摘要
为实现渤海新区的污染治理及规划建设,文中基于水动力与水文计算方法,构建了降雨-径流模型。子区域内以单元网格为计算单位,采用二维水动力方法模拟径流过程;子区域间根据水量平衡原理及河道间汇流关系,计算模拟蓄水量。采用入海径流水量、水深及流动分布趋势对模型进行了定量、定性验证,模拟结果与实测资料基本一致。由降水过程中不同时刻的水深分布与蓄水量可知,研究区域内西南部整体积水深度低于其他地区,整体上规划下蓄水量小于现状。研究表明,降雨-径流模型较为可靠,可为渤海新区海岸带生态环境评价提供依据。
In order to realize the pollution control and planning construction of Bohai New Area,we constructed a rainfall-runoff model based on hydrodynamic and hydrological calculation methods.In the sub-area,the unit grid was used as the calculation unit,and the two-dimensional hydrodynamic method was used to simulate the runoff process.For sub-areas the simulated water storages were calculated according to the principle of water balance and the relationship between the rivers.The model was quantitatively and qualitatively verified by the flow of water into the sea,water depth and flow distribution.The simulation results were basically consistent with the measured data.It can be seen from the water depth distribution and water storage capacity at different times during the precipitation process that the depth of the whole volume in the southwestern part of the study area is lower than that of other areas,and the overall planned water storage capacity is smaller than the current situation.The research shows that the rainfall-runoff model is more reliable and can provide a basis for the ecological environment assessment of the coastal zone of Bohai New Area.
作者
李大鸣
吴慧慧
张弘强
罗珊
刘俊滨
田海军
曹华音
LI Daming;WU Huihui;ZHANG Hongqiang;LUO Shan;LIU Junbin;TIAN Haijun;CAOHuayin(State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072;Management Office of Nanyun River in Hebei Province,Cangzhou 061000,China;Tangshan Caofeidian Management Committee,Tangshan 063000,China)
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2020年第2期122-129,共8页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金创新研究群体科学基金项目-重大水利工程安全性的基础理论研究(51321065)
河北省水利科研与推广计划项目(编号2017-44)资助.
关键词
降雨-径流
数学模型
水动力方法
水文方法
水深分布
蓄水量
rainfall-runoff
mathematical model
hydrodynamic method
hydrological method
water depth distribution
water storage
作者简介
李大鸣(1957-),男,汉族,河北枣强人,博士,教授,主要从事水力学及河流动力学、海岸工程及数值计算等方面的研究。E-mail:lidaming@tju.edu.cn;通讯作者:张弘强(1990-),男,汉族,湖南邵阳人,博士研究生,主要从事水力学及河流动力学、水动力数值计算相关研究。E-mail:zhq831807@163.com
