Cracking and Failure in Rock Specimen Containing Combined Flaw and Hole under Uniaxial Compression

Table 1

Arrangement of specimens.

Series	Specimen type	α (°)	Sample ID
I	Intact specimen (Figure 1(a))	—	—
II	Single-hole specimen without flaw (Figure 1(b))	—	SHWF
III	Single-hole and two-flaw specimen (Figure 1(c))	0	SHTF-0
		30	SHTF-30
		60	SHTF-60
		90	SHTF-90
IV	Two-hole specimen without flaw (Figure 1(d))	—	THWF
V	Two-hole and single-flaw specimen (Figure 1(e))	0	THSF-0
		30	THSF-30
		60	THSF-60
		90	THSF-90