Question

Barton classified the rock mass on the basis of

• A. RMR
• B. Q-system
• C. Slake durability
• D. RQD

Hint:

Common rock mass classification systems: \[ \boxed{ \begin{aligned} \text{Bieniawski} &\rightarrow \text{RMR} \text{Barton} &\rightarrow \text{Q-system} \end{aligned} } \]

Answer 1

The Correct Option is B

Step 1: Recall Barton's rock mass classification. The rock mass classification proposed by Barton, Lien, and Lunde is known as the \[ \boxed{\text{Q-system}.} \]

Step 2: Identify the correct option. The Q-system evaluates rock quality using parameters such as RQD, joint set number, joint roughness, joint alteration, joint water reduction factor, and stress reduction factor. Hence, \[ \boxed{\text{Q-system}} \] is the correct answer. Therefore, \[ \boxed{(B)} \] is the correct answer.