Determination of Joint Surface Roughness Based on 3D Statistical Morphology Characteristic

Table 1

Calculating results and test results of the shear strength.

Specimen number	Type of JRCp	JRCp	Calculated result of shear strength	Test result of shear strength	Relative error (%)
1	JRCp (Z2)	18.85	1.37	1.20	14.49
	JRCp (SF)	19.13	1.39		16.29
	JRCp (Rp − 1)	18.05	1.31		9.56
2	JRCp (Z2)	17.48	1.70	1.43	18.71
	JRCp (SF)	17.67	1.71		19.74
	JRCp (Rp − 1)	16.51	1.63		13.74
3	JRCp (Z2)	16.81	2.04	1.78	14.56
	JRCp (SF)	17.86	2.12		19.35
	JRCp (Rp − 1)	15.19	1.92		7.68
4	JRCp (Z2)	15.85	2.33	2.14	8.84
	JRCp (SF)	16.12	2.35		9.87
	JRCp (Rp − 1)	14.97	2.26		5.60