Study on Overburden Rock Movement and Stress Distribution Characteristics under the Influence of a Normal Fault

Table 4

Data on stress variation in the fault plane at different distances between the working face and the fault in footwall mining.

Distance from the fault (m)	Point A′			Point B′
	Shear (MPa)	Normal (MPa)	/	Shear (MPa)	Normal (MPa)	/
100	1.24	14.1	0.0879	1.69	11.54	0.146
90	1.11	14.4	0.077	1.46	11.19	0.13
80	1	14.7	0.068	1.12	11.15	0.1
70	0.89	15.1	0.059	0.65	10.04	0.065
60	0.78	15.6	0.05	0.42	9.3	0.034
50	0.65	16.1	0.04	0.61	8.5	0.718
40	0.42	16.4	0.026	1.31	7.89	0.166
30	0.13	16	0.008	1.96	7.45	0.263
20	1.65	13.4	0.123	2.5	7.44	0.336
10	1.02	10.5	0.097	3.14	7.71	0.407
5	0.6	6.5	0.092	4	7.91	0.506
Original stress	1.69	12.6		1.55	12.4