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

Table 1

Physical properties of experimental specimens.

Uniaxial compressive strength σ (MPa)	Tensile strength σ (MPa)	Elastic modulus E (GPa)	Cohesive force c (MPa)	Internal friction angle (°)
23.13	2.76	4.25	3.60	31.2°