footing is complex, particularly in cohesive soils. The finite element method is utilized to investigate the impact of soil strength and geometric parameters. Results indicate that variations in the bearing capacity to the depth of the rigid layer ( H / B ) are more notable in cohesive soils compared to frictional soils. As such, the increase in the bearing capacity of a strip footing in cohesive soils surpasses that in frictional soils, for H / B