Geotechnical study to assess the weir stability on high erodible soils

Abstract

Dwerige weir is a concrete hydraulic structure construct as flooding protect and water harvesting system for replenishment ground water in the area. The foundation comprised of highly erodible alluvial fan deposits. SEEP/W used to analysis foundation soil stability against piping erosion resulting from the water seeps. The two dimensions steady state model are selected, and saturated only materials used in the analysis. The results show that the soil need more actions to support the foundation during the weir economic life.