Table 1 A estimated critical angle of repose for several geo-materials41.
From: A novel empirical classification method for weak rock slope stability analysis
Materials | μs (o) | Materials | μs (o) | Materials | μs (o) |
|---|---|---|---|---|---|
Asphalt | 30–45 | Soil (general) | 30–45 | Gravel | 25–30 |
Dry clay | 25–40 | Granite | 35–40 | Dry sand | 34 |
Wet clay | 15 | Gravel (coarse) | 45 | Wet sand | 45 |
Snow | 38 | Chalk | 45 | Ash | 40 |
