Uso de pavimentos permeáveis como alternativa para um sistema sustentável de drenagem de águas pluviais

Abstract

The accelerated urbanization process and the unplanned growth of urban centers have significantly impacted the hydrological dynamics of cities, mainly due to the replacement of natural surfaces with impermeable coverings. This transformation increases surface runoff, contributing to flooding in urban areas. With advancements in green infrastructure and nature-based solutions, more sustainable alternatives to traditional urban drainage methods have emerged. In this context, this study aims to compare two distinct stormwater drainage design approaches: a conventional system with predominantly impermeable pavement, and another using permeable pavements as retention and infiltration devices. Through hydrological and hydraulic modeling of both designs, technical parameters such as flow rate, pipe sizing, and the need for control structures are analyzed. The study discusses the feasibility of using permeable interlocking concrete pavers as a compensatory solution for urban drainage systems, highlighting their advantages and limitations compared to traditional models. The results show physical differences, including a 13.37% reduction in peak flow with permeable pavement, and financial differences, with approximately 17% cost variation between the designed drainage networks. Thus, it is concluded that the use of permeable pavements with interlocking pavers offers several physical and financial benefits for drainage system projects.