| Parameter | Value | |-----------|-------| | Span (clear inside) | 3.0 m | | Height (clear inside) | 2.0 m | | Wall / slab thickness | 0.25 m | | Cover above top slab | 1.5 m | | Soil unit weight (γ_soil) | 20 kN/m³ | | Backfill angle of friction (φ') | 30° | | Concrete class | C30/37 | | Steel grade | B500C | | Groundwater table | Below base slab |
The governing limit states:
: