Development and Application of Fluid-Solid Coupling Similar Materials in Discharge Test of Old Goaf Water

Table 5

Proportion of model test.

No.	Lithology	Thickness (m)	Model thickness (cm)	Compressive strength (MPa)		Material ratio (sand : barite powder : cement : cement : polyurethane : silicone oil)
				Actual strength	Simulation strength
1	Silty mudstone	12	6	42.5	0.14	1 : 0.125 : 0.011 : 0.017 : 0.024
2	Fine sandstone	17.5	8.75	55.2	0.18	1 : 0.125 : 0.014 : 0.017 : 0.011
3	#14 coal	3.4	1.7	16.5	0.06	1 : 0.111 : 0.009 : 0.001 : 0.046
4	Coarse-grained sandstone	11.1	5.55	39.5	0.13	1 : 0.125 : 0.012 : 0.017 : 0.048
5	Medium-grained sandstone	12.2	6.1	40.6	0.13	1 : 0.125 : 0.013 : 0.017 : 0.023
6	Silty mudstone	21.1	10.55	42.5	0.14	1 : 0.125 : 0.011 : 0.017 : 0.024
7	Fine sandstone	14.1	7.05	55.2	0.18	1 : 0.125 : 0.014 : 0.017 : 0.011
8	Sandy conglomerate	15.1	7.55	54.6	0.18	1 : 0.125 : 0.012 : 0.0177 : 0.24
9	Siltstone	10.3	5.15	40.1	0.13	1 : 0.142 : 0.012 : 0.017 : 0.024
10	Silty mudstone	12.1	6.05	42.5	0.14	1 : 0.125 : 0.011 : 0.017 : 0.024
11	Sandy conglomerate	16.2	8.1	54.6	0.18	1 : 0.125 : 0.012 : 0.0177 : 0.24
12	Carbonaceous mudstone	7	3.5	26.4	0.09	1 : 0.142 : 0.01 : 0.014 : 0.024
13	#3-5 coal	21	10.5	16.5	0.06	1 : 0.111 : 0.009 : 0.011 : 0.023
14	Medium sandstone	20.1	10.05	42.5	0.14	1 : 0.125 : 0.013 : 0.017 : 0.024