Loading History Effect on Stress Relaxation of Rock Joints

Table 1

Average shear strength of structural plane.

Normal stress (MPa)	Slope angle (°)	Shear strength τmax (MPa)
1.962	10	1.69
1.962	30	2.60
1.962	45	3.57
3.924	10	3.40
3.924	30	4.40
3.924	45	5.59