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龙滩水电站坝顶门机跨距27.5m,额定起重量2×2000KN,与国内水电站同类型坝顶门机相比较属特大型。龙滩坝顶门机的安装难点在于门机上下游支腿距离坝体边缘较近,需要解决支腿吊装时加固问题,同时门机的单节主梁长度及重量较大,需要解决门机主梁的吊装手段问题。安装单位通过跟随坝体浇筑上升进度及时预埋加固挑梁及发挥200吨汽车吊的极限性能,成功解决了以上难题。
Longtan Hydropower Station dam gantry crane span of 27.5m, rated lifting capacity of 2 × 2000KN, compared with the same type of hydropower station dam top door compared to extra large. Longtan dam top door machine installation difficulty is that the upstream and downstream door legs away from the edge of the dam body closer to the need to solve the reinforcement of the leg when lifting the same time, single door gantry length and weight of large, need to solve the main door Beam lifting means problems. The installation unit successfully solved the above problems by following the ascending progress of the pouring of the dam and timely embedding and reinforcing the load beam and exerting the ultimate performance of a 200-ton truck crane.