This paper presents sand and cobble foundation treatment of overflow dam, guide wall and overflow weir by "high pressure jet grouting" at an in Hydropower Station.
本文主要介绍应用“高喷”技术对安居水电站溢流坝、堰坝导墙、溢流堰天窗沙卵石基础处理的方法和体会。
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Compared with perforated pipe distributor, perforated weir-riser distributor has smaller wall flow, bigger operation elasticity and simpler structure, it is easy to install.
A lot of on-spot experiments discovered that the water level and flow rate of wall-pressing weir flow are not accord with that of the normal weir flow.