Q66
The term �RQD� is used to measure:
A.
Rock cohesion
B.
Rock joint permeability
C.
Quality of rock mass
AnswerD.
Seepage rate
Answer: Option C
Solution
Answer: Option C
Solution:
RQD (Rock Quality Designation) quantifies the degree of jointing/fracturing in rock core. Higher RQD indicates better rock mass quality, critical for tunnel and foundation design.