Hydro-Mechanical Properties of an Unsaturated Frictional Material

6.2 Experimental results of soil-water characteristic curves from steady state tests
performed in the modified pressure plate apparatus (loose specimen-left, dense
specimen-right) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
6.3 Experimental results of soil-water characteristic curves including scanning
drainage and imbibition curves from steady state tests performed in the mod-
ified pressure plate apparatus (loose specimen-left, dense specimen-right) . . . . 118
6.4 Experimental results of soil-water characteristic curve applied with net stress
from steady state test in modified pressure plate apparatus (loose specimen-left,
dense specimen-right) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
6.5 Readings from tensiometers and TDR sensors linked to drainage and imbibition
soil-water characteristic curves from steady state column test I (loose and dense
specimen) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
6.6 Suction measurements for drainage and imbibition processes from transient
state column test I (loose specimen-top, dense specimen-bottom) . . . . . . . . 121
6.7 Example of volumetric water content measurements for drainage and imbibition
processes from transient state column test (loose specimen-top, dense specimen-
bottom) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
6.8 Readings from tensiometers and TDR sensors linked to drainage and imbibi-
tion soil-water characteristic curves from transient state column test I (loose
specimen-left, dense specimen-right) . . . . . . . . . . . . . . . . . . . . . . . . 124
6.9 Suction measurements for drainage process from transient state column test II
(loose specimen-left, dense specimen-right) . . . . . . . . . . . . . . . . . . . . . 126
6.10 Volumetric water content measurements for drainage process from transient
state column test II (loose specimen-left, dense specimen-right) . . . . . . . . . 126
6.11 Measurements of cumulative water outflow from transient state column test II
(loose and dense specimens) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
6.12 Readings from tensiometers and TDR sensors linked to drainage soil-water
characteristic curves from transient state column test II (loose specimen) . . . 127
6.13 Pore-water pressure and volumetric water content profiles for initial drainage
process (loose specimen) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
6.14 Pore-water pressure and volumetric water content profiles for 1 st drainage pro-
cess (loose specimen) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
6.15 Experimental results of one dimensional compression rebound test for constant
suction condition (loose specimen) . . . . . . . . . . . . . . . . . . . . . . . . . 130
6.16 Experimental results of one dimensional compression rebound test for constant
suction condition (dense specimen) . . . . . . . . . . . . . . . . . . . . . . . . . 131
6.17 Experimental results of collapse potential for loose specimen - Method 1 (left)
and Method 2 (right) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132