Research on Physical Similarity Simulation of Mining Uphill and Downhill at the Large-Angle Working Face

Table 1

Mechanical parameters of coal and rock mass by similar materials.

No.	Lithology	Elastic modulus (GPa)	Density 10^3 (kg m^−3)	Compressive strength (MPa)	Cohesion (MPa)	Internal friction angle (°)
1	Mudstone	10.2	1.7	41.52	1.22	39
2	Fine sandstone	35	2.6	64.09	23.1	37.5
3	Medium coarse-grained sandstone	19.2	2.4	58.52	4.5	40
4	Mudstone (containing variegated mudstone)	11.6	1.8	42.90	0.69	39
5	Fine sandstone	35	2.6	64.09	23.1	37.5
6	Mudstone	10.2	1.7	41.52	1.22	39
7	Fine sandstone	35	2.6	64.09	23.1	37.5
8	Mudstone (sandy mudstone)	11.6	1.8	42.90	0.69	39
9	Mudstone	10.2	1.7	41.52	1.22	39
10	Sandstone and mudstone	11.6	1.8	42.90	0.69	39
11	Mudstone	10.2	1.7	41.52	1.22	39
12	Sandy mudstone	11.6	1.8	42.90	0.69	39
13	Fine sandstone	35	2.6	64.09	23.1	37.5
14	Mudstone	10.2	1.7	41.52	1.22	39
15	Sandy mudstone	11.6	1.8	42.90	0.69	39
16	Fine sandstone	35	2.6	64.09	23.1	37.5
17	Mudstone	10.2	1.7	41.52	1.22	39
18	Fine sandstone	35	2.6	64.09	23.1	37.5
19	Mudstone	10.2	1.7	41.52	1.22	39
20	Fine sandstone	35	2.6	64.09	23.1	37.5
21	Mudstone	10.2	1.7	41.52	1.22	39
22	Siltstone	16	2.1	52.16	10.5	35
23	Sandy mudstone	11.6	1.8	41.52	0.69	39
24	Fine sandstone	35	2.6	64.09	23.1	37.5
25	Sandy mudstone	11.6	1.8	41.52	0.69	39
26	Fine sandstone (including mudstone)	35	2.6	64.09	23.1	37.5
27	Mudstone	10.2	1.7	41.52	1.22	39
28	Sandy mud (including mudstone)	11.6	1.8	42.90	0.69	39
29	Mudstone	10.2	1.7	41.52	1.22	39
30	Fine sandstone	35	2.6	64.09	23.1	37.5
31	Mudstone (with a small amount of fine sandstone)	11.6	1.8	41.52	0.69	39
32	Fine sandstone	35	2.6	64.09	23.1	37.5
33	Sandy mudstone	11.6	1.8	42.90	0.69	39
34	Siltstone	16	2.1	52.16	10.5	35
35	Mudstone	10.2	1.7	41.52	1.22	39
36	Fine sandstone	35	2.6	64.09	23.1	37.5
37	Mudstone	10.2	1.7	41.52	1.22	39
38	Sandy mudstone	11.6	1.8	42.90	0.69	39
39	Mudstone	10.2	1.7	41.52	1.22	39
40	Piebald mudstone	10.8	1.7	42.05	1.02	39
41	Fine-grained quartz sandstone	35	2.6	64.09	23.1	37.5
42	Sandy mudstone	11.6	1.8	42.90	0.69	39
43	Fine sandstone	35	2.6	64.09	23.1	37.5
44	Mudstone	10.2	1.7	41.52	1.22	39
45	Fine sandstone	35	2.6	64.09	23.1	37.5
46	Sandy mudstone	11.6	1.8	42.90	0.69	39
47	Mudstone	10.2	1.7	41.52	1.22	39
48	Mudstone (containing fine sandstone)	11.6	1.8	42.90	0.69	39
49	Sandy mudstone	11.6	1.8	42.90	0.69	39
50	13–1# coal seam			2.61
51	Mudstone	10.2	1.7	41.52	1.22	39
52	Sandy mudstone	11.6	1.8	42.90	0.69	39
53	Mudstone	10.2	1.7	41.52	1.22	39
54	Piebald mudstone	10.8	1.7	42.05	1.02	39
55	Sandy mudstone	11.6	1.8	42.90	0.69	39
56	Fine sandstone	35	2.6	64.09	23.1	37.5
57	Sandy mudstone	11.6	1.8	42.90	0.69	39
58	Medium sandstone	19.2	2.4	55.86	4.5	40
59	Mudstone	10.2	1.7	41.52	1.22	39
60	Fine sandstone	35	2.6	51.47	23.1	37.5
61	Sandy mudstone	11.6	1.8	42.17	0.69	39
62	Fine sandstone	35	2.6	72.51	23.1	37.5
63	Mudstone	10.2	1.7	44.52	1.22	39
64	Sandy mudstone	11.6	1.8	43.62	0.69	39
65	Mudstone	10.2	1.7	45.98	1.22	39
66	Fine sandstone	35	2.6	43.71	23.1	37.5
67	Mudstone	10.2	1.7	34.06	1.22	39
68	11–2# coal seam			2.61
69	Mudstone	10.2	1.7	23.67	1.22	39
70	Fine sandstone	35	2.6	64.09	23.1	37.5