摘要
在分析抽水试验时,使用抽水井的降深数据必须消除井损。本文研究了井损的消除方法。通过带观测孔的标准抽水试验直接确定井损的准确值,然后用井损的准确值检验已有的各种井损经验公式,提出了消除井损的合理步骤和方法,为解决井损研究成果与工程实际长期脱节的问题提供了参考。
It is necessary to identify the well loss if drawdown in the pumping well is utilized in analysis of pumping test. In this paper, the methods of well-loss identification are investigated. A standard pumping test with several observation wells is carried out and the accurate well-loss is directly obtained. Based on the checkout of empirical equations through the pumping test, reasonable routines and methods are suggested in identification of well-loss. It is available to reduce the gap between theoretical study of well-loss and observations in practice.
出处
《工程勘察》
CSCD
北大核心
2009年第11期44-47,90,共5页
Geotechnical Investigation & Surveying
关键词
井损
抽水试验
降深
抽水井
观测井
Well-loss
pumping test
drawdown
pumping well
observation well
