Slug test analysis to evaluate permeability of compressible materials
- Authors
- Choi, Hangseok; Nguyen, The-Bao; Lee, Chulho
- Issue Date
- 7월-2008
- Publisher
- BLACKWELL PUBLISHING
- Citation
- GROUND WATER, v.46, no.4, pp.647 - 652
- Indexed
- SCIE
SCOPUS
- Journal Title
- GROUND WATER
- Volume
- 46
- Number
- 4
- Start Page
- 647
- End Page
- 652
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/123052
- DOI
- 10.1111/j.1745-6584.2008.00453.x
- ISSN
- 0017-467X
- Abstract
- The line-fitting methods such as the Hvorslev method and the Bouwer and Rice method provide a rapid and simple means to analyze slug test data for estimating in situ hydraulic conductivity (k) of geologic materials. However, when analyzing a slug test in a relatively compressible geologic formation, these conventional methods may have difficulties fitting a straight line to the semilogarithmic plot of the test data. Data from relatively compressible geologic formations frequently show a concave-upward curvature because of the effect of the compressibility or specific storage ( Ss). To take into account the compressibility of geologic formations, a modified line-fitting method is introduced, which expands on Chirlin's (1989) approach to the case of a partially penetrating well with the basic-time-lag fitting method. A case study for a compressible till is made to verify the proposed method by comparing the results from the proposed methods with those obtained using a type-curve method ( Kansas Geological Survey method [Hyder et al. 1994]).
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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