大型耙吸式挖泥船在浅水区疏浚工艺的应用

针对大型耙吸式挖泥船大面积浅水区施工的问题,基于船舶的施工特性及项目工况条件,探讨在水深不满足船舶设计最小吃水的环境中,利用抽舱旁通与打开前泥门装舱的方法结合疏浚集成控制系统形成的浅水区疏浚工艺进行疏浚作业的可行性。依托非洲东部某港池疏浚工程项目实践,说明浅水区疏浚工艺可以优化船舶吃水,提高大型耙吸式挖泥船大面积浅水条件下的疏浚能力。

Dredging method of large trailing suction hopper dredger in shallow water

Dredging in shallow water area has been a challenge for large trailing suction hopper dredger(TSHD).Based on project conditions,this article explores the feasibility of dredging operation in shallow water where the water depth does not meet the designed minimum draught of the ship by pumping,bypassing,and opening the front mud door for loading in combination with a dredging integrated control system.Based on the case study of a dredging project in a port basin in eastern Africa,it is proved that this new dredging method can optimize the draught and improve dredging ability in the shallow water of large TSHD.