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An alternative rock mass classification system for rock slopes

  • Lysandros Pantelidis
Original Paper

Abstract

A system for the quantification of the failure hazard of rock cuttings structured in the form of rating tables is proposed. Rock cuttings are classified according to their failure hazard taking into account both their drained condition and the influence that climatic conditions have on stability; the latter being the most common landslide-triggering factor. The system deals with seven types of failure including slides, topples and falls. Where possible and convenient, parameters are amalgamated using well-established expressions of safety factor increasing the objectivity of the system. In addition to triggering mechanisms, site-specific parameters related to the mean and critical precipitation height, as well as the potential for the development of adverse, water-related conditions are taken into account to arrive at a Hazard Index value.

Keywords

Rock mass rating Rock falls RMR SMR Rock cutting failure Quantitative risk assessment 

Résumé

Un système sur la quantification du risque d’échec des déblais rocheux structuré sous la forme des tableaux d’évaluation est proposé. Les déblais rocheux sont classifiés selon leur risque d’échec prenant en compte leur condition asséchée et l’influence des conditions climatiques sur la stabilité; le dernier facteur déclenchement des glissements de terrain est le plus commun. Le système traite avec sept types d’échec, glissements, renversements et éboulements rocheux sont compris. Lorsque cela est possible et pratique, les paramètres sont fusionnés en utilisant des expressions du facteur de sécurité connues, qui accroissent l’objectivité du système. En outre des mécanismes de déclenchement, les paramètres relatifs à la moyenne et à la hauteur critique de la précipitation du site spécifique, ainsi que la possibilité du développement des conditions négatives et relatives à l’eau, sont prises en considération pour arriver au Valeur du Risque.

Mots clés

Classification du massif rocheux Eboulements rocheux RMR, SMR, Echec des déblais rocheux Evaluation quantitative de risque 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Civil EngineeringAristotle University of ThessalonikiThessalonikiGreece

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