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在供水勘察工作中,由于条件的限制,抽水孔往往采用非完整井型的。以前应用非完整井公式计算渗透系数时,套用国外的一些公式,如马斯盖特、吉林斯基、巴布什金、纳斯别尔格等公式。在这次编制规范过程中,着重收集了国内一些单位的研究成果,从中选用两式列为规范第92条公式(2)和公式(3),供大家选用。当然,如果条件符合时,也可以选用其它合适的公式。通常计算渗透系数的公式,无论是完整井或是非完整井的,大多数都是遵循达西定律推导的。所以,应用公式时需要满足地下水水流的线性关系。但是,从抽水试验中获得的Q-S资料,往往都是曲线关系。为了满足
In water supply survey work, due to the limitation of the conditions, the pumping holes often use incomplete wells. When using the nonholonomic well formula to calculate the permeability coefficient, some foreign formulas were applied, such as Masgate, Jilinski, Babuskin, and Nassberg. In this compilation of the normative process, the research results of some domestic units were emphatically collected, and the two formulae were selected as the formula 92 (2) and formula (3) for use by all. Of course, if the conditions are met, other suitable formulas can also be used. The formula for calculating the permeability coefficient is usually derived from Darcy’s law, whether it is a complete well or an incomplete well. Therefore, the application of formulas must satisfy the linear relationship of groundwater flow. However, the Q-S data obtained from the pumping test is often a curve relationship. to satisfy