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Rock Mechanics and Rock Engineering
Published in: Rock Mechanics and Rock Engineering 3/2010

01-05-2010 | Original Paper

Assessment of the Stability of Rock Slopes by the Slope Stability Rating Classification System

Authors: Abbas Taheri, Kazuo Tani

Published in: Rock Mechanics and Rock Engineering | Issue 3/2010

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Abstract

Given the lack of suitable systems in the characterization of slope stability of heavily jointed rock masses, a new rock mass classification system called Slope Stability Rating (SSR) is proposed. In addition to the so-called modified Geological Strength Index, the proposed system considers five additional parameters whose relative effects on the stability of fractured rock slopes were precisely examined based on data retrieved from eight different rock slope sites in Iran. An overall rating for the rock mass is obtained from the summation of the individual ratings of each parameter. A number of design charts are provided as illustration. The new system was then validated based on 46 slope case histories from Iran and Australia. For this, by means of the design charts previously mentioned, a recommended stable angle for each slope was given and compared with the current slope conditions. As a result, SSR design charts for maximum excavation angle (FS = 1.0) and also for other more conservative excavation angles (FS = 1.2, 1.3, 1.5) were presented.
previous article Application of Rock Mass Characterization for Determining the Mechanical Properties of Rock Mass: a Comparative Study
next article Application of Fuzzy Set Theory to Rock Engineering Classification Systems: An Illustration of the Rock Mass Excavability Index

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Metadata
Title
Assessment of the Stability of Rock Slopes by the Slope Stability Rating Classification System
Authors
Abbas Taheri
Kazuo Tani
Publication date
01-05-2010
Publisher
Springer Vienna
Published in
Rock Mechanics and Rock Engineering / Issue 3/2010
Print ISSN: 0723-2632
Electronic ISSN: 1434-453X
DOI
https://doi.org/10.1007/s00603-009-0050-4

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