Study on Reasonable Roadway Position of Working Face under Strip Coal Pillar in Rock Burst Mine

Table 1

Ratio of laying materials.

No.	Lithology	Model thickness (cm)	Material consumption (kg)				Layer
			Sand	CaCO3	Gypsum	Water
F20	Mudstone	6	54.84	2.06	4.80	8.81	2
F19	Siltstone	4	33.80	2.41	2.41	5.52	2
F18	Sandy mudstone (S-M)	2.5	21.83	0.82	1.91	3.51	1
F17	Siltstone	10	84.49	6.04	6.04	13.80	3
F16	Fine sandstone (F-S)	4.4	37.01	4.23	1.06	6.04	2
F15	Mudstone	4.6	42.05	1.58	3.68	6.76	2
F14	Siltstone	2.2	18.59	1.33	1.33	3.06	1
F13	Mudstone	13	118.82	4.45	10.40	19.10	6
F12	S-M	16	139.70	5.24	12.22	22.45	5
F11	Mudstone	11	100.54	3.77	8.80	16.16	5
F10	S-M	7.5	65.49	2.46	5.73	10.52	3
F9	Siltstone	5	42.24	3.02	3.02	6.90	2
F8	Mudstone	4.8	43.87	1.65	3.84	7.05	2
F7	Siltstone	7	59.14	4.22	4.22	9.66	4
F6	Coarse sandstone (C-S)	2.3	18.34	2.10	0.52	2.99	1
F5	Medium sandstone	4	32.33	3.23	1.39	5.28	1
F4	F-S	2.7	22.71	2.60	0.65	3.71	1
F3	Siltstone	2.4	20.29	1.44	1.44	3.31	1
F2	F-S	3	25.24	2.88	0.72	4.12	1
F1	C-S	2	15.95	1.82	0.45	2.60	1
C	coal	4	20.47	1.54	1.02	3.29	2
R1	Siltstone	4	33.80	2.41	2.41	5.52	2
R2	F-S	6	50.47	5.77	1.44	8.24	2
R3	S-M	4	34.93	1.31	3.06	5.60	2
R4	C-S	3.5	27.91	3.19	0.80	4.55	2
R5	Mudstone	4.3	39.31	1.47	3.44	6.32	2