Application of air bubble curtain technology in harbor basin dredging
In order to guide the practical application of sediment interception using a bubble curtain,we use a theoretical derivation to provide calculation formulas for the required aeration rate per unit width and a method for calculating the diameter of the bubble curtain's perforated pipe,apply these new calculation formulas and methods to the sediment interception operation for the harbor basin dredging of the comprehensive terminal project in the Hexi operation area of Zhangshu Port in Yichun Harbor,and summarize a construction process for the sediment interception with the bubble curtain.The results show that the bubble curtain has a good sediment interception effect,but the optimal aeration rate per unit width for sediment interception is lower than the theoretical value.Overall,the bubble curtain device has a simple structure,easy installation,good sediment interception effect,and does not hinder normal vessel passage.Combined with silt curtains to prevent the spread of suspended sediment,it works even better.
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