Analysis of the Elastic-Plastic Theoretical Model of the Pull-Out Interface between Geosynthetics and Tailings

Table 1

The technology parameters of the geogrids.

Mechanical parameters of the staple fibre needling geotextiles	Technical index	Mechanical parameters of the TGSG35 geogrid		Technical index
Longitudinal and transverse fracture strength (kN·m^−1)	30	Tensile strength (kN·m^−1)	Radial, zonal	35
Elongation corresponding to the standard strength (%)	40～80	Nominal elongation (%)	Radial	15
CBR breaking strength ≥ (kN)	13		Zonal	13
Longitudinal and transverse tearing strength ≥ (kN)	12	Tensile strength at 2% elongation ≥ (kN·m^−1)	Radial	12
Equivalent aperture (mm)	0.05～0.2		Zonal	12
Vertical permeability coefficient (cm·s^−1)	1.0 × 10^−3	Tensile strength at 5% elongation ≥ (kN·m^−1)	Radial	24
Thickness (mm)	4.2		Zonal	24