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Estimation of the Effective Hydraulic Conductivity in the Granite Area as an Equivalent Continuum Medium  

김경수 (한국원자력연구소)
김천수 (한국원자력연구소)
배대석 (한국원자력연구소)
Publication Information
The Journal of Engineering Geology / v.12, no.3, 2002 , pp. 319-332 More about this Journal
Abstract
This study is focused on the characterization of an effective hydraulic conductivity in each hydrogeologic unit assumed as an equivalent continuum medium in the granitic area. Four boreholes of 3" diameter were installed and a Multi-packer system was facilitated in the selected borehole. Various in-situ tests including the fracture logging, constant injection and fall-off tests, slug and pulse tests were carried out. A hydrogeologic unit was defined into the upper and lower zones based on the variation of fracture properties and hydraulic conductivities. The difference of the result obtained by the various hydraulic tests and the effective characterization techniques on rock mass permeability are also discussed. The effective hydraulic conductivity of the upper unit was measured by two times(5.27E-10 m/s~7.57E-10 m/s) that of the lower unit(2.45E-10 m/s~6.81E-10 m/s)through the constant injection and fall-off tests.
Keywords
fractured rock mass; equivalent continuum medium; constant injection/fall-off test; slug test; pulse test; effective hydraulic conductivity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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