RESERVOIR SEDIMENTATION ASSESSMENT GUIDELINE - Aneel

More documents

Recommendations

Info

Reservoir Sedimentation Assessment GuidelineFigure 11.3 – Location in depth points measured along a cross-section with teodolitesPosição = positionReservatório = reservoirPosição do barco no instante de observação com o teodolito = position of boat during observation with teodoliteMarcos de levantamento nas extremidades da linha = survey marks on the line endsMargem = bankPosição do teodolito = tedolite positionFigure 11.4 – Schedule for survey operation through electronic system(Bruk, 1985)Estação remota de resposta = response remote stationTransmissor = transmitterAntena = antennaEquipamento de controle = control equipmentRelógio = clockEcobatímetro = echobathymeterIndicador de rota = routerGravador = recorderRegistrador de rota = route registerSinal de sonda de profundidade = probe signalANEEL – Brazilian Electricity Regulatory Agency / SIH – Hydrologic Studies and Information Department58
Reservoir Sedimentation Assessment GuidelineFigure 11.5 – Positioning of fixed and mobile stations on the survey electronic systemEstação remota = remote stationBase = basisÁrea de melhor cobertura = best coverage areaSelection of sections to be surveyed – It is intended to densify the sections in order toobtain the suitable accuracy for drawing isobaths on the map with the selected scale. Forsmall reservoirs, it is usually drawn on a sheet containing the whole lake, which canreport a size similar to those maps presented by IBGE or the maximum of 1,0x1,0m. Forlarge reservoirs, maps will be presented in more than one sheet, displaying thearticulation draw. The scale must be suitable for both quality and accuracy required;therefore, according to DHN’s (from the Brazilian Navy) orientation, the sections forthe draws must be 1,0cm far one from another. Table 11.3 presents a guideline.Table 11.3 – Distance of cross-sectionsMap scale Distance betweensections (m)Kind of Reservoir1 : 2.000 20 Small1 : 5.000 50 Medium1 : 10.000 100 Medium to large1 : 20.000 200 Large1: 25 000 250 LargeNoteAllows for drawingsections at every 1,0cmin the mapIf the bed does not report major variations, a greater distance may be adopted,such as 2,0 or 3,0cm between cross-sections in the draw (the map scale is divided by100 to provide such distance). Figures 11.6 e 11.7 present schedules for survey in smalland large reservoirs (Vanoni, 1977).ANEEL – Brazilian Electricity Regulatory Agency / SIH – Hydrologic Studies and Information Department59
Page 1 and 2:
BRAZILIAN ELECTRICITY REGULATORY AG
Page 3 and 4:
Reservoir Sedimentation Assessment
Page 5 and 6:
Reservoir Sedimentation Assessment
Page 7 and 8: Reservoir Sedimentation Assessment
Page 57: Reservoir Sedimentation Assessment
Page 101: Reservoir Sedimentation Assessment
show all

RESERVOIR SEDIMENTATION ASSESSMENT GUIDELINE - Aneel

Create successful ePaper yourself

Delete template?

Save as template?