Abstract
The Mohr failure envelopes for compacted rockfills exhibit significant curvature particularly at low and medium stresses. A computer program for circular arc slope stability analysis has been modified to accept these non-linear failure envelopes. A dimensionless stability number has been introduced to facilitate the production of charts for the rapid assessment of rock-fill slope stability. The effect of submergence on the stability of compacted rockfill slopes has been examined. Les courbes intrinsèques des remblais rocheux compactés montrent une courbure signifiante surtout à basses et moyennes contraintes. Un programme d'ordinateur pour l'analyse de la stabilité des pentes en arc de cercle a été modifié pour prendre encompte ces courbes intrinsèques non-linéaries. Un parameter de sécurité au renversement, sans dimensions a été introduit pour faciliter la production d'abaques pour l'évaluation rapide de la stabilité des pentes de remblais rocheux. L'effet de la submersion sur la stabilité des pentes de remblais rocheux compactés a été étudié.
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