Reference
Built-in soil presets
The typical parameters Slope offers when you add a material, each worked out from the clause it cites. In a design, add one from Materials → Quick add → Built-in soils; it keeps its citation, and the PDF report prints its caveats. Open any preset to see its working, or copy it into your engineering library.
Typical values — not a substitute for site investigation. Choose the values for your site from its own investigation and testing.
BS 8002:2015
12 presetsEach preset cites its own clause; open it for the source range and the working.
- Gravel, loose, rounded, evenly gradedγ 19.0 kN/m³γsat 21.0 kN/m³c′ 0.0 kPaφ′ 32.0°
- Gravel, medium dense, sub-angular, well gradedγ 20.0 kN/m³γsat 22.0 kN/m³c′ 0.0 kPaφ′ 36.0°
- Gravel, dense, angular, well gradedγ 21.0 kN/m³γsat 23.0 kN/m³c′ 0.0 kPaφ′ 38.0°
- Sand, loose, rounded, uniformγ 17.5 kN/m³γsat 20.0 kN/m³c′ 0.0 kPaφ′ 30.0°
- Sand, medium dense, sub-angular, evenly gradedγ 18.0 kN/m³γsat 20.5 kN/m³c′ 0.0 kPaφ′ 34.0°
- Sand, dense, sub-angular, well gradedγ 19.0 kN/m³γsat 21.5 kN/m³c′ 0.0 kPaφ′ 36.0°
- Sand, dense, angular, well gradedγ 19.0 kN/m³γsat 21.5 kN/m³c′ 0.0 kPaφ′ 38.0°
- Silt, IP 10γ 21.0 kN/m³γsat 21.5 kN/m³c′ 0.0 kPaφ′ 29.5°
- Clay, IP 15, medium strengthγ 20.5 kN/m³γsat 20.5 kN/m³c′ 0.0 kPaφ′ 27.0°
- Clay, IP 30, medium strengthγ 20.5 kN/m³γsat 20.5 kN/m³c′ 0.0 kPaφ′ 24.0°
- Clay, IP 50, medium strengthγ 20.5 kN/m³γsat 20.5 kN/m³c′ 0.0 kPaφ′ 21.0°
- Clay, IP 80, medium strengthγ 20.5 kN/m³γsat 20.5 kN/m³c′ 0.0 kPaφ′ 18.0°
Geoguide 1 (Hong Kong)
6 presetsEach preset cites its own clause; open it for the source range and the working.
- Compacted fill, completely decomposed granite (Hong Kong)γ 21.0 kN/m³γsat 21.6 kN/m³*c′ 0.0 kPaφ′ 38.0°
- Compacted fill, completely decomposed volcanics (Hong Kong)γ 21.0 kN/m³γsat 21.6 kN/m³*c′ 0.0 kPaφ′ 35.0°
- Crushed rock fill (Hong Kong)γ 21.0 kN/m³γsat 22.9 kN/m³*c′ 0.0 kPaφ′ 45.0°
- In-situ completely decomposed granite (Hong Kong)γ 21.0 kN/m³γsat 21.6 kN/m³*c′ 5.0 kPaφ′ 35.0°
- In-situ completely decomposed volcanics (Hong Kong)γ 21.0 kN/m³γsat 21.6 kN/m³*c′ 5.0 kPaφ′ 32.0°
- Colluvium, matrix (Hong Kong)γ 21.0 kN/m³γsat 21.6 kN/m³*c′ 0.0 kPaφ′ 26.0°
* γsat derived (Gs 2.65), not given by the source.