Estudo preliminar do escoamento superficial para um sistema de drenagem no bairro de Bunhiça, cidade da Matola

Abstract

The surface runoff of rainwater on the ground gives rise to water lines that in turn cause negative impacts on the lives of the population due to economic, social and environmental losses that occur with their occurrence. In the neighborhood of Bunhiça, when it rains with greater intensity and frequency, floods occur and their severe impacts are due to the lack of territorial organization and the disorderly construction of infrastructures caused by population growth. The present work emphasizes the preliminary study of the surface runoff of rainwater for a drainage system in Cidade da Matola, specifically in the Bunhiça neighborhood, with the aim of presenting criteria for designing an urban drainage system using the rational method. The procedures used to carry out this work range from bibliographic consultation of works, internet consultations, acquisition of precipitation data at the National Institute of Meteorology and data collection in the field reconciled in participatory observation and direct observation of the place under study where With these procedures it was possible to conclude that the critical period for the occurrence of floods is the summer, that is, months that go from October to March and that the use of the rational method for presenting the criterion for sizing the drainage system is the most adequate for the area under study because it is smaller than 2km 2 . The integration of drainage aims to improve the management of the surface runoff of rainwater so as not to compromise the lives of the resident population with the occurrence of floods, thus being able to bring about an improvement in environmental conditions, providing an excellent quality of life (TRADUÇÃO NOSSA)