Mechanical Properties and Control Rockburst Mechanism of Coal and Rock Mass with Bursting Liability in Deep Mining

Table 2

Prepeak energy, postpeak energy, and their ratio under a uniaxial state.

Specimen type	Prepeak energy (J·cm^−3)	Postpeak energy (J·cm^−3)	Bursting energy index
Roof	0.1785	0.0127	14.0551
Floor	0.2197	0.0203	10.8227
Coal	0.0269	0.0092	2.9239
Combination	0.1089	0.0290	3.7552