柔性封堵在尾矿坝抢险治理中的应用

Application of Flexible Blockage Process in Emergency Treatment of Tailings Dam

南桥尾矿库2号初期坝的混凝土防渗心墙失效,坝基渗透破坏严重,坝体向下游倾斜,采用传统“刚性封堵”治理效果不佳,笔者运用水力反滤原理,采用“柔性封堵”工艺对2号初期坝进行抢险治理,取得较好效果。

Because the concrete antiseepage central core failed in the preliminary dam No. 2 of Nanqiao tailings pond, the severe seepage failure of dam foundation occurred and the dam body inclined downstream. The conventional ＂rigid blockage＂ process was used for the treatment of this dam, but the desired effect couldn＇t be achieved. Based on waterpower inverse filtering theory, the ＂flexible blockage＂ process is used for the emergency treatment of the preliminary dam No. 2 and better effect is acquired.