Mechanical Mechanism and Propagation Law of Fissure-Tip Cracks of Large-Size Rock Specimens with Two Precut Fissures

<div>Failure modes of rock specimens with two fissures under biaxial loading. (a) Shear failure (b) Tension-shear mixed failure (c) Wing crack propagation failure.</div>

Shock and Vibration

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Figure 2

Figure 2: Mechanical Mechanism and Propagation Law of Fissure-Tip Cracks of Large-Size Rock Specimens with Two Precut Fissures 