Behavior of Slopes under Multiple Adjacent Footings and Buildings
Publication: International Journal of Geomechanics
Volume 18, Issue 7
Abstract
This article examines the response of soil slopes under adjacent embedded strip foundations, subjected to increasing vertical load due to the gravity load of buildings. The study also considers slopes under closely spaced adjacent buildings. In addition, the article addresses the effects of horizontal earthquake loading using the simplified pseudostatic method. The response of two representative slopes was investigated using nonlinear two-dimensional finite element limit analysis with a strength reduction method. The effects of interaction between building, foundation, and slope on the sliding surface, factor of safety (FOS), and ultimate load intensity (ULI) were explored. Furthermore, the effects of integral action of building frame on slope-building interaction were investigated. It was found that the buildings/foundations mostly result in local failure of stable slopes under gravity and seismic loads. Consequently, the slope's FOS was found to be sensitive to foundation loading intensity, but in most of the considered cases it was insensitive to the number and distance between adjacent foundations and buildings.
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Acknowledgments
The research work presented here was supported by an Institute fellowship to the first author from the Ministry of Human Resource Development, Government of India. The authors are grateful to Optum Computational Engineering (OptumCE) for providing a free academic license for OptumG2 to perform the present study.
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Published In
International Journal of Geomechanics
Volume 18 • Issue 7 • July 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Jun 7, 2017
Accepted: Nov 14, 2017
Published online: Apr 23, 2018
Published in print: Jul 1, 2018
Discussion open until: Sep 23, 2018
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