Table 2 Mechanical parameters of specimens.

From: Meso fracture characteristics of granite and instability evolution law of surrounding rock in deep cavern

Uniaxial compression test

Brazilian splitting test

Type

Crack angle β/°

UCS σc/MPa

Type

Crack angle γ/°

TS σt/MPa

N

–

138.73

S-N

–

11.85

A-35

35

48.03

S-0

0

4.97

A-45

45

60.68

S-40

40

4.07

B-35

35

47.87

S-60

60

2.27

B-45

45

56.58

S-90

90

3.11

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