Experimental Study of Joint Roughness Influence on Fractured Rock Mass Seepage

Table 1

Roughness index measurement results of the joint surface.

	Sample number	Mean variance of protrusion height	Mean equidistant fluctuation angle (°)
CS	CS-1	5.4896	7.8956
	CS-2	4.0929	7.4568
	CS-3	2.4483	6.1982
	CS-4	1.8167	5.593
	CS-5	1.0138	5.0429
	CS-6	0.5729	4.7844
FS	FS-1	9.6780	10.10
	FS-2	9.5402	8.17
	FS-3	7.0203	8.16
	FS-4	6.5496	7.86
	FS-5	5.6889	5.24
	FS-6	4.3265	3.43
MS	MS-1	14.1871	29.30
	MS-2	14.2546	34.56
	MS-3	13.2056	23.01
	MS-4	12.4556	22.01
	MS-5	10.8990	18.06
	MS-6	9.7888	14.56