Triaxial compression instability locus from available literature
| Source | Test type | Reference material name | Critical friction ratio |
|---|---|---|---|
| Yang (2002) | CIU triaxials | Leighton Buzzard sand | 1·24 |
| Toyoura sand | 1·19 | ||
| Imam et al. (2002) | CIU triaxials | Ottawa sand | 1·19 |
| Toyoura sand | 1·24 | ||
| Syncrude sand | 1·19 | ||
| Fraser River sand | 1·40 | ||
| Erksak sand | 1·24 | ||
| Chu et al. (2003) | CSD triaxials | Changi sand | 1·35 |
| Jefferies et al. (2019) | CIU triaxials | Silt gold tailings | 1·50 |
| Reid et al. (2021b) | CIU triaxials | Silt gold tailings | 1·46 |
| Reid et al. (2022c) | CAU triaxials | Silt gold tailings – coarse | 1·39 |
| Silt gold tailings – fine | 1·45 |
| Source | Test type | Reference material name | Critical friction ratio |
|---|---|---|---|
| CIU triaxials | Leighton Buzzard sand | 1·24 | |
| Toyoura sand | 1·19 | ||
| CIU triaxials | Ottawa sand | 1·19 | |
| Toyoura sand | 1·24 | ||
| Syncrude sand | 1·19 | ||
| Fraser River sand | 1·40 | ||
| Erksak sand | 1·24 | ||
| CSD triaxials | Changi sand | 1·35 | |
| CIU triaxials | Silt gold tailings | 1·50 | |
| CIU triaxials | Silt gold tailings | 1·46 | |
| CAU triaxials | Silt gold tailings – coarse | 1·39 | |
| Silt gold tailings – fine | 1·45 |
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