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Hydro-Mechanical Properties of an Unsaturated Frictional Material

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218<br />

APPENDIX B. SOIL-WATER CHARACTERISTIC CURVE - EXPERIMENTAL<br />

RESULTS AND BEST FITS<br />

Volumetric water content (%)<br />

Saturation (-)<br />

50<br />

40<br />

30<br />

20<br />

10<br />

0<br />

1.0<br />

0.8<br />

0.6<br />

0.4<br />

0.2<br />

0.0<br />

Experimental results -<br />

drainage<br />

Best fit Fredlund <strong>an</strong>d<br />

Xing (1994)<br />

Experimental results -<br />

imbibition<br />

Best fit Fredlund <strong>an</strong>d<br />

Xing (1994)<br />

0 1 10 100<br />

Suction (kPa)<br />

0 1 10 100<br />

Suction (kPa)<br />

Figure B.1: Experimental results <strong>an</strong>d best fit (Fredlund <strong>an</strong>d Xing 1994) for drainage <strong>an</strong>d<br />

imbibition process from modified pressure plate apparatus (loose specimen, steady state test)

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