地下水对栾川炉场沟尾矿坝稳定性影响分析

The Impact of Water Table Fluctuation on Stability of the Tailings Dam at the Luanchuan

据计算结果,栾川炉场沟尾矿坝在正常运行情况下是稳定的,地下水位(浸润线水位)是实测水位;在洪水运行情况下和特殊运行情况下是不稳定的,洪水运行情况下,预测地下水位(浸润线水位)距离坝顶1 m,地下水位(浸润线水位)埋深较浅时尾矿坝不稳定,提出了相应的预防措施。

The embankment of the tailings pond in Luanchuan Luchanggou is stable in normal operation condition.But in flooding season,safety of the dam is uncertain.The study predicted that under flooding condition,ground water level is one metre from the dam top;in special operation condition,groundwater level may exceed the top of the dam.So the tailings dam is not stable when the groundwater table depth is small.