Fractal Analysis of Failure Process and Damage Evolution of Jointed Sandstone Based on DIP Technique

Table 1

Material mechanical parameters of jointed sandstone.

Material	Elastic modulus (GPa)	Compressive strength (MPa)	Poisson ratio	Compression-tension ratio	Internal friction angle (C°)
Sandstone	108.2	118	0.16	14	35
Calcite	80.5	101	0.303	11	30