Research on Rock Fracture Surface Morphology Characterization under Brazilian Test

Table 2

The variation mean of every specimen's three lines and three sections.

	Left	Middle	Right	Left	Middle	Right	Left	Middle	Right
	A1(R)			A2(R)			A3(R)
𝑉	0.5640	0.5231	0.5108	0.5635	0.5434	0.5788	0.5306	0.5085	0.5148
	A1			A2			A3
𝑉	0.3557	0.3741	0.3628	0.3825	0.3691	0.3906	0.3543	0.3250	0.3478
	B1			B2			B3
𝑉	0.4918	0.4563	0.4712	0.4722	0.4549	0.4405	0.4694	0.4458	0.4194
	C1			C2			C3
𝑉	0.5720	0.5545	0.5664	0.5337	0.5142	0.5607	0.5791	0.5842	0.5569