Eurocode 7
Eurocode 7 — Design Approach 3
EN 1997-1:2004+A1:2013Revision 2Required FoS ≥ 1
Use it in Slope
In a design, choose it under Analyze → Design factor set, and the PDF report runs it too.
Checked against the standard · Not yet validated
Known limitations
- Variable loads are taken at their characteristic value; ψ factors (EN 1990) are not applied.
- Tendon, bar, plate, nail, layer and pile capacities are not factored: EN 1997-1 gives a factor only for an anchor's geotechnical pull-out (Table A.19).
Values
Actions
| Soil weightγ | Unfavorable | ×1.00 |
| Favorable | ×1.00 | |
| Permanent loadγG | Unfavorable | ×1.00 |
| Favorable | ×1.00 | |
| Variable loadγQ | Unfavorable | ×1.30 |
| Favorable | ×0.00 | |
| Seismic coefficientγE | ×1.00 | |
Resistance
| Earth / global resistanceγRe | ÷1.00 | |
Materials
| Effective cohesionγc′ | ÷1.25 | |
| Friction (tanφ′)γφ | ÷1.25 | |
| Undrained strength (cu)γcu | ÷1.40 | |
| Shear strength (other models)— | ÷1.25 | |
Reinforcement
| Anchor — pull-outγpo | ÷1.00 | |
Sources
Document: EN 1997-1:2004+A1:2013
Actions
| Factor | Value | Source |
|---|---|---|
| Soil weight — unfavorable | ×1.00 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
| Soil weight — favorable | ×1.00 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
| Permanent load — unfavorable | ×1.00 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
| Permanent load — favorable | ×1.00 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
| Variable load — unfavorable | ×1.30 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
| Variable load — favorable | ×0.00 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
| Seismic coefficient | ×1.00 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
Materials
| Factor | Value | Source |
|---|---|---|
| Effective cohesion | ÷1.25 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
| Friction (tanφ′) | ÷1.25 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
| Undrained strength (cu) | ÷1.40 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
| Shear strength (other models) | ÷1.25 | A.3.2(1)P, Table A.4, PDF p136 · Slope convention · Not yet validated — EC7 gives γqu = 1.4 only for unconfined-strength models; other strength models take the M2 general 1.25. |
Resistance
| Factor | Value | Source |
|---|---|---|
| Earth / global resistance | ÷1.00 | 2.4.7.3.4.4, Tables A.3, A.4, A.14, A.19 · Not yet validated |
Reinforcement
| Factor | Value | Source |
|---|---|---|
| Anchor — pull-out | ÷1.00 | A.6(2)P, Table A.19, R3, PDF p144 · Not yet validated |