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Analytical Interpretation of Slug Test in a Vertical Cutoff Wall

机译：垂直隔断墙段塞测试的解析解释

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摘要

An analysis method for slug tests performed in a partially penetrating well within a vertical cutoff wall is presented. A steady-state shape factor for evaluating hydraulic conductivity of the material within the wall was derived by applying the method of images to the previously developed analytical solution of Zlotnik et al. (2010) for an infinite aquifer. Two distinct boundary conditions were considered: constant-head boundary for the case of direct contact between the wall and the aquifer, and no-flux boundary representing an impermeable filter cake on the sides of the wall. The constant-head and no-flux boundary conditions yield significantly higher and lower shape factors, respectively, than those for the infinite aquifer. Consequently the conventional line-fitting method for slug test analysis would yield an inaccurate estimate of the hydraulic conductivity of a vertical cutoff wall.
机译：提出了一种在竖向防渗墙内的部分穿透井中进行的段塞试验的分析方法。通过将图像方法应用于以前开发的Zlotnik等人的分析解决方案中，得出了评估壁内材料的水力传导率的稳态形状因数。 （2010年）的无限含水层。考虑了两个截然不同的边界条件：在壁与含水层之间直接接触的情况下为常压头边界，在壁的侧面表示无渗透性滤饼的无通量边界。恒定水头和无水流边界条件分别产生比无限含水层高和低的形状因子。因此，用于段塞测试分析的常规管道拟合方法将无法准确估算出垂直防渗墙的水力传导率。

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  • 来源
    《Ground water》 |2014年第2期|284-290|共7页
  • 作者

    Jeehee Lim; Dongseop Lee; Vitaly A. Zlotnik; Hangseok Choi;

  • 作者单位

    School of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907;

    School of Civil, Environmental, Et Architectural Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul, South Korea;

    Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln, 214 Bessey Hall, Lincoln, NE 68588;

    School of Civil, Environmental, Et Architectural Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul, South Korea;

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