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针对京杭运河杭州城区段水体悬浮物含量高、透明度低、景观效应差的问题,通过平流沉淀池模型模拟运河主要断面水体中悬浮物的沉淀性能,结果表明,顾家桥、武林门、勤丰桥、拱宸桥断面水体的沉淀性能较好,而义桥断面水体的沉淀性能较差。另外,船只通航对水体底泥扰动强烈,大幅度增加了水体的浊度。为此,结合京杭运河的通航状况与规划,拟通过运河航运功能调整和管理,来提高白天时段运河水体的透明度。
Aiming at the problem of suspended sediment content, low transparency and poor landscape effect in the Hangzhou urban section of Beijing-Hangzhou Grand Canal, the sedimentation performance of suspended sediment in the main section of the canal was simulated by the advection sedimentation tank model. The results show that, Gujiaqiao, Wulinmen, Qinfengqiao The sedimentation performance of the water body in Gongchenqiao section is better, while the sedimentation performance of Yiqiao section water body is worse. In addition, the navigation of the vessel has a strong disturbance to the sediment of the water body, which greatly increases the turbidity of the water body. To this end, combined with the navigation and planning of the Grand Canal, it is proposed to improve the transparency of the canal water during the day by adjusting and managing the functions of the canal.