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本文概述了水东潮汐通道的地貌、水文等特点,论证了潮汐通道的稳定性,讨论了口门外泥沙运动和输移方式。水东潮汐通道的落潮三角洲处于均衡状态。但是,以冲激沙坝方式的泥沙转移殊为重要,航道的淤积和偏移都与它的活动有关。不过口外泥沙向西的净输移量并不很大,每年约20×10~4m~3。因此在落潮三角洲上开挖航道,并配以适当的工程措施是可以成功的。
This paper summarizes the topography and hydrology of the Shidong tidal channel, demonstrates the stability of the tidal channel, and discusses the sediment transport and transport modes outside the port. The tidal channel of the East China Sea is in a state of equilibrium with the tidal current delta. However, the sediment transfer by means of impulse barrage is of special importance. The siltation and migration of waterways are all related to its activities. However, the net amount of sediment transported westward is not large, about 20 × 10 ~ 4m ~ 3 per year. Therefore, it is successful to excavate the waterway in the ebb delta with appropriate engineering measures.