A Coupled Elastoplastic Damage Model for Clayey Rock and Its Numerical Implementation and Validation

Table 3

The results of unknown parameters by back analysis.

Confining pressure				(KPa)		(MPa)	(°)
0.89	1.381	0.569	0.990	58.132	0.608	77.418	7.290
2.50	0.860	0.583	1.243	97.946	0.404	95.593	2.501
2.85	0.939	1.190	1.886	44.399	0.693	66.270	0.804
5.42	0.590	2.008	0.951	49.008	0.699	117.196	0.921