Q135
What is the typical range of unconfined compressive strength (UCS) for weak rocks?
A.
>250 MPa
B.
100�250 MPa
C.
25�100 MPa
D.
<25 MPa
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Weak rocks usually have UCS less than 25 MPa, indicating low strength and high deformability.