Análise comparativa de sistemas de drenagem compensatórias: vala de infiltração e jardim de chuva

Abstract

Compensatory drainage techniques are measures whose purpose is to complement classical drainage systems. Since the existing urban ifrastructure is outdated, and the conduits are insufficient to meet the volume of raindwater theyreceive. The objective of the present work is to carry out a comparative analysis between two compensatory drainage systems: the infiltration ditch and the rain Garden, based on hydraulic, hydrological, economic and social criteia. The reserch was carried out in the city of Campo Mourão, on the Federal Technological University of Paraná. From infiltration tests carried out in two diferente prototypes and in university woods, it was possible to measure the best performace compensatory technique in both dry and wet soil, thus obtaining that the infiltration trench is the most advantageous alternative, with na overall accumulated infiltration of 148,65% higher than rain Garden.