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选取连云港南部近岸带南北不同岸滩 4个典型断面的样品点进行主成分分析 ,得出研究区控制泥沙交换和冲淤变化的主要动力因素为潮流作用和潮流波浪混合作用。据此 ,尝试建立冲淤变化的协方差数学模型 ,经过对计算结果显著性分析和实证检验得出研究区域的冲淤趋势为“整体冲淤平衡 ,局部略有冲刷” ,从北到南 ,依次出现淤积平衡、冲淤平衡、冲刷平衡三种较为稳定的自然冲淤环境。
Principal component analysis was conducted on the sample points of four typical sections along the southern and southern coastal banks of Lianyungang. The main dynamic factors controlling the change of sediment exchange and scour and silting in the study area are tidal current and tidal wave mixing. Based on this, we try to establish the covariance mathematical model of erosion and deposition variation. After analyzing the significant results of the calculation results and empirical tests, we can conclude that the erosion and deposition trend of the study area is “the overall erosion and sedimentation balance with a slight local erosion”, from north to south, Followed by silt balance, scouring and silting balance, erosion balance of three more stable natural scouring and silting environment.