Classification Method and Application of Rock Fracture Ability by Supercritical CO₂ Blasting

Table 11

Fracture ability classification results of rock mass.

Rock samples	Comprehensive membership					Fracture ability grade
	U1	U2	U3	U4	U5
A1	0.3357	0.6772	0.5012	0.3306	0.3654	Grade II
A2	0.2623	0.5969	0.4351	0.3439	0.2972	Grade II
A3	0.3173	0.6561	0.4614	0.4331	0.2941	Grade II
B1	0.0989	0.4975	0.7171	0.5158	0.2104	Grade III
B2	0.1474	0.3019	0.7991	0.3841	0.2017	Grade III
B3	0.1423	0.4314	0.8634	0.5538	0.2959	Grade III
C1	0.0501	0.1568	0.5479	0.8991	0.5712	Grade IV
C2	0.1478	0.1659	0.6010	0.8636	0.6599	Grade IV
C3	0.1087	0.2003	0.3251	0.7490	0.5879	Grade IV