Research on selecting subsidiary structures of absorption basin of spillway dam

Abstract

    Flood discharging system is (often) an essential part of a key water control construction project. To settle the problem of hydraulic connection following the spillway is crucial in flood-discharging structure planning. Bottom flow energy dissipation (BFED), one type of hydraulic connection which depends on dam-bottom flows of water to dissipate flood energy, often includes an energy dissipating basin or absorption basin with many subsidiary structures, whose types are often selected after conducting model experiments.

   This article of describes structural types of two absorption basins of Nuoc Trong and Ta Trach projects. Basing on many experiment data of Vietnam Academy for Water Resources, the article presents a summary of a practical study on selecting subsidiary energy dissipating structures of two

absorption basins in Nuoc Trong and Ta Trach construction projects.