Abstract: The?feasibility?study?is?carried?out?on?the?navigation?of?two?temporary?transshipment?terminals?called?Ershiyan?and?Xintanba,?which?are?used?at?the?upstream?of?Xiangjiaba?Hydropower?Station?in?the?closure?construction?period.?Two-dimensional?mathematical?model?of?water?flow?is?used?to?analyze?and?compare?the?changes?of?water?condition?before?and?after?the?construction?of?transshipment?terminal.?The?result?shows?that?the?engineering?construction?has?faint?influence?on?navigation?condition?and?the?project?is?feasible.

Key words: planar 2-D mathematical model , wharf , navigation , flow condition

摘要： 对向家坝水电站施工截流期上游二狮岩和新滩坝两个临时转运码头进行通航可行性论证,建立了二维水流 数学模型,分析比较了码头工程建设前后港区水域条件变化情况。计算结果表明,工程建设对航道通航影响微弱, 工程可行。

关键词: 二维数学模型, 码头, 通航, 水域条件