Class Ratio Transform with an Application to Describing the Roughness Anisotropy of Natural Rock Joints

Table 2

Summary of JRC values of test samples obtained in different orientations and their variations with sample scale.

Length of test profiles (mm)	Numbers of test profiles	Orientation (°)	Average value of JRC
100	89	0/180/360	13.8
	39	15/195	12.6
	42	30/210	10.8
	38	45/225	9.8
	38	60/240	9.1
	38	75/255	9.9
	52	90/270	7.7
	39	105/285	9.4
	38	120/300	10.1
	40	135/315	10.3
	32	150/330	10.4
	33	165/345	12.2
200	48	0/180/360	11.1
	19	15/195	10.1
	17	30/210	9.4
	19	45/225	7.8
	20	60/240	8.0
	19	75/255	6.1
	44	90/270	6.8
	20	105/285	8.3
	10	120/300	9.2
	20	135/315	8.5
	22	150/330	9.9
	22	165/345	10.5
500	28	0/180/360	9.0
	10	15/195	8.0
	8	30/210	7.5
	10	45/225	6.4
	10	60/240	6.4
	9	75/255	5.1
	28	90/270	5.3
	10	105/285	6.0
	10	120/300	5.7
	8	135/315	5.8
	9	150/330	7.8
	10	165/345	8.8
1000	14	0/180/360	6.0
	5	15/195	6.1
	5	30/210	5.8
	5	45/225	4.7
	5	60/240	3.4
	3	75/255	3.7
	14	90/270	3.6
	5	105/285	4.4
	5	120/300	3.6
	5	135/315	5.0
	4	150/330	4.9
	5	165/345	5.8