2025 Volume 25 Issue 5 Pages 5_92-5_105
The procedures of the assessment of the seismic safety of agricultural reservoir embankments and implementation of countermeasures are described. The slip analysis by Newmark-D method and the residual deformation analysis by non-linear FEM, both accounting for significant effects of compaction on undrained shear strength of saturated soil and its reduction during seismic loading, are reported. By these methods, the collapse of a reservoir embankment by strong seismic loads was successfully simulated, while a high stability against level 2 seismic load of the restored embankment was confirmed. The new dam was constructed by effective compaction controlling the degree of saturation in addition to the dry density and water content.
