碧口水电站左岸洪洞弧形工作闸门安装于洞内工作门室,是大型高压弧形闸门,孔口尺寸8×9米,工作水头70米,承受总水压6050吨,闸门自重213吨(不计加重块77.7吨),安装及运输条件都很苛刻。为此比较了几种吊装方案,最后确定在右岸洪洞8×10—60米弧形工作闸门安装经验的基础上,对交铰支臂整体吊装方案作了改进,在实践中取得了较好的效果,现介绍如下: Bikou hydropower station on the left bank Hongdong arc work gate installed in the door work chamber, is a large high-pressure arc gate, orifice size 8 × 9 meters, working head 70 meters, to withstand the total water pressure of 6050 tons, 213 tons deadweight gate Excluding weight 77.7 tons), installation and transportation conditions are very harsh. Based on the experience of installation of 8 × 10-60m arc work gate in Hongtong on the right bank, this paper improves the overall lifting plan of the cross-hinge arm and achieves a better result in practice The effect is as follows: