龚嘴水电站

龚嘴水电站自运行以来，尾水位的抬高一直威胁着厂房（指地面厂房）的消防安全。

Since Gongzui Hydropower Station put into operation , the tail water level always threaten the flood control safety against pow er-house ( in di cating powerhouse on the ground ) .

龚嘴水电站10号底孔检修门段修复，采用了浮体闸门系统坝前深水（60m以浅）自动封堵底孔进水口，形成旱地施工条件之后进行检修门段洞内修复的施工方法并获得成功应用。

To repair the emergency gate at the bottom scouring sluice No. 10 , we adopt floating gate system to block the bottom outlet automatically in 60 m underwater to make the repair construction in the dry , which proved to be successful .

本文叙述了采用PBM-3聚合物混凝土，通过导管在龚嘴水电站10号冲沙底孔水下58m水深范围内，整体修补了一个封水面，使浮体闸门一次性封水成功。

This article introduces the experience on repairing sealing surface whole by duct casting PBM-3 polymer concrete in the scope under water 58m , which made floating gate sealing success only by one effort .