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Seismic passive resistance in soils for negative wall friction

Choudhury, Deepankar and Rao, Subba KS (2002) Seismic passive resistance in soils for negative wall friction. In: Canadian Geotechnical Journal / Revue Canadienne de Géotechnique, 39 (4). pp. 971-981.

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Official URL: http://www.nrcresearchpress.com/doi/abs/10.1139/t0...

Abstract

: In the presence of pseudo-static seismic forces, passive earth pressure coefficients behind retaining walls were generated using the limit equilibrium method of analysis for the negative wall friction angle case (i.e., the wall moves upwards relative to the backfill) with logarithmic spirals as rupture surfaces. Individual density, surcharge, and cohesion components were computed to obtain the total minimum seismic passive resistance in soils by adding together the individual minimum components. The effect of variation in wall batter angle, ground slope, wall friction angle, soil friction angle, and horizontal and vertical seismic accelerations on seismic passive earth pressures are considered in the analysis. The seismic passive earth pressure coefficients are found to be highly sensitive to the seismic acceleration coefficients both in the horizontal and the vertical directions. The results are presented in graphical and tabular formats.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to NRC Research Press.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 28 Jul 2011 07:11
Last Modified: 28 Jul 2011 07:11
URI: http://eprints.iisc.ernet.in/id/eprint/39396

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