| # PVD Consolidation Analysis Input File | |
| # All units: m, kPa, years | |
| # Soil layers (from top to bottom) | |
| soil_layers: | |
| - thickness: 5.0 # Layer thickness (m) | |
| Cv: 0.5 # Vertical coefficient of consolidation (m²/year) | |
| Ch: 1.5 # Horizontal coefficient of consolidation (m²/year) | |
| RR: 0.05 # Recompression ratio | |
| CR: 0.30 # Compression ratio | |
| sigma_ini: 50.0 # Initial effective stress (kPa) | |
| sigma_p: 80.0 # Preconsolidation pressure (kPa) | |
| - thickness: 8.0 | |
| Cv: 0.3 | |
| Ch: 1.0 | |
| RR: 0.04 | |
| CR: 0.35 | |
| sigma_ini: 90.0 | |
| sigma_p: 90.0 | |
| - thickness: 7.0 | |
| Cv: 0.4 | |
| Ch: 1.2 | |
| RR: 0.045 | |
| CR: 0.32 | |
| sigma_ini: 140.0 | |
| sigma_p: 150.0 | |
| # PVD installation properties | |
| pvd: | |
| dw: 0.05 # Equivalent diameter of drain (m) - typically 50-100 mm | |
| ds: 0.15 # Smear zone diameter (m) - typically 2-4 times dw | |
| De: | |
| 1.5 # Equivalent diameter of unit cell (m) | |
| # For triangular pattern: De = 1.05 × S | |
| # For square pattern: De = 1.13 × S | |
| # where S = drain spacing | |
| L_drain: | |
| 20.0 # Total drain length (m) | |
| # For two-way drainage: actual drain length | |
| # For one-way drainage: 2 × actual drain length | |
| kh: 2.0 # Horizontal permeability (m/year) | |
| ks: 1.0 # Smear zone permeability (m/year) - typically 0.5-0.67 × kh | |
| qw: | |
| 100.0 # Well discharge capacity (m³/year) | |
| # For negligible well resistance, use very large value (1e12) | |
| # Analysis parameters | |
| analysis: | |
| surcharge: 100.0 # Applied surcharge load (kPa) | |
| dt: 0.01 # Time step for finite difference (years) | |
| t_max: 20.0 # Maximum time for analysis (years) | |
| n_points: 200 # Number of points in settlement vs time curve | |
| # Time points to check in report (years) | |
| t_check: | |
| - 0.1 | |
| - 0.5 | |
| - 1.0 | |
| - 2.0 | |
| - 5.0 | |
| - 10.0 | |
| - 20.0 | |
| # Times to generate consolidation profiles (years) | |
| t_profiles: | |
| - 0.5 | |
| - 2.0 | |
| - 10.0 | |