Numerical Simulation Study of Variable-Mass Permeation of the Broken Rock Mass under Different Cementation Degrees

Table 1

Numerical simulation parameters.

Simulation parameter	Value
Water density	1,000 kg/m^3
Dynamic viscosity	1.01 × 10^3 Pa·s
Particle material density	2,400 kg/m^3
Circular pipe material density	7,850 kg/m^3
Large particle size	10∼20 mm
Small particle size	0∼10 mm
Total mass of generated particles	2,400 g
Filling height	180 mm
Inlet water pressure	0.05 MPa
Mass proportion of skeleton to filling substance	1 : 1