Pseudostatic Analysis of Shallow Strip Footing Resting on Two-Layered Soil
Publication: International Journal of Geomechanics
Volume 18, Issue 3
Abstract
In geotechnical engineering, determination of the bearing capacity of a shallow foundation in nonhomogeneous soil is an intriguing task. In the present study, an effort was made to evaluate the ultimate bearing capacity of shallow strip footing using the limit-equilibrium method in a pseudostatic environment. The foundation rests on two layered soils with varying cohesion, friction, and unit weight. The particle swarm optimization (PSO) algorithm was used to optimize the solution. The failure mechanism was assumed as linearly varying with depth with a different wedge angle at each layer. The bearing capacity of a shallow strip footing in two-layered soil was conveyed as a single coefficient for a coincident resistance of unit weight, surcharge, and cohesion. The effect of various parameters on the variation of bearing-capacity ratio was studied. A comparative study of the present study was applied with respect to different analytical solutions and numerical studies.
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Published In
International Journal of Geomechanics
Volume 18 • Issue 3 • March 2018
Copyright
© 2017 American Society of Civil Engineers.
History
Received: Feb 16, 2017
Accepted: Aug 1, 2017
Published online: Dec 22, 2017
Published in print: Mar 1, 2018
Discussion open until: May 22, 2018
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