Earth Pressure Coefficients: granular_dense
Earth pressure coefficients (Ka, K0, Kp) by soil category and friction angle for retaining wall and excavation design
| soil category | phi deg | K0 (dimensionless) | Ka (dimensionless) | Kp (dimensionless) | cohesion kPa (kPa) | cohesion psf (psf) | delta wall friction deg (deg) | description | gamma kN m3 (kN/m3) | gamma pcf (pcf) |
|---|---|---|---|---|---|---|---|---|---|---|
| granular_dense | 40 | 0.3572 | 0.2174 | 4.5989 | 0 | 0 | 27 | Dense sand/gravel, well compacted | 21 | 134 |
| granular_dense | 42 | 0.3312 | 0.1982 | 5.0446 | 0 | 0 | 28 | Dense sand/gravel, well compacted | 21.5 | 137 |
| granular_dense | 45 | 0.2929 | 0.1716 | 5.8284 | 0 | 0 | 30 | Very dense sand/gravel | 22 | 140 |
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clay_high_plasticity3 rowsclay_low_plasticity3 rowscohesive_medium3 rowscohesive_soft3 rowscohesive_stiff3 rowscohesive_undrained_hard1 rowcohesive_undrained_medium1 rowcohesive_undrained_soft1 rowcohesive_undrained_stiff1 rowcohesive_undrained_very_stiff1 rowgranular_loose3 rowsgranular_medium3 rows