Strength of Vegetated Coal-Bearing Soil under Dry-Wet Cycles: An Experimental Study

Table 6

Range analysis for internal friction angle.

Test #		(%)	(%)	(g/cm^3)
	39.7	26.7	26.3	26.6
	32.2	27.2	30.2	25.2
	19.9	30.6	30.0	35.1
	23.4	30.7	30.0	29.4
Range	19.8	4.0	3.9	9.9