Abstract
The sediment movement and deposition diffusion regularity of the Diaokou River are related to the safety and stability of the northern coast and coastal ports of the Yellow River Delta, and the deposition of sediment in the estuary will lead to the extension of the river and the increase of river resistance. As a result, the water level of the Yellow River estuary and the lower reaches of the Yellow River rises, which has a negative impact on the flood control safety of the lower reaches of the Yellow River. Therefore, it is of great significance to study the sediment deposition and diffusion law of the Diaokou River into the sea. Using the verified two-dimensional numerical model of marine sediment of estuary rivers, the sediment movement of Diaokou River into the sea is calculated, and the marine dynamic characteristics such as tidal current and tide in the sea area near the Diaokou River into the sea are analyzed. The spatial and temporal distribution of sediment concentration in sediment movement and the increase of sediment deposition thickness in sediment movement are consistent with the analysis results of measured data.
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