DBPapers
DOI: 10.5593/SGEM2014/B12/S2.108

STABILITY ANALYSIS OF A NATIONAL ROAD USING SHEAR STRENGTH REDUCTION TECHNIQUE

N. Botu, R. M. Chirila, D. E. Grigore
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-08-7 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 2, 847-852 pp

ABSTRACT
Traditional calculation methods in slope stability analysis are based on limit equilibrium where shear strength mobilization has the same value for any location considered. Shear strength reduction - finite element method (SSR-FEM) solve the limitations of the limit equilibrium methods. The example highlights the slope stability analysis by reducing shear strength caracteristics and the safety factor determination on a slope from Romanian territory. The upper part of the slope is crossed by one national road with intense traffic. The factor of safety (Fs) of a soil slope is defined as the number by which the original shear strength parameters must be divided in order to bring the slope to the point of failure. The widespread availability of computer programs by finite elements method and the ability to apply the shear strength reduction can solve complex stability analysis and can reveal the behavior of a slope.

Keywords: slope stability, shear strength reduction, finite elements, limit equilibrium