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A Study on Permeability Variation by Aperture in the Single Discontinuity Considering Pneumatic Fracturing  

정교철 (안동대학교 지구환경과학과)
김기종 (한주토건(주))
부성안 (농업기반공사 농어촌연구원)
서용석 (한국건설기술연구원 토목연구부)
Publication Information
The Journal of Engineering Geology / v.12, no.2, 2002 , pp. 151-166 More about this Journal
Abstract
Groundwater development as a means of acquiring subsidiary water resource is very important for the persistent security of water resource. Nowadays, pneumatic fracturing technology which was developed in the advanced countries is applied for increasing pumping rate and eliminating contaminants. This study gives an experimental data to clarify permeability characteristics of the single discontinuity which is newly developed or increased in aperture by the pneumatic fracturing or damage propagation of the natural barrier for the nuclear waste disposal. On the basis of understanding the relationship between permeability and hydraulic aperture the result could apply as one of the basic data for researches concerned with increasing pumping rate and eliminating contaminants. Hydraulic aperture is decreased exponentially with increasing confining pressure and proportioned to permeability in the same confining pressure. Especially, with the increasing aperture permeability of coarse- and medium- grained granite shows the more rapid increasing than that of fine- grained granite.
Keywords
pneumatic fracturing technology; damage propagation; permeability; hydraulic aperture; granite;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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