跨海输电线工程对湛江港海域水环境的影响  

Research on Impact of Cross-sea Power Transmission Line Project on Water Environment of Sea Area in Zhanjiang Port

作　　者：蒋红[1] 逄勇 罗缙[1] 王一舒[1] 王健健[1] 

机构地区：[1]河海大学环境学院,江苏南京210098 [2]河海大学浅水湖泊综合治理与资源开发教育部重点实验市,江苏南京210098

出　　处：《水电能源科学》2015年第3期34-37,134,共5页Water Resources and Power

基　　金：国家自然科学基金项目(51179053);国家水体污染控制与治理科技重大专项(2012ZX07506-006-05,2012ZX07506-007-01)

摘　　要：为探明湛江港跨海输电工程对水环境的影响,建立湛江港近海海域二维非稳态水量水质模型,基于水文、水质实测数据率定模型参数,并运用所建模型动态模拟研究区的流场和浓度场,定量分析了南三岛至特呈岛跨海电线工程建设后和塔基围堰施工期对周围水环境的影响。研究结果表明,工程建设后塔基对周围50～100m水体有分流作用,局部流速减小10%～20%;围堰施工期悬浮物浓度影响范围约为50～100m,中心最高浓度达100mg/L以上。研究结果可为类似工程实施提供指导和参考。A two-dimensional unsteady hydrodynamic and water quality model for coastal area of Zhanjiang Port was established to analyze the influence of cross-sea power transmission line project on water environment.And then the hydrodynamic and water quality data were used to calibrate and verify the model.At the same time the flow field and concentration field of the research area were simulated dynamically by using the model.Finally,the impacts of construction of the project of cross-sea transmission line from Nansan island to the Techeng island and the construction period of cofferdam on the surrounding water environment were analyzed quantitatively.The results show that after the construction of the tower foundations,about 50 to 100meters flow was divided and local velocity was decreased about 10 percent to 20 percent for the tower foundations;the influence of suspended matter concentration ranges about 50 meters to 100 meters,the highest concentration of center is above 100mg/L.Therefore,the research provides reference and guidance for construction of similar project.

关 键 词：湛江港 塔基施工 数值模拟 水环境 悬浮物 

分 类 号：X55[环境科学与工程—环境工程]