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Application of the Waxman Smits model for estimating groundwater quality from in situ measurements of electrical conductivity.

机译:Waxman Smits模型在通过电导率的现场测量估算地下水质量中的应用。

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摘要

The Waxman Smits model suggests a non-linear relationship between the bulk resistivity of formations containing clay minerals and the resistivity of the fluid in the pores. This model is applied to a site involving fine-grained soil deposits containing approximately 25% clay, and where shallow groundwater has been impacted by industrial activities. Quantitative estimates of pore water electrical conductivity from bulk electrical conductivity measurements in glacial till deposits can be made using a reasonable fit of data routinely collected during environmental site investigations. Data required to apply the Waxman Smits model includes: pore water electrical conductivity, cation exchange capacity, density and porosity of site soils, and interpreted electrical resistivity survey data. The most sensitive model parameters are: porosity, cation exchange capacity, cementation factor, and degree of saturation. Calibration and use of this model on sites with a history of subsurface disturbance or geologic heterogeneity is difficult.
机译:Waxman Smits模型表明,含粘土矿物的地层的整体电阻率与孔隙中流体的电阻率之间存在非线性关系。该模型适用于包含约25%粘土的细粒土壤沉积物的地点,并且浅层地下水已受到工业活动的影响。可以使用在环境现场调查期间常规收集的数据的合理拟合,从冰川直至沉积物的整体电导率测量结果中定量估算孔隙水的电导率。应用Waxman Smits模型所需的数据包括:孔隙水的电导率,阳离子交换容量,现场土壤的密度和孔隙率,以及解释的电阻率调查数据。最敏感的模型参数是:孔隙度,阳离子交换容量,胶结系数和饱和度。很难在具有地下扰动或地质异质性历史的站点上校准和使用该模型。

著录项

  • 作者

    Leszkowicz, John Kasimir.;

  • 作者单位

    University of Calgary (Canada).;

  • 授予单位 University of Calgary (Canada).;
  • 学科 Engineering Civil.; Engineering Environmental.
  • 学位 M.Eng.
  • 年度 2003
  • 页码 63 p.
  • 总页数 63
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;环境污染及其防治;
  • 关键词

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