Therefore, study on the deformation and breakage law of upper and down floor of coal layer, the character of formation, each fault factor are the key problem for prevention the water inrush.
因此，对煤层顶底板的变形破坏规律、构造特征以及断层各要素的研究都是防治奥灰岩含水层突水的关键问题。
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。
The study results can play an important role in revealing mechanism of water-inrush induced by fault activation.
研究成果对揭示断层带活化及突水机理具有重要作用。
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