基于水动力水质耦合模型的北江河道水质达标分析  

Analysis of Water Quality Compliance in the Beijiang River Based on the Coupling Model of Hydrodynamic and Water Quality

作　　者：王余靖 WANG Yu-jing(Guangdong Water Resources and Electric Power Survey Design and Research Institute Co.Ltd.,Guangzhou 510635,China)

机构地区：[1]广东省水利电力勘测设计研究院有限公司,广州510635

出　　处：《水利科技与经济》2025年第2期85-89,95,共6页Water Conservancy Science and Technology and Economy

摘　　要：为了解决水质达标边界条件单一难以全面反映河道水质的问题,研究提出基于水动力水质耦合模型的水质分析方法。以北江河道治理工程为例,通过对河道现状的了解,制定区域水质达标方案,建立水动力耦合模型,分析河道水质达标的影响因素及影响程度,涉及截流量、降雨量和上游来水量三方面,基于正交分析法确定最佳因素水平组合,进行参数校核,调整参数值,确定满足节约水资源要求的最佳因素水平组合。结果表明,在截流量6mm、上游来水量0.8m^(3)/s的合理边界条件下,降雨后5d河道水质达标。To solve the problem of single boundary conditions for water quality standards that are difficult to fully reflect river water quality,a water quality analysis method based on a hydrodynamic water quality coupling model is proposed.Taking the Beijiang river management project as an example,by understanding the current situation of the river,a regional water quality standard scheme is formulated,a hydrodynamic coupling model is established,and the influencing factors and degrees of water quality standards in the river are studied,involving interception,rainfall,and upstream inflow.Based on the orthogonal analysis method,the optimal factor level combination is determined,and parameter verification is carried out,adjusting parameter values to determine the optimal factor level combination that meets the requirements of water resource conservation.The results show that the reasonable boundary conditions are a cut-off flow of 6mm and an upstream inflow of 0.8m^(3)/s.It takes 5 days for the river water quality to meet the standard after rainfall.

关 键 词：河道 水质管理 耦合模型 正交分析 影响因素 

分 类 号：X824[环境科学与工程—环境工程]