Mechanical and Acoustic Emission Responses of Rock Fragmentation under Disc Cutter Penetration

<div>SEM images of sandstone fracture faces: (a), (b) sampled from the crushed zones and (c), (d) sampled from the major crack faces of specimens SC5 and SW5, respectively.</div>

Advances in Civil Engineering

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Figure 19

Figure 19: Mechanical and Acoustic Emission Responses of Rock Fragmentation under Disc Cutter Penetration 