Effects of Initial Porosity and Water Pressure on Seepage-Erosion Properties of Water Inrush in Completely Weathered Granite

Table 2

Test scheme.

Number	Water pressure (MPa)	Initial porosity	Total mass (g)	Weight to each particle size (g)
				(0–0.25 mm)	(0.25–2 mm)	(2-3 mm)	(3–5 mm)	(5–10 mm)
1	0.2	0.36	3233	628.5	885.1	569.6	430.9	718.8
2	0.4			628.5	885.1	569.6	430.9	718.8
3	0.6			628.5	885.1	569.6	430.9	718.8
4	0.6	0.23	3890	756.2	1064.9	685.3	518.4	864.8
5		0.30	3536	687.5	968.1	623.0	471.3	786.1
6		0.36	3233	628.5	885.1	569.6	430.9	718.8