巴贡水电站混凝土陡槽溢洪道施工

Construction of concrete chute-spillway of Bakun Hydropower Station

巴贡水电站地处降雨量充沛的热带岛屿,枢纽中有1座202 m高的混凝土面板石坝、陡槽溢洪道、放水隧洞和水电厂。溢洪道下泄流量大,落差大,泄水冲沟对施工干扰大,施工道路及设备布置困难。针对施工中的难点制定了施工方案,重点论述其中的道路规划、设备布置、模板选型及混凝土浇筑方案等。

The Bakun Hydropower Station is located at a tropical rainy island, and is consisted of a 202 m high CFRD, a long chute-spillway at chute-spillway bring abo left-bank, a diversion tunnel and a power plant. The gullies washed out by discharge flow from ut serious disturbances to the general layout of construction equipment and construction roads. In the light of these difficulties, a careful construction scheme is worked out, the focal points are on the layout of construc- tion roads and construction equipment, the selection of formwork, and the concrete placing-curing works etc.