Table 1.
Mechanical and physical properties of the test soil.
Table 2.
Particle size distribution of the test soil.
Fig 1.
X-ray diffraction spectra of the tested GRS specimens.
Fig 2.
Schematic of moisture content changes in wet – dry cycles.
Fig 3.
Equipment and specimens in MIP test.
(a) Mercury porosimeter (b) Vacuum freeze drier (c) Freeze-dried specimens.
Fig 4.
(a) GEO-Experts pressure plate system (b) Insulated box in FPM (c) Equipment used in VEM.
Fig 5.
Cumulative pore volume curve of the sample.
Fig 6.
Pore size distribution (PSD).
Fig 7.
Matric suction measured of GRS at different wet-dry cycles.
Fig 8.
Fitting results of the SWCC for GRS in different wet-dry cycles based Li model.
Fig 9.
Relationship between fitting parameters of SWCC for GRS and wet-dry cycles.
Fig 10.
Saturated permeability coefficient curve of GRS.
Fig 11.
Effect of different step lengths on permeability coefficient of GRS.
Fig 12.
Unsaturated permeability coefficient curve of GRS.
Fig 13.
Relationship between unsaturated permeability coefficient and saturation of GRS.