不同边界条件下非完整井抽水试验渗透系数计算方法研究

在实践中经常会遇到比较复杂的水文地质条件,或者裘布衣假定不成立,或者计算太过复杂,现有的规范、手册等未给出这些条件下稳定流抽水试验渗透系数的求解公式。为此,本文运用汇源理论和镜像法,结合具体工程实践,推导了在无限厚含水层和不同边界条件下非完整井稳定流抽水试验渗透系数的计算公式,通过工程勘察实践验算,验证了计算方法和公式的合理性。

Study on the permeability coefficient calculation of pumping test of partial penetrating well under different boundary conditions

In practice,engineers often come up against difficult questions such that the hydrogeological condition is so complex that Dupuit assumption does not hold,or the calculation is too complex to apply to practice.Aimed at this cause,used the Source and Sink theory and method of images,according to the engineering practice and deduced the formula for calculation for the permeability coefficient in steady flow of pumping test of partial penetrating well,besides,the experiment should be conducted in the different boundary conditions and infinite aquifer,and its rationality has been testified by experiments in engineering investigation.