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 pre-dicted.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.

ZHANG Kuncheng;LI Qingjie;ZHANG Jing;SHI Hongyuan;YU Jing;GUO Xinchang;DU Yonggang

School of Marxism/Institute of Marine Development,Ocean University of China,Qingdao 266100,China;Guangxi Key Laboratory of Marine Environmental Science,Guangxi Academy of Sciences,Guangxi 530007,China;Yantai Marine Environment Monitoring Center Station,State Oceanic Administration,Yantai 264006,China;Qingdao Ocean Shipping Mariners College,Teaching and Research Department of Mathematics and Computer Science,Qingdao 266100,China;Civil Engineering College,Ludong University,Yantai 264025,China;College of Oceanic and Atmospheric Sciences/Institute of Marine Development,Ocean University of China,Qingdao 266100,China

中国海洋大学学报（自然科学英文版）

[1]ZHANG Kuncheng;LI Qingjie;ZHANG Jing;SHI Hongyuan;YU Jing;GUO Xinchang;DU Yonggang-.Simulation and Analysis of Back Siltation in a Navigation Channel Using MIKE 21)[J].中国海洋大学学报（自然科学英文版）,2022(04):893-902

Siltation,Lanshan,Rizhao,dredging

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