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Buoyancy reduction coefficient of fine sand in hydrostatic state.
| Test gradient | Stable water supply head (mm) | Stable buoyant water head (mm) | Reduction coefficient |
|---|---|---|---|
| Gradient 1 | 94 | 90 | 0.957 |
| Gradient 2 | 195 | 190 | 0.974 |
| Gradient 3 | 305 | 300 | 0.983 |
| Gradient 4 | 386.5 | 381 | 0.986 |
