Deformation and Failure Characteristics and Control Technology of Roadway Surrounding Rock in Deep Coal Mines

Table 1

Test model similar material ratio table.

Layer	Rock	Thickness (mm)	Weight (kg)	Material usage (kg)
Number				Sand	Lime	Gypsum	Water
1	Sandy mudstone	49.50	71.28	61.10	8.32	3.56	8.55
2	Mudstone	96.50	138.96	121.59	13.90	5.95	16.67
3	Sandy mudstone	163.00	234.72	201.18	27.38	11.74	28.17
4	Fine sandstone	150.00	216.00	172.80	16.20	37.80	25.91
5	Sandy mudstone	150.00	216.00	185.14	25.20	10.80	25.92
6	Fine sandstone	84.50	121.68	97.34	9.13	21.29	14.60
7	Mudstone	49.50	71.28	62.37	7.13	3.05	8.55
8	Sandy mudstone	317.50	457.20	391.88	53.34	22.86	54.86
9	Mudstone	79.50	114.48	100.17	11.44	4.90	13.73
10	Fine sandstone	53.00	76.32	65.42	6.36	6.36	9.16
11	Sandy mudstone	155.00	223.20	191.32	26.04	11.16	26.79
12	Mudstone	54.00	77.76	68.04	7.78	3.33	9.33