绞吸式清淤与气力泵式清淤效果比较研究OA

Taking the pneumatic pump dredging and cutter suction dredging construction in the dredging project of Zhushan Lake in the Taihu Lake as the object,the influence of two ship types in the dredging project on the suspended solids,total phosphorus,total nitrogen,ammonia nitrogen and other indicators of the surrounding water body was analyzed,and the change trend of residual water pollutants and water content mass concentration in the dredging of cutter suction and pneumatic pump dredgers was compared and analyzed,and the influence of two types of dredging ships on the bedding structure of the sediment interface layer after dredging was studied.The results showed that the disturbance distance and intensity of the pneumatic pump dredging ship were smaller than those of the cutter suction dredging ship.The solid content of the sludge in the pneumatic pump dredging was higher,the residual water was smaller,and the impact on the interface layer structure of the sediment was smaller.