Table 3 Coefficient conclusion of the fitting lines and comparison between the fitted and theoretical critical shear stress values.
From: Estimating the critical shear stress for incipient particle motion of a cohesive soil slope
Slope gradient θ (°) | Fitting values from parameters | Theoretical values of critical shear stress τc,t (Pa) | Relative error (%) | |
|---|---|---|---|---|
Erodibility coefficient kd (× 10−4 s/m) | Critical shear stress τc,e (Pa) | |||
26.6 | 3.3584 | 10.57 | 9.33 | 11.73 |
29.7 | 3.1392 | 9.52 | 9.32 | 2.10 |
33.7 | 3.2245 | 10.14 | 9.31 | 8.19 |
38.7 | 4.0063 | 12.16 | 9.30 | 23.52 |
