A Spreadsheet Method of Estimating Best-Fit Hydraulic Gradients Using Head Data from Multiple Wells

J.F. Devlin

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A Spreadsheet Method of Estimating Best-Fit Hydraulic Gradients Using Head Data from Multiple Wells

机译：使用多口井水头数据估算最佳水力坡度的电子表格方法

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Hydraulic gradients from planar water tables, or piezometric surfaces, and horizontal flow regimes can be quickly and conveniently calculated from data sets involving numerous wells. The matrix-solving functions of a modern spreadsheet program (Excel~(~R)) were used to determine the equation of a water-table plane, Ax + By + Cz - D = 0, and the equation coefficients were then used to determine the magnitude of the hydraulic gradient, according to gradient = [(A~2+B~2)/C~2]~(1/2), and its direction, according to α = arctan B/A, where a is the angle measured from the x- axis.

机译：可以从涉及众多井的数据集中快速方便地计算出平面地下水位或测压表面的水力梯度以及水平流态。现代电子表格程序的矩阵求解函数（Excel〜（〜R））用于确定水平面的方程Ax + By + Cz-D = 0，然后使用方程系数确定根据坡度= [（A〜2 + B〜2）/ C〜2]〜（1/2）的水力坡度大小，以及根据α= arctan B / A的水力坡向，其中a是从x轴测量的角度。

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《Ground water》 |2003年第3期|p.316-320|共5页
作者
J.F. Devlin;
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Geology Department, University of Kansas, 1475 Jayhawk Blvd., Lawrence, KS 66045;

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正文语种 eng
中图分类水文科学（水界物理学）;
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A Spreadsheet Method of Estimating Best-Fit Hydraulic Gradients Using Head Data from Multiple Wells

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