【摘要】 以东大港潮流水道4号站位的水、沙实测资料为例,利用悬沙通量机制分解法、功率谱分析法,对东大港潮流水道悬沙输移的动力机制进行分析探讨.结果表明,悬沙净输移以平流作用占优,“潮泵效应”项在悬沙输移中也相当重要;潮流流速是水体含沙量变化及悬沙输移的主要动力因素.更多还原

【Abstract】 Based on water and sediment data for station No.4 of Dongdagang tidal channel,a discussion was made on the mechanism of suspended sediment transport in the channel by use of the mechanism decomposition method and spectral analysis method.The result shows that the advection is the main factor to affect the suspended sediment transport,and the tidal pumping effect also plays an important role.Meanwhile,the current velocity is an important dynamic factor on variation of sediment concentration in water body and suspended sediment transport.更多还原