An Extension Failure Criterion for Brittle Rock

Table 1

Testing results of true triaxial tests on coarse-grained dense marble (MPa) [36].

	3.45							6.89						13.79							20.68					27.58
	3.45	5.17	6.89	10.34	27.58	68.95	82.74	6.89	13.79	27.58	55.16	82.14	110.31	13.79	20.68	27.58	41.37	5.16	82.74	110.31	20.68	27.58	62.05	82.73	110.31	27.58	48.26	55.16	82.74	110.31
	66.3	75.1	83.9	94.1	129.8	192.7	143.3	83.8	112.8	134.1	191.6	188.1	174.6	115.9	126.3	147.2	154.8	196.4	254.4	278.1	138.0	150.2	208.7	260.2	289.1	170.6	166.6	222.0	274.8	324.0