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Study of the case “La Riereta ” Urban Drainage basin

Study of the case “La Riereta ” Urban Drainage basin. Team 1 Maximiliano Cavenaghi Kattia Arnez Ferrel Diego Alves Melo Jorge Marega Ramiro Marcus. Methodology. Delimitation and discretization of study area. Determination of hydraulic parameters. Determination of effective rainfall.

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Study of the case “La Riereta ” Urban Drainage basin

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  1. Study of the case “La Riereta”Urban Drainage basin Team 1 MaximilianoCavenaghi KattiaArnezFerrel Diego Alves Melo Jorge Marega Ramiro Marcus

  2. Methodology • Delimitation and discretization of study area. • Determination of hydraulic parameters. • Determination of effective rainfall. • Obtaining the storm design. • Modelation with the SWMM program. • Modification to the drainage system.

  3. Study Area- “La Riereta” Basin • Total area: 17.99 Hectares • High percentage of impervious areas • Combined sewer system • Circular Sections • Concrete

  4. Discretization of basin • Total Sub basins: 18 • Basin Roughness: 0.0015 • Conduit Roughness: 0.01

  5. Calibration Fidel event Determination of effective rainfall PT=PE+PP For the cablibration the N impervious was changed to 0.0015 and also the time steps.

  6. ValidationJordi and Martina Event Jordi Event Martina event

  7. Design Torment • T= 10 Años • D= 1 Hora

  8. Problems in the drainage system

  9. Problems in the drainage system

  10. Solution Proposal

  11. Solution Proposal Tiempo de inundación N-31 15 min Tiempo de inundación N-33 55 min Tiempo de inundación N-31 1 min Tiempo de inundación N-33 1 min Area 1

  12. Solution Proposal Flooding time:12 min Floodingtime:1 min Area 2

  13. Solution Proposal Tiempo de inundación 5 min Tiempo de inundación 2 min Area 3

  14. Conclusion • Flooding succesfullycontrolledwiththeproposedalternatives. • New drainagesystemlarger and more expensivethanthecurrentsystem. • Spots with flooding ocurring for a minimum time • Integration of various techniques in order to minimize costs and impacts of drainage works in urban areas

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