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Rock Mass
Linked via "Bieniawski"
Rock Mass Rating (RMR) System
The Rock Mass Rating (RMR) system [1], initially developed by Bieniawski (1976), remains a foundational method. It aggregates five key parameters into a single score, typically ranging from 10 to 100, corresponding to rock mass classes I (Very Good Rock) through V (Very Poor Rock).
The five primary input parameters are: