Critical Conditions and Energy Transfer Characteristics of the Failure Process of Coal-Rock Combination Systems in Deep Mines

<div>Schematic diagram of the deformation of the coal–rock combination under an external force: (a) combination samples with different lithologies; (b) combination samples with different height ratios.</div>

Geofluids

fig6

Figure 6

Figure 6: Critical Conditions and Energy Transfer Characteristics of the Failure Process of Coal-Rock Combination Systems in Deep Mines 