The study results show as follows: water level drawdown appears before support crushing and water inrush; and the velocity of water level drawdown basically keeps constant.
结果表明：松散承压含水层水位下降超前于工作面压架突水，且水位下降速度基本保持不变。
In design of homogeneous earth dam, sudden drawdown of water level is always a control condition for stability of upstream slope.
在均质土坝设计中，水位骤降通常是上游边坡稳定计算时需控制的工况。
The stability of landslide is affected by the drawdown of reservoir water level.
库水位下降对滑坡的稳定性具有较大影响。
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