渠江风洞子航运工程枢纽总平面布置

General layout of Qujiang Fengdongzi navigation hub

渠江风洞子航运工程位于渠江干流中游,河道为典型的山区河流,具有洪枯水位变幅大、河道弯曲系数大、洲岔发育的特点,工程开发任务兼具通航、发电、改善城市水环境等,综合利用要求高。由于枢纽建筑物多,总体布置需同时满足船闸、泄水闸、发电厂房、鱼道等建筑的使用条件、便于运营管理及施工导流建筑物永临结合等,难度较大。通过船闸左右岸比选、船闸与电站同异岸布置、鱼道出口远近坝布置等多方案比较分析,结合水工物理模型试验,提出船闸走汊、泄水顺槽、鱼道顺堤的总平面布置方案,实现了通航为主的前提下,兼顾枢纽各建筑物布置要求的目标。

The Qujiang Fengdongzi navigation project is located in the middle reaches of the main stream of the Qujiang River.The river course indicates that it is a typical mountain river.It has the characteristics of large fluctuations of flood and dry water levels,a large river bend coefficient,and development of forks.The project development tasks include navigation,power generation,urban water environment improvement,etc.,and the comprehensive utilization requirements are high.Due to the large number of buildings in the hub,the overall layout needs to meet the operating conditions of the ship locks,release sluices,power plants,fishways,and other buildings at the same time,facilitate operation and management,and combine the construction diversion buildings with permanent access,which is relatively difficult.Through the comparison and selection of the left and right banks of the ship lock,the layout of the ship lock and the power station on the same or different banks,the layout of the far and near dams at the exits of the fishways,combined with the hydraulic physical model test,this paper proposes the general layout of the ship lock along the branch,the drainage channel,and the fishway along the embankment.The scheme realizes the consideration of the layout requirements of each building of the hub under the premise of navigation.