first report team 1: ana caroline pitzer jacob jaime torrico acha jonatan roberto vanesa lucana...
TRANSCRIPT
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FIRST REPORTTEAM 1:ANA CAROLINE PITZER JACOB
JAIME TORRICO ACHA
JONATAN ROBERTO
VANESA LUCANA BARRAL
TEAM 1
STUDY OF THE DRAINAGE NETWORK OF AN URBAN CATCHMENT
LA RIERETA, SANT BOI DE LLOBREGATSPAIN
Thursday, july 14th 2011
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OBJECTIVES
• Discretization of the basin (physical parameters);• Determination of hydraulic parameters of the basin;•Determination of effective rainfall;•Calibration and validation of hydrological-hydraulic model of Riereta basin;•Modeling with the design rain and diagnosis of hydraulic operation according to the results;•Changes and/or alterations of drainage network in accordance with operational hydraulics criteria, maintaining the current network.
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Basin Characterists
•Urban basin•16,07 ha•Highly impervious area
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SUBCATCHMENTS DISCRETIZATION
•Generation of contour map•Obtaining coordinates and elevations (interpolation)•Location and delimitation of the basin
•Definition of the subcatchments•Obtaining lengths of pipes
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DEFINITION AND INPUT OF HYDROLOGICAL PARAMETERS
Variables
• % Slope = Terrain• % Imperv = 90• % Zero- Imperv = 50• Drying Time= 0.3 • N-Imperv = 0.017• N-Perv = 0.025
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Ven T. Chow
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Determination of Width"W"
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EQUATIONS
Sk = (A2 – A1) / A
W = (2 – Sk) * l
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LOSSES METHODS:
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• CN=98
• PL= 1.83 mm/h
Curve Number method Horton method
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MODEL CONSTRUCTIONLa Riereta Model
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MODEL CALIBRATION
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• Flow Diagram of the calibration process
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RESULT ANALYSIS
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N
Comparison between Efren rain event outflow and the prognostic generated by the SWMM model
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THANK YOUGRACIAS
OBRIGADO
Calibration in progress…………………………