小湾水电站1号导流底孔弧形工作门及埋件吊装

Hoisting and Installation of the Arc Gate and Embedded Part of the No.1 Low Diversion Tunnel in the Xiaowan Hydropower Station

小湾水电站导流底孔下游侧布置弧型工作门,弧门设置充压水封装置,给弧门结构件的吊装增加了难度,施工单位根据现场施工条件,制定出切实可行的吊装方案,顺利完成了弧门结构件的吊装,为后续弧门结构件的吊装积累了经验。

In the Xiaowan hydropower station, the low diversion tunnel is designed of a are gate at its downstream side, the pressured seal of the are gate makes hoisting and installation of the gate difficult. With a practical scheme the construction successfully set the gate into position, contributing good experience to installation of other gates in future.