• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Water >Runoff Effect Evaluation of LID through SWMM in Typical Mountainous, Low-Lying Urban Areas: A Case Study in China
【24h】

Runoff Effect Evaluation of LID through SWMM in Typical Mountainous, Low-Lying Urban Areas: A Case Study in China

机译：典型山地低洼地区通过SWMM进行LID径流效应评价：以中国为例

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Urban flooding occurs frequently in many regions of China. To reduce the losses caused by urban flooding, sponge city (SPC) and low-impact development (LID) have been carried out in many Chinese cities. However, urban flooding is influenced by various factors, such as climate, land cover characteristics and nearby river networks, so it is necessary to evaluate the effectiveness of LID measures. In this study, the Storm Water Management Model (SWMM) was adopted to simulate historical urban storm processes in the mountainous Fragrance Hills region of Beijing, China. Subsequently, numerical simulations were performed to evaluate how various LID measures (concave greenbelt, permeable pavement, bio-retention, vegetative swales, and comprehensive measures) influenced urban runoff reduction. The results showed that the LID measures are effective in controlling the surface runoff of the storm events with return periods shorter than five years, in particular, for one-year events. Furthermore, the effectiveness on traffic congestion mitigation of several LID measures (concave greenbelt, vegetative swales, and comprehensive measures) was evaluated. However, the effective return periods of storm events are shorter than two years if the effectiveness on traffic congestion relief is considered. In all evaluated aspects, comprehensive measures and concave greenbelts are the most effective, and vegetative swale is the least effective. This indicated that LID measures are less effective for removing ponding from most storm events in a mountainous, low-lying and backward pipeline infrastructure region with pressures from interval flooding and urban waterlogging. The engineering measures including water conservancy projects and pipeline infrastructure construction combined with the non-engineering measures were suggested to effectively control severe urban storms.
机译：在中国许多地区，城市洪水泛滥。为了减少城市洪水造成的损失，许多中国城市都进行了海绵城市（SPC）和低影响开发（LID）。但是，城市洪水受气候，土地覆盖特征和附近河网等多种因素的影响，因此有必要评估LID措施的有效性。在这项研究中，采用雨水管理模型（SWMM）来模拟中国北京多山的香山地区的历史城市暴雨过程。随后，进行了数值模拟，以评估各种LID措施（凹地绿化带，可渗透路面，生物滞留，植物生长和综合措施）如何影响城市径流的减少。结果表明，LID措施可有效控制风暴事件的地表径流，特别是对于一年期事件，其返回期短于五年。此外，评估了几种LID措施（凹地绿化带，植物沼泽和综合措施）对缓解交通拥堵的有效性。但是，如果考虑缓解交通拥堵的有效性，风暴事件的有效回报期将少于两年。在所有评估的方面，综合措施和凹陷绿化带最为有效，而植物绿化效果最差。这表明，在间歇性洪水和城市涝灾的压力下，LID措施在消除山区，低洼和落后管道基础设施地区大多数风暴事件中的积水方面效果不佳。建议将水利工程和管道基础设施建设等工程措施与非工程措施相结合，以有效控制严重的城市暴风雨。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号