Rodrigo Concha Jopia FLUMEN Research Group Technical University of Catalonia Barcelona TECH

 Don’t forget to do a small report including:  catchment discretization FINISHED  calibration/validation FINISHED,  sewer network diagnosis for a T return period design rainfall (hopefully finished…)  This report has to be uploaded tomorrow Wednesday afternoon  T has been changed:  Team 1: 10 years  Team 2: 15 years  Team 3: 20 years  Team 4: 25 years

After the diagnosis of the La Riereta sewer network (analysis under a T year return period rainfall) each team has to perform a particular analysis. These specific tasks are detailed next

Network rehabilitation changing sewer characteristics: cross sections (shape and dimensions), slopes and materials  Do not change the plant layout of sewer network  Try to reduce the flooding volume (hopefully 0)  Hydraulic performance of restored network should be better than the non-restored one  Try that all network works under free surface flow

Network rehabilitation using detention basins  Use of Storage Unit and Weir/Orifice/Pump SWMM 5’objects  Try to reduce the flooding volume (hopefully 0)  Hydraulic performance of restored network should be better than the non-restored one

Network rehabilitation using detention basins  Use of Storage Unit and Weir/Orifice/Pump SWMM 5’objects  Define initial properties:  SU: max depth, d/As relationship  Outlet Regulators: cross sections, dimensions, discharge coefficients

Network rehabilitation changing the impervious surface catchment area  Use of catchment representation method  Some LIDs: infiltration trenches, porous pavements, vegetative swales, etc.  Try to reduce the flooding volume (Hopefully 0)  Hydraulic performance of restored network should be better than the non-restored one

Network rehabilitation changing the impervious surface catchment area  catchment representation method

Network analysis using a 3-year rainfall time serie data, and to find the network sewer security level for surchage and for flooding  Make a continuous simulation; consider evaporation losses  Use of Statistical tool of SWMM 5 for analysis purposes: flooding frecuency)  Rainfall analysis: consider duration, mean intensity, volume and peak intensity

Network analysis using a 3-year rainfall time serie data, and to find the network sewer security level for surchage and for flooding  Use of Statistical tool of SWMM 5 for analysis purposes: flooding frecuency)

More details about modelling using SWMM 5 can be found in Storm Water Management Model Applications Manual It can be downloaded from the official SWMM web page