Taking Tongnan Dongsheng Bridge as an example to analysis and discuss the influence of navi gation safety.The results show that:before bridge construction,bridge navigation safety must be analyzed and demonstrated according to the grade of cross-river channel.Navigation safety is affected by multiple factors,and it is necessary to comprehensively consider the influence of bridge construction on river bed erosion and sedimentation,channel maintenance in bridge area,navigational AIDS,traffic organization,navigation order,and ship collision risk in water area.
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