Review and comparison of rock mass classification systems

Saffet Yagiz, Saad Cheema

Research output: Contribution to conferencePaper

Abstract

In this paper, the history of the rock mass classifications is discussed generally. Since the development of Terzaghi’s Rock-Load Classification System, several scholars have introduced quite different classification systems, which are briefly described. Most recent modifications of the Q system was done by Palmstrom, (1995). Unal, (1990) modified the RMR for weak rock. The detailed modifications are explained in this article, which includes the development of RMI and modified RMR. Importance of, site investigation and rock types have been evaluated for applying any of the classifications for design purposes. In the conclusion, advantages and disadvantages of the rock mass classification systems are discussed.
Original languageEnglish
Pages449
Number of pages460
Publication statusPublished - Dec 1 2002
EventPakistan Engineering Congress (2001-2002) - Pakistan, Lahor, Pakistan
Duration: Dec 31 2001Jan 2 2002

Conference

ConferencePakistan Engineering Congress (2001-2002)
CountryPakistan
CityLahor
Period12/31/011/2/02

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    Yagiz, S., & Cheema, S. (2002). Review and comparison of rock mass classification systems. 449. Paper presented at Pakistan Engineering Congress (2001-2002), Lahor, Pakistan.