671017.pdf

Another parameter that must be added to the above relation is the rolling strength of the granular material. Oda et al. [ 25 ] a ...

0 20 40 60 80 100 8 9 10 11 12 13 14 15 Shear stren gt h rat io at fai lure Fabri c ani sot ropy Fabric anisotropy Bedding angle ...

0 123456 5 0 5 0 0 5 0 5 0 Experimental data Simulation Shear strain (%) Tilting angle90 or bedding angle0 Shear stress rat ...

0 1 234 5 67 5 0 5 0 0 5 0 5 0 Experimental data Simulation Shear strain (%) Tilting angle90 or bedding angle0 Shear st ress ...

[5] M. Pastor, “Modelling of anisotropic sand behaviour,”Comput- ers and Geotechnics, vol. 11, no. 3, pp. 173–208, 1991. [6] S. ...

Hindawi Publishing Corporation Journal of Applied Mathematics Volume 2013, Article ID 537185, 15 pages http://dx.doi.org/10.1155 ...

the mechanical and hydraulic behaviors are addressed in an uncoupled way. Wheeler and Sivakumar [ 5 ]havepointedthat uncoupled m ...

(a) (b) Figure 1: CT images of moisture distribution in the unsaturated Estaillades limestone at saturation of 92%: (a) prepared ...

be different, depending upon the wetting/drying history of the soil. Indeed, it has been very well recognized in the community o ...

Pore air (a) Bulk water M eniscus water (b) Figure 2: Effect of hydraulic history on the moisture distribution: (a) idealized mo ...

4 0. 6 0. 8 0 100 200 300 400 500 2 4 6 Drying Wetting Measured sc (kPa) Sr h (a) 1234567 0 150 300 450 Drying Wetting Mea ...

The capillary-induced hardening is described by ( 10 ), while the plastic volumetric strain hardening is given by 푝푐 0 (휀푝V)=푝푐∗ ...

60 75 90 105 1 10 100 1000 0.517(0.000) 0.514(0.002) 0.474(0.028) 0.444(0.048) =13,000kPa M easured Predicted Sr(%) sc (kPa) e(p ...

10 100 1000 1 2 3 Loading aer wetting-drying Loading without wetting-drying G F E D C B A pnet(kPa) (a) 10 100 1000 10 15 2 ...

pnet(kPa) 0 50 100 150 200 0 150 300 Path II C E ADB ABCE ABDE sc Path I (kPa) (a) Predicted Measured 0 100 200 2 4 C E D B ...

0 50 100 150 0 100 200 300 ABCD ABE B A E C D pnet=196kPa sc(kPa) q( kPa) − 100 Figure 8: Stress paths used in the triaxial test ...

0.00. 1 5 4 3 2 −0. 1 5 10 3 1 (%) / 1 3 Measured Predicted (a) Measured Predicted 55 56 57 58 59 1 2 3 4 / 1 3 Sr(%) (b) Figure ...

0.00. 2 4 10 2 B C 3 1 5 3 (^31) A (%) / 1 3 p−ua=196kPa sc=147kPa 0 D (a) 60 75 90 105 1 2 3 D C B A Measured Predicted / 1 3 S ...

Table 3: Hydraulic parameters of Pearl clay. 푏DR^0 (kPa)푏WT^0 (kPa)푑^0 DR 푑^0 WT 푆irr푟 푐(kPa)훼DR(kPa)훼WT(kPa) 181.15 43.35 1.2 0 ...

[25] X. S. Li, “Thermodynamics-based constitutive framework for unsaturatedsoils.1:theory,”G ́eotechnique,vol.57,no.5,pp.411– 42 ...