Laboratory Experiment and Numerical Analysis on the Precursory Hydraulic Process of Rainfall-Induced Slope Failure

Table 1

Geotechnical engineering properties of Jumunjin standard sand.

Description	Symbol	Measured value
Specific gravity	Gs	2.621
Max. dry density	γd·max	1.613 g/cm^3
Min. dry density	γd·min	1.366 g/cm^3
Effective particle size	D10	0.42 mm
Uniformity coefficient	Cu	1.5
Coefficient of curvature	Cc	1.0
Soil classification	USCS	SP
Internal frictional angle	Φ′	41.2°