应用桥式滤水管证明了在松散岩类粉细砂含水层开采时，可减少勘探施工和生产管理成本，应大力推广。
For utilizing the groundwater resources in aquifer of fine silt and decreasing producing cost of water, the bridging filter shall be positively popularized.
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 show as follows: water level drawdown appears before support crushing and water inrush; and the velocity of water level drawdown basically keeps constant.
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