Experimental Study on Influence of Borehole Arrangement on Energy Conversion and Acoustic Characteristics of Coal-Like Material Sample

Table 2

Internal energy conversion of coal-like material sample under different borehole arrangements.

Group	Total energy (kJ·m^−3)	Elastic energy (kJ·m^−3)	Dissipated energy (kJ·m^−3)	Elastic energy conversion ratio (%)	Dissipated energy conversion ratio (%)	Elastic energy growth rate peak (kJ·m^−3·s^−1)
I	92.275	76.752	15.523	83.18	16.82	12.75
II	96.469	70.603	25.865	73.19	26.81	11.49
III	127.699	83.105	44.594	65.08	34.92	9.96
IV	111.379	76.789	34.59	68.94	31.06	10.83
V	109.913	69.391	40.522	63.13	36.87	9.89