The large diameter tube well is an effective way for supplying domestic water with good water quality, large water volume, and cyclical recharge.
大口径管井取水水质好，水量大，能得到周期性补给，是解决生活用水的有效途径。
Taking the geological condition in the harbour district Jingtang Port as the model, the detail analysis on lowering water level by large diameter well point are given in the paper.
以京唐港地区地质条件为模型，对大口径井点降水进行了详细的分析，对大口径井点降水在实际工程应用具有理论参考价值。
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