摘要
本文介绍一种近似计算的解题途径:将定厚土层中的平面渗流看成是轴对称渗流的特例,用等效椭球井代替不完全井,把半无限透水土层渗流看成是定厚土层渗流的特例,结合数值计算和电拟实验成果返推逼近,得出适用于小贯入度的任意井径的轴对称不完全井渗流近似计算表达式。此外,本文将长列不完全井依次分成等阻抗长列完全井和单个轴对称不完全井两部分分别计算,列出长列不完全井的近似计算表达式。针对三维渗流计算和试验中不完全井列的处理以及渗流参数反求等问题,推荐了几种处理方法。
This paper presents a problem approach to which the plane seepage flow in a aquifer of uniform thickness is considered as a special case of a axially symmetric seepage, a partially penetrating well is replaced with equivalent ellipsoid well and the seepage flow into aquifer without limitation of thickness is considered as a special case of seepage flow in a aquifer of uniform thickness. Together with the numerical calculation and electric analog experiments, an approximate expression is obtained of seepage flow into a partially penetrating well with axial symmetry, suitable for arbitary well radius with small degree of penetration. In addition, a linear series of a partially penetrating well is in turn divided in this paper into two fragments: a linear series of a fully penetrating well with equivalent resistance and a single partially penetrating well with axial symmetry, to formulate a approximate expression for a linear series of a partially penetrating well. Several analysis methods is recommended in accordance with the treatment of a partially penetrating well series and the problem for seepage parameters to extrapolate in the calculation and experiment of 3-D seepage flow.
出处
《长江科学院院报》
CSCD
北大核心
1990年第3期45-54,共10页
Journal of Changjiang River Scientific Research Institute
关键词
不完全井
渗流
计算
partially penetrating wells, seepage flow, confined aquifer, equivalent resistance, ellipsoid wells, narrow trenches, a liner series of well
