Rock Mass Quality Evaluation Based on Unascertained Measure and Intuitionistic Fuzzy Sets

Table 1

Rock mass data of the underground engineering in Guangzhou pumped storage power plant [41].

Sample	Footage (m)	Weathering corrosion	RQD (%)	RW (MPa)	Kv	Kf	[L·(min·10 m)^−1]
1	0 + 000∼0 + 067	Fault alteration zone of medium to weak weathering	26	36	0.22	0.35	5
2			50	40.2	0.5	0.5	10
3	0 + 067∼0 + 130	Weak weathered	52	25	0.2	0.5	5
4			71	90	0.35	0.3	18
5	0 + 130∼0 + 198	Slightly weathered	75	95	0.7	0.5	0
6			77.5	90	0.57	0.45	10
7	0 + 198∼0 + 297	Fault alteration zone	50	70	0.5	0.25	5
8			50.9	34	0.32	0.35	21