Resumo

FUENTES-MARILES, Óscar Arturo; GRACIA-SANCHEZ, Jesús; CHOMPA-ABARCA, Juan Antonio  e  LUNA-CRUZ, Faustino De. Predesign of an urban rainfall drainage network with genetic algorithms. Ing. invest. y tecnol. [online]. 2023, vol.24, n.3.  Epub 17-Nov-2023. ISSN 2594-0732.  https://doi.org/10.22201/fi.25940732e.2023.24.3.021.

The predesign of an urban storm drainage network is proposed with an optimization method that consists of two parts, in one the connection of the manholes is proposed so that there is little water path in its pipes and in the other, It is based on a genetic algorithm to find the lowest acquisition cost of the pipes and the excavation necessary for their installation, complying with various hydraulic and constructive restrictions recommended in construction manuals for networks of this type. The procedure described involves the connection of the pipes that make up the network (line of the network), ensuring that the smallest sum of the lengths of them is obtained. The conduits are considered to be circular in section where their diameters only take commercial values. The slope of each pipe of the network is calculated trying that the hydraulic depth of the water flow (tie) is 80 % of the diameter, to approximate the capacity of conducting the flow of the liquid inside. Finally, its application to a real case is shown and the hydraulic operation of the designed network is reviewed, simulating with the EPA-SWMM 5.1.015 model the non-permanent free surface flow in the network to ensure that the hydraulic restrictions and the hypotheses planted with permanent flow.

Palavras-chave : Design; drainage network; rainwater; sewerage; genetic algorithm; non-permanent flow in free Surface.