Determination of suitable shape of conduit for flow-pass in construction which located on Dam’bri hydropower project in Lam Dong province

Abstract

      The conduit for flow-pass in construction is a closed type component reserved for construction phase laid on main body of dam. This closed - type component is combined with other open - type for flow - pass in construction in case of constructing the main concrete gravity dam for various water resources and hydropower projects, especially this closed - type component is effectiveness in narrow site. Then determination of suitable shape of closed conduit that satisfying the safety of operation requirement is always highlighted when making design work for this component, with target of reducing the negative pressure may occur inside the component as well as raising the dischage capacity following the construction phase. Therefore this is purpose of the article to present the approach to detemine the suitable shape of the conduit in construction of DaM'Bri hydropower project in Lam Dong province