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首页> 外文会议>International conference on urban drainage >Catchment-wide Efficiency Analysis of Distributed Stormwater Management Practices: the Case Study of Baerum (Norway)
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Catchment-wide Efficiency Analysis of Distributed Stormwater Management Practices: the Case Study of Baerum (Norway)

机译：分布式雨水管理实践的集水区效率分析：Baerum（挪威）的案例研究

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摘要

The urbanization process and the hydraulic insufficiency of drainage systems are two of the most common causes of urban flooding. In some technical regulations distributed stormwater management practices (DSMPs) are regarded as a solution for urban flooding problems. They can prevent the formation of runoff, dispose of it locally, or dampen its peak before it reaches the drainage system. Due to their diffuse localization and the wide number of available solutions the evaluation of their efficiency in terms of flood reduction is very difficult.rnThe paper proposes a methodology that allows evaluating the efficiency of complex DSMP packages through the application of detailed rainfall-runoff modelling and sensitivity analyses.rnAs DSMPs are distributed catchment-wide, they are analysed as "hydrological improvements" at a sub-catchment scale. All the most widely used mathematical models (SWMM, MOUSE, HydroWorks, etc.) allow for detailed simulation of hydrological processes such as infiltration, surface detention and evaporation. In the presented methodology, variation of hydrological model parameters is used to simulate the presence of different DSMPs.rnAnalysing rainfall events with different frequency, duration and time pattern, it is possible to evaluate the sensitivity of different hydrological parameters and to estimate the flood reduction efficiency and operational stability of DSMPs. The developed procedure allows to screen and pre-select DSMP alternatives avoiding simulation of numerous alternatives. The procedure was applied to the Solvik catchment in Baerum (Norway) using the EPA SWMM model, both, for the rainfall-runoff and for the hydrodynamic analyses in the drainage system.
机译：城市化进程和排水系统的水力不足是造成城市洪水的两个最常见原因。在某些技术法规中，分布式雨水管理实践（DSMP）被视为解决城市洪水问题的解决方案。它们可以防止径流的形成，将其局部处理或在其到达排水系统之前减弱其峰值。由于它们的分散本地化和可用解决方案的广泛性，因此在减少洪水方面对其效率进行评估非常困难。rn本文提出了一种方法，该方法可以通过应用详细的降雨径流模型和模型来评估复杂DSMP软件包的效率。敏感性分析。由于DSMP分布在整个集水区，因此将其作为子集水区规模的“水文改进”进行分析。所有使用最广泛的数学模型（SWMM，MOUSE，HydroWorks等）都可以详细模拟水文过程，例如入渗，地表滞留和蒸发。在本文提出的方法中，利用水文模型参数的变化来模拟不同DSMP的存在。rn分析不同频率，持续时间和时间模式的降雨事件，可以评估不同水文参数的敏感性并估算防洪效率和DSMP的操作稳定性。所开发的过程允许筛选和预选DSMP替代方案，从而避免模拟多种替代方案。使用EPA SWMM模型将该程序应用于Baerum（挪威）的Solvik流域，用于降雨径流和排水系统中的水动力分析。

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  • 来源
  • 会议地点 Portland OR(US)
  • 作者

    Gabriele Freni; Wolfgang Schilling; Sveinung Saegrov; Jadranka Milina; Axel Konig;

  • 作者单位

    Department of Hydraulic Engineering and Environmental Applications, Viale delle Scienze, 90100 Palermo, ITALY (EU), PH +39-091-6657730, freni@.idra.unipa.it;

    Department of Hydraulic and Environmental Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway, wolfgang.schilling@bygg.ntnu.no;

    SINTEF Civil and Environmental Engineering, Water and Wastewater, N-7465 Trondheim, Norway, Sveinung. Sagrov@chem.sintef.no;

    SINTEF Civil and Environmental Engineering, Water and Wastewater, N-7465 Trondheim, Norway, Jadranka.Milina@chem.sintef.no;

    SINTEF Civil and Environmental Engineering, Water and Wastewater, N-7465 Trondheim, Norway, Axel.Konig@chem.sintef.no;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 排水方法;陆地水文学、水文地理学（水象学）;
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