« TECHNIQUES DE MOBILISATION DES EAUX DE SURFACE

Divers types de barrages Le principe général d'un barrage est de barrer une vallée, plus ou moins encaissée, pour accumuler l'eau Cette accumulation peut avoir plusieurs objectifs Leurs caractéristiques géométriques et le principe de leur conception permettent aussi de regrouper les barrages en grandes familles

PLANNING AND DESIGN OF BARRAGE TYPE DIVERSION STRUCTURES ON

Table-2: Different types of energy dissipation arrangements Type of energy dissipation arrangement Relative merits and demerits (a)A classical Rectangular USBR type stilling basin (Bradley and Peterka, 1957) With Parallel Side Walls Not suitable for bouldery reaches of river with steep slope The cistern level will be

1 INTRODUCTION IJSER

different types of problems that could not be solved by classical algorithms, like when the objective function is discontinuous, or not differential, stochastic and/or nonlinear The GA does sequent steps in an iterative manner to converge at an optimal solution [4] GAs manipulate the design

DIVERSION HEADWORKS/ BARRAGE DESIGN

Types of Weir Weir may be of different types based on “materials of construction, design features and types of soil foundation as”; Vertical drop Weir o Vertical drop weir without a crest gate is shown in the enclosed figure “A crest gate may be provided to store more water during flood period” At the upstream and downstream ends of

LECTURE NOTES

Selection of site and layout, parts of diversion head-works, types of weirs and barrages, design of weirs on permeable foundations, control of silt entry into canal, silt excluders and different types of silt ejectors 1 1 Definition A structure constructed at the junction of the source (river, dam, canal) and the off taking canal

pdf hydroelectric 2 - Eniscuola

Barrages Barrages intercept the watercourse in a specific area There can be two different types of barrages which differ according to their dimensions: dams or weirs Dams Dams are high works that, as well as intercepting the watercourse, create a tank that is useful to regulate the flow rate They can be hundreds of metres high

IS 6966-1 (1989): Hydraulic design of barrages and weirs

Foundations on which barrages and weirs have to be constructed may be permeable or impermeable The criteria for hydraulic design will be different for different reaches This standard has been formulated for alluvial reaches which is a permeable foundation For other types of reaches, namely, clayee reaches,

IS 14248 (1995): Guidelines for instrumentation of barrages

5 5 Displacement of the Different Units of the Barrage Structure Relative displacements can be observed by installing jointmeters at vulnerable locations for example at the toe of the abutments, at the expansion joints in between the bays, etc Two types of jointmeters are available, namely (a)