Nonlinear Dynamic Constitutive Model of Frozen Sandstone Based on Weibull Distribution

Table 1

Properties of sandstone at room temperature.

Sample	Density (kg/m^3)	Porosity (%)	Longitudinal wave velocity (m/s)	Uniaxial compressive strength (MPa)	Poisson’s ratio
Saturated	2182∼2251	22.6∼25.8	2419 ∼ 2501	7.85∼10.12	0.241∼0.286