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AN APPLICATION OF FUZZY SETS TO THE ROCK MASS RATING (RMR) SYSTEM USED IN ROCK ENGINEERING; A CASE STUDY IN IRAN

M. Ataei, A. D. Besheli, F. Sereshki, M. Jamshidi

First published: 2008DOI pendingView metrics

Abstract

The First step in analysis of slope stability in open pit mines is punctual definition of rock mass characteristics. Several rock mass classification systems have been presented so far in the area of geomechanics. One of the most widely used rock mass classification systems are the geomechanics classification (RMR) by Bieniawiski. The RMR classification is based on the definition of classic membership functions. So characterization of rock masses and determination of their strength may involve some uncertainties due to their complex nature. The fuzzy set theory is one of the tools to handle such uncertainties. This paper describes the application of fuzzy set theory to the RMR system by incorporating fuzzy sets, and mamadani fuzzy algorithm was constructed using “if-then” rules for evaluating RMR parameters and their rating considered in the RMR system. Firstly, RMR classification is redefined by using the fuzzy logic. In the second step, the tables for a case study in Iran are calculated based on field and laboratory measurements.

Publication details

Title
AN APPLICATION OF FUZZY SETS TO THE ROCK MASS RATING (RMR) SYSTEM USED IN ROCK ENGINEERING; A CASE STUDY IN IRAN
Authors
M. Ataei, A. D. Besheli, F. Sereshki, M. Jamshidi
Proceedings
8th International Scientific Conference - SGEM2008
Publisher
SGEM Scientific GeoConference
Year
2008
Pages
347-356
SWS Citekey
Ataei2008347356
ISSN
1314-2704
ISBN
954-918181-2
Language
en
Publication type
Conference Paper
Keywords
ClassificationFuzzy logicOpen pit mineRock mass rating (RMR)Slope stability
References10

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