Parallel Offset Crack Interactions in Rock under Unloading Conditions

Table 1

ICs varying with staggered distance ratio ().

	Inner tip (Crack 1)				Outer tip (Crack 1)
	0.1	1.230	2.052	0.187	0.073	1.080	1.252	1.256	1.119
0.2	1.191	1.544	0.350	0.240	1.071	1.211	1.206	1.099
0.5	1.160	1.128	0.614	0.558	1.067	1.132	1.096	0.985
0.8	1.086	1.008	0.750	0.725	1.069	1.085	1.012	0.928
1.0	1.047	0.961	0.808	0.783	1.055	1.054	0.981	0.917