Dynamic Response Analysis of Roadway Surrounding Rock Induced by Dynamic Load under the Action of Hard and Thick Rock Stratum

Table 2

Dynamic response of roadway surrounding rock under different boundary conditions.

Boundary condition			Dynamic response
			Peak value of vertical stress/MPa	Peak value of horizontal stress/MPa	Deformation of surrounding rock/mm	Deformation velocity/m/s	Deformation acceleration/m/s^2
Solid coal face on both sides	Solid coal roadway	Outer side	14.02	4.62	21.05	1.53	404
		Inner side	19.36	7.42	27.28	1.54	366
		Roof	4.89	20.62	10.58	1.33	261
		Floor	2.13	6.25	0.67	0.19	94
One side gob face working face	Solid coal roadway	Outer side	13.76	4.26	18.16	1.32	386.27
		Inner side	19.18	7.06	24.54	1.47	1107.63
		Roof	6.67	21.52	9.63	1.25	236.96
		Floor	2.11	6.33	0.61	0.21	191.03
	Gob-side roadway	Outer side	23.2	8.44	250.53	2.11	369.69
		Inner side	12.34	3.02	139.58	2.43	469.23
		Roof	8.87	55.28	91.81	0.91	248.38
		Floor	3.14	7.83	0.2	0.17	110.65