CAJ | 학술논문

挖泥船疏浚施工引起的悬浮物对周围水域环境具有危害。选取链斗式挖泥船为研究对象，开展疏浚引起的悬浮物扩散规律研究。开展现场观测，得到了挖泥船正常作业时在流向和流速接近稳定的潮流作用下悬浮物扩散情况。基于泥沙对流扩散方程，利用现场观测数据，得到了该型挖泥船正常疏浚作业时引起的悬浮物扩散水深平均表达式，可方便、快捷地进行悬浮物扩散范围及其浓度的估算。在此基础上，对该型链斗式挖泥船在天津港施工可能引起的悬浮物扩散范围进行讨论，得到了悬浮物扩散的规律。
알니선소준시공인기적현부물대주위수역배경구유위해。선취련두식알니선위연구대상，개전소준인기적현부물확산규률연구。개전현장관측，득도료알니선정상작업시재류향화류속접근은정적조류작용하현부물확산정황。기우니사대류확산방정，이용현장관측수거，득도료해형알니선정상소준작업시인기적현부물확산수심평균표체식，가방편、쾌첩지진행현부물확산범위급기농도적고산。재차기출상，대해형련두식알니선재천진항시공가능인기적현부물확산범위진행토론，득도료현부물확산적규률。
It’s well-known that the environmental impact of suspended solids diffusion is induced by dredging.The proposed study is focused on turbidity plume induced by buck-et dredger.The field observation is carried out to investigate suspended solids diffusion under tidal current action with nearly stabilized velocity and direction.Based on the ad-vection-diffusion equations and field observation dates,the theoretical formula are con-venient and efficient to describe the suspended solids diffusion induced by bucket dred-ger.The turbidity plume is induced by bucket dredger and the characteristics of suspen-ded solids diffusion in Tianj in Port is discussed.