Experimental Study on the Calibration of Microparameters of Dolomite in the Barun Open-Pit Mine on the Basis of the Parallel Bond Model

Table 6

Process of dolomite microparameter calibration.

Step	Microparameters									Macroparameters
	Ec (GPa)	E̅c (GPa)	kn/ks	k̅n/k̅s	σ̅c (MPa)	Kσ	μ	ϕ (°)	λ	UCS (MPa)	TS (MPa)	E (GPa)		θ (°)	C (MPa)
1	15.9	9.2	2.6	2.6	54.1	0.8	0.5	85.0	1.2	111.03	5.52	20.68	0.301	57.85	18.91
2	17.5	10.5	2.3	2.3	54.1	0.8	0.5	85.0	1.2	109.54	—	23.74	0.269	—	—
3	17.5	10.5	2.3	2.3	70.0	0.8	0.5	85.0	1.4	155.13	7.07	23.61	0.273	—	—
4	17.5	10.5	2.3	2.3	80.0	0.8	0.5	85.0	1.4	168.17	7.89	23.53	0.270	58.11	23.01
5	17.5	10.5	2.2	2.2	80.0	0.8	0.5	85.0	1.3	147.25	7.01	23.77	0.261	58.27	23.65
6	17.5	10.5	2.1	2.1	85.0	0.8	0.5	85.0	1.3	151.68	7.24	24.91	0.258	57.51	23.04