Research Article

Damage Ratio Based on Statistical Damage Constitutive Model for Rock

Table 3

Data fitting results.

NumberCorrelation coefficient (R2)

10.21700.16570.9959
2 [26]0.08950.20690.9455
3 [27]0.27400.39130.9305
4 [28]0.07611.16690.9829
5 [29]0.03890.02970.9965