Abstract
The channel back-siltation problem has been restricting the development of channels, and its monitoring is limited by funds and natural conditions. Moreover, predicting the channel back-siltation situation in a timely and accurate manner is difficult. Hence, a numerical simulation of the back-siltation problem in the sea area near the channel is of great significance to the maintenance of a channel. In this study, the back siltation of a deep-water channel in the Lanshan Port area of the Port of Rizhao after dredging is predicted. This paper relies on the MIKE 21 software to establish the wave, tidal current, and sediment numerical models and uses measured data from two observation stations in the study area for verification. On this basis, taking one month as an example, the entire project channel was divided into five sections, and three observation points were set on each section. The results show that the area with offshore siltation is located in the northerly direction of the artificial anti-wave building. Siltation occurred on the northern seabed in the sea a little farther from the shore. Siltation occurred on the seabed surface far away from the shoreline, and with the increase in the distance from the shoreline, the amount of siltation in the south, center, and north became gradually closed, and the results can be used to guide actual engineering practices. This study will play a positive role in promoting the dredging project of Rizhao Lanshan Port.
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Acknowledgements
The study is supported by the Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences (No. GXKLHY21-04), the Special Funds for Fundamental Scientific Research Operation of Central Universities (No. 202113011), the Shandong Provincial Social Science Planning Research Youth Project (No. 21DSHJ2), NSFC-Shandong Joint Fund (No. U1706215), and the Tianjin Philosophy and Social Science Planning Project of China (No. TJKS20XSX-015).
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Zhang, K., Li, Q., Zhang, J. et al. Simulation and Analysis of Back Siltation in a Navigation Channel Using MIKE 21. J. Ocean Univ. China 21, 893–902 (2022). https://doi.org/10.1007/s11802-022-5052-9
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DOI: https://doi.org/10.1007/s11802-022-5052-9