Experimental and Simulation Study on Breaking Rock under Coupled Static Loading and Ultrasonic Vibration

Table 2

Rock properties from experiments and simulations [31].

Property	Experiment results	Simulation results
Young’s modulus E (GPa)	52.3 ± 12.2 (n = 10)	47.6 ± 0.231 (n = 10)
Poisson’s ratio	0.26 ± 0.05 (n = 10)	0.235 ± 0.03 (n = 10)
Uniaxial compressive strength (UCS) (MPa)	116 ± 19 (n = 10)	115.7 ± 1.5 (n = 10)
Brazilian tensile strength (BTS) (MPa)	8.1 ± 1.5 (n = 10)	8.15 ± 0.092 (n = 10)

Note that, in the experiments, n denotes the number of samples undergone the compression or Brazilian tests, while in PFC, it denotes the number of samples with different bond strength distributions.