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甘溪港浅滩位于湖南省益阳县沙兴镇,是资水和沅水尾闾的汇合处(见图1)。由于受资水、沅水的双向水流影响,河道演变复杂,浅滩变化多端。为了维持省内干线航道的通航,每年必须浚挖浅滩航槽,且挖泥量逐年增加,自1977年的15,193立方米逐步增加到1981年36000立方米。因此,甘溪港航道必须结合河道的整治进行浚挖维护才能有效。本文根据30多年来浅滩河床的演变和
Gansu Port Shantan is located in Shaxing Town, Yiyang County, Hunan Province. It is the confluence of Zishui and Yuanshui Tail (see Figure 1). Due to the water resources, Yuanshui two-way flow of water, river evolution is complicated, shoals vary. In order to maintain the navigation of the trunk channel in the province, the shoal slot must be dredged every year and the volume of dredging increased year by year from 15,193 cubic meters in 1977 to 36,000 cubic meters in 1981. Therefore, Gansu Port Waterway must be combined with the rectification of the river dredging maintenance can be effective. Based on the evolution of the Shoal River bed for more than 30 years