Study on Freezing-Thawing Failure Process of Natural Damage Sandstone Based on Cellular Automata

Table 1

Basic physical parameters of red sandstone.

Parameter	Numerical value
Elastic modulus (GPa)	1.66
Poisson’s ratio	0.2631
Saturation density (kg·m^-3)	2660
Dry density (kg·m^-3)	2312
Wave speed (km·s^-1)	3.832