Seepage Law of Injected Water in the Coal Seam to Prevent Rock Burst Based on Coal and Rock System Energy

Table 1

Geostress distribution characteristics of some rock bursts in China.

Number	Location	Buried depth (m)	Maximum principal stress			Intermediate principal stress			Minimum principal stress
			Magnitude (MPa)	Azimuth (°)	Inclination (°)	Magnitude (MPa)	Azimuth (°)	Inclination (°)	Magnitude (MPa)	Azimuth (°)	Inclination (°)
1	Pingdingshan 12th Mine	770	41.34	255.04	−2.63	19.28	−25.00	75.25	17.32	165.72	14.49
		830	48.25	122.89	−4.10	20.98	44.34	70.13	18.84	211.45	19.41
		620	33.46	110.24	−5.39	16.94	−21.50	−81.93	11.81	200.80	−5.98
2	Pingdingshan 8th Mine	495.4	28.10	119.23	−0.43	12.46	28.49	−59.68	5.97	209.50	−30.31
		807.3	34.15	224.25	3.02	22.38	−16.13	72.47	14.69	153.31	17.25
		602.9	29.06	251.71	6.54	17.90	5.03	73.84	10.22	159.98	14.71
3	Fuxin Wulong Mine	773	29.45	102.3	−15.3	18.03	−19	−62.2	11.69	198.9	−22.6
		774	31.89	100.3	−21	20.57	−42.7	−64.3	17.79	195.9	−14.1
4	Dataijing Mine	884	42.56	264.49	−26.92	23.84	59.45	−60.73	8.85	169.02	−10.63
		816	35.82	118	13	29.65	58	−64	9.4	203	−21
5	Muchengjian Mine	600	28.7	267.94	−0.43	18.9	−1.57	−48.7	11.4	177.57	−41.3
		600	43.3	38.9	−9.2	24.83	308	−9.5	16.7	352	76.7