Modelización hidráulica de una red de alcantarillado con epa swwm 5.1

Abstract

The objective of this work is to carry out the hydraulic modeling of a sanitary sewer system and a combined system using EPA SWMM 5.1 and Excel software to determine network behavior. For the sanitary system, the design flows were obtained according to the project calculation memory. Subsequently, the schematization was done in the EPA SWMM 5.1 program using the EpaCAD software that allows exporting AutoCAD files to SWMM 5.1, then the required data for nodes are introduced which are: invert, max depth and design flow for pipe sections shape, max depth, length and coefficient n. Then the simulation is done and results are obtained. Then the calculation of network in the electronic sheet was performed to verify the main data such as speed, depth and tractive tension. For the combined system the subcatchment of the central part of the site were added to the model, the data to be entered in subcatchment are rain gage, discharge node, area, width, average slope, percentage of permeable area, coefficient n for impermeable soil, coefficient n for permeable soil, storage height in depression over the impermeable area, storage height in depression over the permeable area, percentage of impermeable soil that does not exhibit storage in depression, flow between sub-areas, percentage of flow and infiltration method. For the rain gage data, an intensities hietogram was used, obtained from data from the M0180 Zaruma station.