Research Article
Flexible Temporary Shield in Soft and Sensitive Clay: 3D FE Modelling of Experimental Field Test
Table 10
Properties of Louiseville soil and hardening soil (HS) material model parameters used for FE modelling.
| | Parameter/properties | PLAXIS-3D nomenclature (unit) | Fissured brown clay | Plastic brown clay | Sensitive blue clay |
| | Depth of layer | m | 0.0-0.6 | 0.6-2 | 2-15 | | Material model | Model | HS | HS | HS | | Drainage type | Type | Undrained B | Undrained B | Undrained B | | Unit wt. above phreatic level | (kN/m3) | 16 | 16 | 16 | | Unit wt. below phreatic level | (kN/m3) | 17 | 17 | 17 | | Secant stiffness for CD triaxial test | (kN/m2) | | | | | Tangent oedometer stiffness | (kN/m2) | | | | | Unloading/reloading stiffness | (kN/m2) | | | | | Power for stress level dependency of stiffness | m | 1 | 1 | 1 | | Shear strength of soil | (kPa) | 29 | 29 | 38 | | Cohesion | (kN/m2) | 5 | 5 | 5 | | Frictional angle | Ǿ (°(degree)) | 28 | 28 | 28 | | Dilatancy angle | (°(degree)) | 0 | 0 | 0 | | Poisson’s ratio | | 0.3 | 0.3 | 0.3 | | Interface reduction factor | | 0.65 | 0.5 | 0.5 | | Initial determination | | 0.53 | 0.53 | 0.53 | | Overconsolidation ratio | OCR | 1.5 | 1.5 | 3 | | Preoverburden pressure | POP (kN/m2) | 0 | 0 | 0 | | Soil type | | | | Very fine | | <2 mμ | % | 10 | 10 | 74 | | 2 mμ-50 mμ | % | 13 | 13 | 11 |
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