1985年5月25日至29日,水利水电建设总局会同中国水力发电工程学会金属结构专业委员会在富春江水工机械厂,主持召开了关于龙羊峡水电站泄洪底孔平面链轮事故检修闸门和偏心铰弧形工作闸门技术鉴评会。出席会议的有有关设计、制造、施工及大专院校等33个单位的64位代表。由西北勘测设计院设计、富春江水工机械厂制造的链轮门和偏心铰弧门,设计水头均为120米,孔口 From May 25 to May 25, 1985, the Bureau of Hydraulic and Hydropower Construction, in conjunction with the Metal Structure Committee of China Hydropower Engineering Society, hosted the Fuchun River Hydraulic Machinery Factory and held the gate inspection on the spillway flushing spillway plane chain sprocket at the Longyangxia Hydropower Station Eccentric hinge arc work gate technical evaluation. Present at the meeting were 64 representatives of 33 units including design, manufacture, construction and tertiary institutions. Design by the Northwest Survey and Design Institute, Fuchunjiang Hydraulic Machinery Factory sprocket door and eccentric hinge arc door, the design head are 120 meters, the orifice