水下封堵门技术在水口水电站中的应用

Application of Underwater Gate Blockage Technology on Shuikou Hydropower Station

水口水电站2号泄水底孔事故检修门槽破坏严重,业主及专家几经论证多方考察最后决定采用水下安装浮体封堵门技术对水口水电站2号泄水底孔事故检修门槽进行修复。该方法直接在水下利用浮式闸门封堵底孔进水口,形成旱地施工条件,之后在检修门槽洞内修复并获成功。为大坝类似结构水下除险消缺找到了技术可行、安全可靠、经济有效的新方法,新工艺。

The damage of emergency gate for No.2 sluicing bottom hole of Shuikou Hydropower Station is heavy. After several demonstrations and surveys by the Owner and experts, it is determined to adopt the underwater gate blockage by installing floating material to repair the emergency gate for No.2 sluicing bottom hole of Shuikou Hydropower Station. Such method directly uses floating gate to block the inlet of bottom hole under water in order to form dried- land construction conditions. The repair has gained success. Such method provides new technology with feasible technology, safety and reliability and economy and effectiveness for the underwater damage removal of similar structures of dam.