Avaliação do emprego de técnicas de drenagem urbana sustentável em reduzir o escoamento superficial.

Abstract

The urbanization process has become increasingly fast, so the union of a good urban planning with elements to collaborate with the increase of areas permeable help reduce or avoid problems related to urban drainage. In this context, comes in the pursuit of sustainable systems for urban drainage, trying to unite sustainability and efficiency, taking as an example the use of blocks interlocked concrete and grass block, that appear to contribute to the increase of the water infiltration process in the soil and consequently decrease of the runoff. The main objective of this work is to attest to the improvement in the drainage of rainwater after the use of interlocked concrete blocks and grass block in the parking lot located at the Federal University of Campina Grande. Campina Grande- PB. To this end, using the SWMM software, a computational model of parking was created before and after the renovation, inserting project showers with a return period of 10, 25, 50 and 100 years respectively. A test was also performed using an area simulating the parking surface composed of grass blocks, with the aid of a rain simulator was able to test the behavior of the grass block in relation to water retention. Then, the computational model and the assay presented a good water retention capacity, contributing to the decrease of the surface runoff, minimizing the peak flow rates.