也论“单位涌水量就是导水系数”

Also revisit 'The specific well yield is the transmissivity'

针对所谓的井抽水流量公式,指出其在按达西定律进行推导时,过水断面的确定存在错误,不能反映抽水状态下井周侧进水的实际渗流状态。其公式中的补给半径及C值的确定无理论依据。由于水力性质不同,也不能以所谓的承压水抽水试验去验证温策尔所述内布拉斯加州潜水含水层抽水试验中的部分渗流现象。因此,"单位涌水量就是导水系数"的结论没有说服力。

In this paper,it is pointed out that in the formula of the well pumping discharge,there is an error in the determination of the cross section of water induced according to Darcy s law,and this formula cannot reflect groundwater flow around the pumping well.There is no theoretical evidence for the influence radius and the factor C in the formula.Due to the different hydraulic properties,we cannot use the so-called pumping test in a confined aquifer to verify the partial seepage in the pumping test of the phreatic aquifer in Nebraska described by Wenzer.Therefore,the conclusion that the specific well yield is the transmissivity is not cogent.