Abstract: According to the data from the hydraulic model of E Gongyan bridge,analysis of the navigation clearance,effects on water condition of downbound & upbound and channel dimensions,we draw the conclusions that the building of the bridge has effects on sailing and that the location and pattem of E Gongyan bridge are reasonable

Key words: navigation clearance, line of navigation, velocity of main stream flow

摘要： 根据鹅公岩大桥桥区河段水工模型试验资料，通过对大桥修建前后桥位处的通航净空尺度、整个桥区河段 上、下行水流条件及航道尺度的影响分析，表明鹅公岩大桥修建后对通航影响甚小，桥位及桥型方案合理可行

关键词: 通航净空, 航线, 主流速度