针对贵州北盘江马马崖一级水电站下游混凝土拱桥的工程特点，分析了工程中预制吊装方案存在的风险及难点，着重对基础混凝土浇筑、主拱圈施工、上部立柱施工等技术进行了研究，并提出了优化方案，取得了满意的施工成果。%In light of concrete arch bridge engineering features of Mamaya first-level hydropower station of Beipanjiang in Guizhou,the paper ana-lyzes prefabricated hosting scheme risks and characteristics,mainly studies concrete casting,main arch ring construction and upper column con-struction and other techniques,and puts forward optimal schemes. As a result,it achieves satisfied construction achievements.
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