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为了改善航道条件,往往需通过航道整治工程来稳定心滩。此文建立了基于非结构三角形网格的平面二维水流泥沙数学模型,并与水槽模型实测值进行了率定验证。在此基础上,运用建立的数学模型对不同流量级下的两种不同类型的心滩守护工程进行了模拟研究。研究结果表明,软体排护滩带工程和鱼骨坝工程均可实现对心滩头部的守护和提高两侧航道的水深,但它们所引起的河床和建筑物的局部冲淤特性上存在差异。
In order to improve waterway conditions, often through the channel regulation project to stabilize the heart and mind. In this paper, a planar two-dimensional mathematical model of flow and sediment based on a non-structured triangular grid is established and verified with the measured values of a sink model. On this basis, the mathematical model of the two different types of heart beach guard works under different flow levels is simulated by the established mathematical model. The results show that both the soft beach barrage and the fishbone dam project can achieve the guardianship of the beachhead and improve the water depth of the waterways on both sides, but they cause differences in the local scouring and silting characteristics of the riverbed and the buildings.