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首页> 外文期刊>Journal of Hydraulic Engineering >Hydraulic Efficiency of Grate and Curb Inlets for Urban Storm Drainage
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Hydraulic Efficiency of Grate and Curb Inlets for Urban Storm Drainage

机译：炉排和路缘入口对城市暴雨排水的水力效率

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摘要

A curb inlet and two combination inlets (with a grate and curb opening) used for storm-water drainage were tested under varying road conditions, and equations were developed for their application. The need for this study arose from a general uncertainty in matching the inlets tested to previously published methods. This uncertainty relates to sizing inlets and in determining the flow captured. A one-third Froude-scale model of a two-lane road section was designed and built for testing. A total of 120 tests were performed for longitudinal street slopes from 0.5 to 4%, cross slopes from 1 to 2%, gutter prototype flow depths from 0.1 to 0.15 m, and prototype inlet lengths from 1 to 4.6 m. Collected test data on inlet efficiency were compared to previously published methods for the inlets and were found to deviate by as much as 45% and an average of 13% at typical design depths of 0.1-0.15 m. Existing methods for the curb inlet were modified, and empirical design equations were developed for the combination inlets. Dimensionless parameter groups developed for empirical equations are based largely upon flow characteristics and may be applicable to other inlets. New methods were found to deviate by as much as 19% and by an average of 5% from the observed test data for typical design depths of 0.1-0.15 m.
机译：在不同的道路条件下，测试了用于雨水排放的路缘进气口和两个组合进气口（带有格栅和路缘开口），并开发了用于其应用的方程式。进行这项研究的必要性是由于将测试的进样口与以前发表的方法相匹配的普遍不确定性。这种不确定性与入口的大小和确定捕获的流量有关。设计并构建了两车道路段的三分之一Froude比例模型以进行测试。对于纵向街道坡度从0.5％到4％，交叉坡度从1％到2％，装订线原型流深度从0.1到0.15 m以及原型入口长度从1到4.6 m进行了总共120次测试。将收集到的入口效率测试数据与先前公布的入口方法进行了比较，发现在典型设计深度为0.1-0.15 m时，其偏差高达45％，平均偏差为13％。修改了路缘进气口的现有方法，并为组合进气口建立了经验设计方程。为经验方程式开发的无量纲参数组主要基于流动特性，并且可能适用于其他进口。对于0.1-0.15 m的典型设计深度，发现新方法与观察到的测试数据相差多达19％，平均相差5％。

著录项

  • 来源
    《Journal of Hydraulic Engineering》 |2012年第10期|878-884|共7页
  • 作者

    Brendan C. Comport; Christopher I. Thornton;

  • 作者单位

    Dept. of Civil and Environmental Engi-neering, Engineering Research Center, Colorado State Univ., Fort Collins, CO 80523;

    Dept. of Civil and Environmental Engineering and Director, Engineering Research Center, Colorado State Univ., Fort Collins, CO 80523;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    inlets; drainage; hydraulic structures.;

    机译：进口;引流;水工结构。;

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