宜兴新城区水系连通方案研究  

Study on the Water System Connection Scheme of Yixing New Urban Area

作　　者：封琼 毕忠飞 汪惠 周文琦 刘俊[1] FENG Qiong;BI Zhongfei;WANG Hui;ZHOU Wenqi;LIU Jun(College of Hydrology and Water Resources,Hohai University,Nanjing 210024,Jiangsu,China;Deqing Water Resources and Hydropower Center,Deqing 313200,Zhejiang,China)

机构地区：[1]河海大学水文水资源学院,江苏南京210024 [2]德清县水利水电工程质量安全中心,浙江德清313200

出　　处：《水力发电》2022年第5期15-21,32,共8页Water Power

基　　金：国家自然科学基金资助项目(41471015)。

摘　　要：为了探究水系连通对由城镇化引起的水问题的改善效果,研究以宜兴新城区为例,基于MIKE11计算模拟水系连通方案对20年一遇降雨条件下研究区域的防洪排涝与枯水期水环境的影响。结果表明,减少断头浜、连通形成“日”字形水网结构可以有效增大水系连通度,水系连通度越大对防洪排涝、水环境的改善效果越好。其中,方案4对研究区的水问题改善效果最佳,46.7%的河段20年一遇排涝水位明显下降,平均污染物浓度削减率达1.57%。To explore the improvement effect of water system connection on water problems caused by urbanization,Yixing New Urban District is taken as an example,and the influence of water system connection scheme on flood control and drainage and dry water environment in the studied area under 20-year rainfall is studied based on MIKE 11.The results show that reducing the dead-end river and forming cross water network structure can effectively increase the water network connectivity,and the greater the water system connectivity,the better the improvement effect on flood control and drainage and water environment.The Scheme IV has the best improvement effect on water problems in the study area,in which,the drainage water level of 46.7%of river reaches decreased under 20-year rainfall,and the average pollutant concentration reduction rate reached 1.57%.

关 键 词：水系连通 连通方案 MIKE模型 水文水质 宜兴新城区 

分 类 号：TV121[水利工程—水文学及水资源] X522[环境科学与工程—环境工程]