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首页> 外文期刊>Proceedings of the Institution of Civil Engineers. Municipal Engineer >Influence of low-Impact development in flood control for a design rainfall event
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Influence of low-Impact development in flood control for a design rainfall event

机译：低抗冲击发展对设计降雨事件防洪的影响

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Urbanisation modifies the natural hydrological cycle and aggravates floods. If the limits imposed by the natural environment are respected in the urban planning process, it is expected that the city resulting from this process will be able to coexist with floods, suffering minor damages. In this context, this work uses the concept of low-impact development (LID) to 'go back in time', with the aid of mathematical modelling tools, identifying an earlier moment of initial development of the city of Mesquite, in Brazil, to evaluate the flooding situation at that time and compare it with the current situation, seeking to understand how the worsening process of the urban floods evolved. Then, an alternative growth pattern is modelled from the past to the present, revising urban development guidelines to incorporate flood concerns and LID concepts. The main findings indicate that flood flows need space; the bottom of the valleys and the riverine areas should be preserved as open spaces to accommodate floods, and LID can help in preventing floods, but the excess of imperviousness is critical and very difficult to reverse.
机译：城市化改变了自然水文循环并加剧了洪水。如果在城市规划过程中尊重自然环境所施加的限制，则预计这一进程造成的城市将能够与洪水共存，遭受轻微损害。在这种情况下，这项工作借助数学建模工具，使用低影响开发（盖子）的概念来“及时回到”，确定在巴西的初步发展的初步发展时刻评估当时的洪水状况，并将其与目前的情况进行比较，寻求了解城市洪水的恶化过程如何发展。然后，替代成长模式是从过去建模的，修改城市发展指南，以纳入洪水问题和盖子概念。主要发现表明洪水流量需要空间;山谷和河流区域的底部应保存为开放空间以适应洪水，盖子可以帮助防止洪水，但过量的不利性是至关重要的，很难反转。

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