摘要
钻孔抽水试验时,试抽出的钻孔涌水量远远超出预测且降深也无法满足规程要求时,只有根据试抽水的结果,重新设计抽水试验方案,重新选择井管的内径、抽水设备以及参数,风、测管的口径和下入深度等。本文通过一个钻孔抽水试验的经过,说明按规程选择以上各参数的方法及意义。
During borehole pumping test,if the pumped-out water yield is far more than the expected and the dropdown cannot meet the requirement,the only way is to redesign pumping test scheme according to trial pumping result,including re-choosing inner diameter of well pipe,pumping equipment and parameters,wind pipe and gauging pipe size and landing depth.This paper,based on a borehole pumping test process,told the method of choosing abovementioned each parameter according to standards and the implications.
出处
《安徽地质》
2012年第3期217-219,共3页
Geology of Anhui
关键词
抽水试验
设计
大流量
实施
pumping test
design
high flow
implementation
