基于EFDC模型的感潮河网地区闸门调度研究  

Gate Dispatching in Tidal River Network Areas Based on EFDC Model

作　　者：张现国 王慧鹏 黄绵松 郑蕾[2] 刘晓芳 ZHANG Xianguo;WANG Huipeng;HUANG Miansong;ZHENG Lei;LIU Xiaofang(Capital Eco-Pro Group Co.,Ltd,Beijing 100044,China;College of Water Sciences,Beijing Normal University,Beijing 100875,China;Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China)

机构地区：[1]北京首创生态环保集团股份有限公司,北京100044 [2]北京师范大学水科学研究院,北京100875 [3]中国科学院地理科学与资源研究所,北京100101

出　　处：《人民珠江》2022年第7期96-102,共7页Pearl River

基　　金：国家自然科学基金项目(41601006);北京市科技计划(Z181100005518012)。

摘　　要：水动力调控是治理黑臭水体、建立良好水环境和水生态的重要措施。对于感潮河网地区,做好闸门泵站调控的水动力调控达到活水循环是水环境问题治理的关键。研究了福州感潮河网地区水系水质维持的水动力调度模拟。基于EFDC构建福州复杂河网水系水动力水质模型,模拟研究区内不同水质目标及引水条件下的闸泵调度对河道水质变化影响。根据模型模拟结果得出结论:采用潮差引水可以降低运维成本,但是无法使水质恢复维持在优秀水平;采用泵站引水可以快速恢复河道水质,使用不同位置泵站对河道内水质产生影响不同,应根据实际的运维目标进行调整;同时开启水系南侧闸门及泵站易导致河网中心区域水体流向反复,引发水体震荡,不利于河道水质恢复维系,在运维调度中应避免同时开启。研究结论可以为感潮河网地区水质维系和水动力调控实施提供方法借鉴。Hydrodynamic regulation is an important measure to control black and malodorous water bodies and create a good water environment and water ecology.For tidal river network areas,the key to the treatment of water environment problems is to control the hydrodynamics of gates and pumping stations to achieve running water circulation.This paper simulates the hydrodynamic dispatching of the water quality maintenance of the water system in the tidal river network area of Fuzhou.A hydrodynamic water quality model based on the Environmental Fluid Dynamics Code(EFDC)is constructed for the complex river network of Fuzhou to simulate the influence of gate and pump dispatching under different water quality goals and diversion conditions in the study area on changes in water quality of river channels.According to the simulations of the model,it is concluded that the use of tidal range for diversion can reduce the operation and maintenance costs but cannot maintain the water quality at an excellent level.The use of pumping stations for diversion can rapidly restore the water quality of river channels,but pumping stations in different locations can lead to different effects on the water quality,and thus adjustment is required according to the actual operation and maintenance goals.The simultaneous opening of the gates on the south side of the water system and the pumping stations can easily cause reciprocating flow of water in the central area of the river network and result in water body turbulence,which is not conducive to the restoration and maintenance of water quality.Therefore,they should not be opened at the same time during operation.The conclusions of this paper can provide references for the implementation of water quality maintenance and hydrodynamic control in tidal river network areas.

关 键 词：感潮河网 EFDC 黑臭水体治理 水动力水质模型 

分 类 号：X522[环境科学与工程—环境工程]