Modelagem da capacidade de infiltração de diferentes cenários de pavimentos permeáveis na bacia do Una - Belém-PA

Abstract

Permeable concrete is an important alternative for sustainable construction, being used to preserve water quality and restore soil infiltration properties. To analyze this behavior, a study was conducted to analyze the infiltration capacity of different permeable sidewalk scenarios in the Três de Maio sub-basin located in Belém do Pará using SWMM software. To this end, characteristics were stipulated such as the effect of sidewalk thickness on infiltration rate, base thickness on infiltration rate, the effect of permeable sidewalk area on infiltration rate, and water catchment potential in the proposed scenarios. The scenarios were divided into nine drainage system arrangements, distributed into three thicknesses for the base course (100 mm, 200 mm and 300 mm) and 3 three for the permeable concrete sidewalk reservoir (300 mm, 400 mm and 500 mm). With the insertion of permeable sidewalk it was noticed that all the modeled scenarios obtained significant benefits, however, the application of permeable concrete thickness variation did not obtain significant influence on the infiltration rate keeping its results constant. The use of permeable sidewalk has a great potential for water catchment in all scenarios, showing promise to be applied in areas with a low degree of permeability, especially in the sub-basins that make up the Una basin in Belém do Pará, which suffer from flooding and inundation due to urban sealing and the outdated drainage network.