Representative Sample Sampling Method for Size Effect Experiment of Jointed Rock Mass

Table 1

Distribution statistics of joint geometric parameters.

Joint	Spacing (m)		Trace length (m)			Dip angle (°)
	Distribution	Mean	Distribution	Mean	Variance	Distribution	Mean	Variance
1	Negative exponential	1.02	Normal	2.47	0.12	Normal	57.8	8.8
2	Negative exponential	0.98	Normal	1.97	0.14	Normal	60.3	9.2
3	Negative exponential	1.05	Normal	1.88	0.09	Normal	29.4	10.1