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tian liao zhen kong jing
Author(s): 
Pages: 181-182
Year: Issue:  3
Journal: Underground Water

Keyword:  真空井填料开发地下水经济效益河北平原浅层地下水单井出水量含水砂层过滤结构含水层;
Abstract: <正> 河北平原开发地下水高潮中,涌现出一种新井型,叫做填料真空井。该井型是从手压真空并发展到机带真空井后,为进一步提高单井出水量,在采取增大孔径,回填砾料改进过滤结构,扩大进水面积等新工艺的基础上试验成功的。由于成井质量可靠,经济效益显著。
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