Analysis tools for ground-related structures and improvement.
Retaining wall
- Embedded retaining wall
Foundation
- Beam on elastic foundation
- Pile foundation
Tunnels
- Boxed tunnel
- Bored tunnel
- Mined tunnel
Ground improvement
- PVD
- DSM
Slope stability
- Slope stability To be developed
Gravity Wall Stability
Geometry
Rubble base
Water, loads and concrete
Soil layers characteristic values · bulk γ (γ − 10 used below water)
| Layer | Level (m) | γ kN/m³ | c′ kPa | φ′ deg | cu kPa |
|---|---|---|---|---|---|
| 1 Backfill | – | ||||
| 2 Embedment ds | – | ||||
| 3 Beside slab dc | – | ||||
| 4 Foundation | – |
Interface friction and passive
δ = ratio × φ′d (wall back, wall front, base). fp = fraction of passive relied on; Δa = unplanned lowering of front ground (EC7 9.3.2.2).
| Combination | γQ | γG,sup | γG,inf | γR,c′ | γR,φ′ | γR,cu |
|---|---|---|---|---|---|---|
| EC7-DA1C1 | ||||||
| EC7-DA1C2 |
Both combinations are calculated. γR,c′, γR,φ′, γR,cu divide c′, tan φ′, cu; γR,v = γR,h = 1.0.
Required factors of safety (editable). All loads and soil parameters un-factored.
Shallow Footing – Bearing Capacity
Geometry
Loads per footing
| Loads at column top | Fv kN | Fh kN | M kNm |
|---|---|---|---|
| Permanent (G) | |||
| Variable (Q) |
Fh and M act in the B direction at the top of the column (h above ground); positive as drawn.
Soil layers characteristic values
| Layer | Condition | γ kN/m³ | c′ kPa | φ′ deg | cu kPa |
|---|---|---|---|---|---|
| 1 Foundation soil | |||||
| 2 Hardcore / gravel | Drained | – |
Bulk unit weights; γ − 10 is used below the water table. Layer 1 also fills above the footing.
Calculation method
| Combination | γQ | γG,sup | γG,inf | γR,c′ | γR,φ′ | γR,cu |
|---|---|---|---|---|---|---|
| EC7-DA1C1 | ||||||
| EC7-DA1C2 |
Both combinations are calculated. Bearing: permanent loads × γG,sup, variable × γQ. Sliding: vertical permanent × γG,inf, vertical variable ignored, horizontal × γG,sup / γQ.
Required factors of safety (editable). All loads and soil parameters un-factored.