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

Table 1

Comparison of mechanical properties between raw coal and coal-like material.

Category	Rc (MPa)	E (GPa)	μ	C (MPa)	φ (°)	Rt (MPa)
Raw coal	12.23	1.62	0.20	1.44	31.09	0.252
Coal-like material	12.06	1.59	0.18	1.46	32.17	0.234

Note: data are average values; curve is a typical curve.