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http://dx.doi.org/10.7843/kgs.2010.26.3.47

A Study on the Development of a Stability Chart for Yield Seismic Coefficient of Soil Slope Using Limit Analysis  

Choi, Sang-Ho (Dept. of Civil & Environmental Engrg., Sejong Univ.)
Kim, Jong-Min (Dept. of Civil & Environmental Engrg., Sejong Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.26, no.3, 2010 , pp. 47-57 More about this Journal
Abstract
Yield seismic coefficient plays an important role in the estimation of permanent displacement of a soil slope subjected to earthquake using Newmark's sliding block theory. However, yield seismic coefficients currently used in practices are not mechanically rigorous since most of them are estimated using limit equilibrium methods considering equilibrium condition only. Therefore, estimation of permanent displacement of a soil slope based on existing yield seismic coefficient may cause problems. Limit analysis estimating the range of mechanically rigorous solution is thought to be effective in evaluating the validity of existing yield seismic coefficient. In this study, a simple stability chart for yield seismic coefficient useful in practices is proposed by considering various slope conditions including stability number, slope inclination, strength parameters, etc.
Keywords
Limit analysis; Soil slope; Performance based design; Yield seismic coefficient; Stability chart;
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