黄若琳,王锣洋,潘骁骏,张雯轩,李丹彤,王品,胡潭高

• 1:杭州师范大学遥感与地球科学研究院
• 2:浙江省城市湿地与区域变化研究重点实验室
• 3:浙江省测绘科学技术研究院

摘要(Abstract)：

【目的】低影响开发(Low Impact Development, LID)作为一种新型雨洪管理方法，包括绿色屋顶、雨水花园、透水铺装等典型措施，对降雨径流有明显的控制作用，能够有效降低城市内涝隐患。【方法】以浙江省海宁市为例，基于暴雨洪水管理模型(Storm Water Management Model, SWMM),模拟不同重现期(1 a、5 a、10 a、30 a、50 a)、不同布设比例(20%,50%,100%)LID组合措施情景下的城市内涝过程，分析海宁市溢流分布情况、程度及其原因，探讨溢流区域LID组合措施对节点溢流、地表径流以及管网负载的影响。【结果】结果表明：在不同设计降雨情景下联合路、海昌路、水月亭西路、西山路以及隆兴港等地管网溢流较为严重；LID组合措施布设比例相同时，随着重现期的增加，LID组合措施对地表径流和节点溢流的削弱作用呈下降趋势，LID措施的作用趋于饱和状态；重现期为30 a和50 a、布设比例为50%时，地表径流的削减为45.92%和44.09%。【结论】LID组合措施对雨洪的控制作用有限，降雨强度对节点溢流、地表径流起主导作用。海宁市部分老旧小区管道年份较长，管径较短，管网溢流情况严峻，建议重点关注区域管网改造和LID措施空间布局。研究成果对于海绵城市建设规划、缓解城市内涝灾害具有一定参考价值。

关键词(KeyWords)： SWMM;LID;节点溢流;地表径流;管网负荷;降水;海绵城市;洪水

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41807506);; 浙江省基础公益研究计划项目(LY19D010004);; 2023年浙江省大学生科技创新活动计划(新苗人才计划)项目(2023R445030)

作者(Author): 黄若琳,王锣洋,潘骁骏,张雯轩,李丹彤,王品,胡潭高

DOI: 10.13928/j.cnki.wrahe.2024.04.003

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