Análise da eficiência dos pavimentos permeáveis de blocos de concreto intertravados em Campo Mourão-PR para controle de escoamento pluvial

Abstract

The increasing urbanization in the last decades has significantly altered the hydrological cycle in urban centers, increasing the runoff coefficient, reducing infiltration and generating a great increase in flow volume. As a result, urban drainage problems arise, such as flooding and erosion problems at the end of the pipeline. Therefore, it is possible to note that drainage systems were ineffective, evidencing the need for new solution studies. With the objective of presenting a more sustainable and assertive solution for the municipality of Campo Mourão in the state of Paraná (PR), this work aims to evaluate the flow control through an infiltration device, through permeable pavements. To this end, the experiments were carried out at the Federal Technological University of Paraná Campo Mourão campus. In this area, soil infiltration and texture tests were performed. A rainfall simulator was built and three surfaces were tested: permeable concrete paver, concrete paver and natural soil. On each surface, the maximum precipitation was calculated based on the city’s IDF curve. From the volume of precipitation projected and the drained volume collected, it was possible to calculate the runoff coefficient for each specific surface. By analyzing the infiltration rate and the flow coefficients generated, it is possible to state that permeable pavements is a viable solution for flow control, taking into account the UTFPR campus’s local conditions, rendering the hydrological cycle closer to a pre-urbanization condition.