Strength Characteristics of Nonpenetrating Joint Rock Mass under Different Shear Conditions

Table 4

Maximum axial stress statistics obtained after the triaxial test of each group of specimens.

Group B1			Group B2			Group C1			Group C2
Specimen no.	Confining pressure (MPa)	Maximum axial stress σ1 (MPa)	Specimen no.	Confining pressure (MPa)	Maximum axial stress σ1 (MPa)	Specimen no.	Confining pressure (MPa)	Maximum axial stress σ1 (MPa)	Specimen no.	Confining pressure (MPa)	Maximum axial stress σ1 (MPa)
B1-1-1	1	56.86	B2-1-2	2	59.66	C1-1-1	1	51.62	C2-1-1	1	33.82
B1-2-3	3	61.23	B2-2-4	4	68.45	C1-2-2	2	55.83	C2-2-2	2	48.41
B1-3-5	5	70.88	B2-3-6	6	74.83	C1-3-3	3	55.75	C2-3-3	3	49.17
						C1-4-4	4	66.24	C2-4-4	4	55.32
						C1-5-5	5	70.04	C2-5-5	5	69.64