摘要
按照抵御20 a一遇洪水的防洪标准设计村台改造方案,基于黄河下游不同重现期洪水的水沙数据、土地利用类型数据以及地形数据,采用Delft3D软件建立二维水沙数学模型,分别对村台现状方案和村台改造方案下黄河下游花园口—艾山河段滩区的洪水演进进行模拟计算。结果表明:2种方案下,随着洪水量级增大,滩区和非居民地淹没面积都逐渐增大;与村台现状方案相比,村台改造方案下各重现期洪水的滩区和居民地淹没面积减小,非居民地淹没面积略微增大,滩区和非居民地淹没水深逐渐增大,而居民地淹没水深减小的面积占比都在95%以上,说明村台改造能够有效降低研究区域内居民地的淹没面积和淹没水深,起到保护居民地的作用。
This paper designed the village platform reconstruction plan according to the flood control standard of resisting the once-in-twenty-year flood.Based on the water and sediment data,land use type data and terrain data of floods of different return periods in the lower Yellow River,Delft3D software was used to establish a two-dimensional mathematical model of water and sediment,and the flood evolution of the Huayuankou-Aishan section in the lower Yellow River under the current plan of the village platform and the reconstruction plan of the village platform were simulated and calculated respectively.The results show that under the two schemes,with the increase of flood magnitude,the submerged area of floodplain and non-residential land is gradually increased.Compared with the current village platform plan,under the village platform reconstruction plan,the submerged area of floodplain and residential land is reduced,and the submerged area of non-residential land slightly increases,but the submerged water depth of floodplain and non-residential land is gradually increased,and the proportion of the area in which the submerged water depth of the residential areas is reduced is more than 95%.The village platform reconstruction plan can reduce the submerged area and submerged water depth of the residential area in the study area,and play a role in protecting the residential area.
作者
钟寰
程舒鹏
李溪智
刘一鸣
李振山
赵志杰
薛安
ZHONG Huan;CHENG Shupeng;LI Xizhi;LIU Yiming;LI Zhenshan;ZHAO Zhijie;XUE An(Key Laboratory of Water and Sediment Sciences of the Ministry of Education,College of Environmental Science and Engineering,Beijing University,Beijing 100871,China)
出处
《人民黄河》
CAS
北大核心
2022年第8期62-68,共7页
Yellow River
基金
国家重点研发计划项目(2016YFC0402505)。
关键词
村台
洪水演进
Delft3D
滩区
黄河下游
village platform
flood evolution
Delft3D
floodplain
Lower Yellow River
