Modeling of Transient Flow in Unsaturated Geomaterials for Rainfall-Induced Landslides Using a Novel Spacetime Collocation Method

Table 2

Unsaturated soil parameters used in the comparison example.

	This study	van Genuchten model	Iverson’s model
Slope angle (degree)		33
Soli thickness (m)		10
Simulation time (h)		2
Saturated hydraulic conductivity (m/h)
Other parameters

Notation: is the fitting parameter related to the modal pore size, is the fitting parameter related to the pore size distribution, and is the hydraulic diffusivity.