Água conecta infraestrutura hídrica e de transporte em ambiente urbano: clima, hidrologia e pavimentos.

Abstract

This work presents a methodology to connect the different variables and models that integrate water and transport infrastructure in the urban environment, aiming at understanding how climate and water can affect the performance of engineering projects. For the application of the methodology, the city of Fortaleza / CE was selected as a case study. The present proposal consists in the coupling of the models: climatic, hydrological, infiltration (unsaturated flow in porous medium) and pavement structural model. Initially the connection variables between the systems were defined and then the modeling was performed. For the climatic model, two precipitation conditions were considered: rainfall equation for the city and historical series of precipitations. Flow modeling in the porous medium was done using the Rocscience Slide 6.0 program using the hydromechanical characteristics of the materials. For the studied conditions, the precipitations generate variations of humidity in the layers of the pavement of up to 78.2%, which can lead to reductions in the resistance of the layers of the pavement, thus compromising its performance. Based on the results, the proposal proved to be a simple application, with the use of variables well established within the technical literature.