Experimental Study on Dynamic Response and Damage Evolution of Coal under Shocks by Multiple High-Pressure Air Blasting

Table 3

The results of radial strain peak at each measuring point.

Times	Radial strain peak at each measuring point/uε
	50 mm	110 mm	210 mm	320 mm
1	2573.78	959.84	384.69	184.54
2	2565.38	1055.97	460.68	289.91
3	2744.86	857.13	368.06	225.69
4	2856.14	843.59	278.57	227.66
5	3031.82	763.31	278.81	147.78