期刊论文详细信息
Water 卷:14
Hydraulic Planning in Insular Urban Territories: The Case of Madeira Island—São Vicente
Leonardo Gonçalves1  Sérgio Lousada1  Alper Atmaca2 
[1] Department of Civil Engineering and Geology (DECG), Faculty of Exact Sciences and Engineering (FCEE), University of Madeira (UMa), 9000-082 Funchal, Portugal;
[2] Faculty of Engineering, Dumlupinar University, Kütahya 43820, Turkey;
关键词: floods;    hydraulics;    hydrology;    roughness coefficient;    territorial management;    urban planning;   
DOI  :  10.3390/w14010112
来源: DOAJ
【 摘 要 】

This study aims to examine the flood propensity of the main watercourse of São Vicente drainage basin and, if relevant, to propose two methodologies to alleviate the impacts, i.e., detention basin sizing and riverbed roughness coefficient adjustment. Geomorphological data were obtained from the watershed characterization process and used through the SIG ArcGIS software for the flood propensity assessment and then for the calculation of the expected peak flow rate for a return period of 100 years through the Gumbel Distribution. Subsequently, the drainage capacity of the river mouth was verified using the Manning-Strickler equation, in order to establish whether the river mouth of the watershed has the capacity to drain the entire volume of rainwater in a severe flood event. In summary, it was possible to conclude that São Vicente’s watershed river mouth is not able to completely drain the rain flow for the established return period. Thus, its drainage capacity was guaranteed by modifying the walls and streambed roughness coefficient and by sizing the detention basin using the Dutch and the Simplified Triangular Hydrograph methods.

【 授权许可】

Unknown   

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