Table 2 Friction coefficients between the strata and side wall of caisson.
Strata | Friction coefficient | Stratum thickness(m) |
|---|---|---|
heavy silty Q3 loam | 0.29 | 7.2 |
heavy silty Q2 loam | 0.31 | 7.2 |
fully weathered Cretaceous argillaceous sandstone | 0.35 | 1.1 |
strongly weathered Cretaceous argillaceous sandstone | 0.45 | 5.6 |
moderately weathered Cretaceous argillaceous sandstone | 0.5 | 7.4 |
