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http://dx.doi.org/10.7843/kgs.2009.25.12.47

Modification of Bouwer and Rice Method to Evaluate Hydraulic Conductivity of Cutoff Wall Considering Filter Cake Development  

Nguyen, The-Bao (School of Civil, Environmental, & Architectural Engrg., Korea Univ.)
Lee, Chul-Ho (School of Civil, Environmental, & Architectural Engrg., Korea Univ.)
Kwak, Tae-Hoon (School of Civil, Environmental, & Architectural Engrg., Korea Univ.)
Choi, Hang-Seok (School of Civil, Environmental, & Architectural Engrg., Korea Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.25, no.12, 2009 , pp. 47-55 More about this Journal
Abstract
As a conventional line-fitting method, the Bouwer and Rice method has been popularly adopted to estimate the hydraulic conductivity of an aquifer through a slug test. Because a vertical cutoff wall is usually very compressible and features a small wall thickness, the Bouwer and Rice method should be carefully applied to analyzing slug test results to estimate the hydraulic conductivity of vertical cutoff walls. In addition, a relatively impermeable layer, called a filter cake, formed at the interface between the cutoff wall and the natural soil formation makes it difficult to use the Bouwer and Rice method directly. In order to overcome such limitations, the original Bouwer and Rice method has been modified by incorporating the concept of the flow net method. In this modification, the geometry condition of cutoff walls including the filter cake is effectively considered in evaluating the hydraulic conductivity of a vertical cutoff wall.
Keywords
Bouwer and Rice method; Filter cake; Flow net method; Slug test; Vertical cutoff wall;
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Times Cited By KSCI : 1  (Citation Analysis)
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