The phreatic line is higher at upstream-type tailings dam and most of dams are in saturated state, thus easily leading to flow slide destruction under earthquake.

上游法尾矿坝浸润线较高，大部分坝体处于饱和状态，地震作用下易发生液化流滑破坏。

youdao

Russians were awoken to the threat posed by the destruction of a hydroelectric plant last year, when a major accident at the Sayano-Shushenskaya dam in Siberia threatened the lives of millions of people downstream.

VOA: standard.2010.07.21