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Reliability Based Seismic Stability of Soil Slopes

Babu, Sivakumar GL and Murthy, Satyanarayana D (2003) Reliability Based Seismic Stability of Soil Slopes. In: Indian Geotechnical Journal, 33 (3). pp. 233-247.

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Abstract

Earthquake induced slope failures occur in seismically active zones and lead to loss of lives and economic losses. The slope design in these situations needs to address the issues of uncertainty, safety and consequence costs in a rational manner. This paper demonstrates the slope stability evaluation using reliability considerations in a rational way complementary to the conventional factor of safety approach, and that it is possible to arrive at the optimum angle for a given geometry of slope and the soil properties taking into account risk, seismic effects using a horizontal seismic coefficient, variability of soil in a probabilistic frame work. A pseudo static probabilistic stability analysis of soil slopes is carried out taking into account the uncertainties associated with the soil parameters, correlation between cohesion and friction angle, initial cost and consequence costs. Relationships between reliability index and horizontal earthquake coefficients for chosen slope geometry and property variations are studied.

Item Type: Journal Article
Additional Information: The abstract mentioned in this record is not a part of the published paper.This journal does not permit any abstract in the paper. Hence, the abstract is prepared for eprints purpose only
Keywords: Seismic Stability;Soil Slopes;Variability of soil;Reliability;Initial Cost;Cost of Consequence
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 22 Jul 2005
Last Modified: 19 Sep 2010 04:17
URI: http://eprints.iisc.ernet.in/id/eprint/2627

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