广州大学城取水工程对附近河道演变的影响分析

Analysis of Influence of Intake Engineering on Riverbed Evolution of Nearby Rivers

该文在分析广州大学城附近河道水文、气象和泥沙特性的基础上,对工程附近河道历史演变和近期演变进行了分析。根据二维水(潮)流数学模型,分析工程对滩槽和河岸的变化、涨落潮流动力的变化、水动力轴线的变化、河道分流比和纳潮量的变化,提出了工程对河势稳定和河床演变的影响,为取水工程建设提供科学依据。

On the basis of analyzing the hydrological,meteorological and silt characteristics of the nearby rivers of Gunagzhou University,the article analyzes the historical evolution and the recent evolution of the rivers near the project.Based on the two-dimensional water(tide)flow mathematical model,the article analyzes the changes of the project on the foreshore and river bank,the motive power of flood tide and ebb tide,the water dynamic axis,the river dividing ratio and the tide receiving capacity,and puts forward the influence of the project on the river tending stabilization and the riverbed development to provide the scientific basis for the construction of the intake engineering.