Geotechnical Engineering (한국지반공학회지:지반)

Korean Geotechnical Society (한국지반공학회)
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Electrokinetic Strengthening of Soft Marine Clays in E/K Cell

Electrokinetic cell을 이용한 해성점토지반의 개량효과 연구

  • 이승원 (현대건설(주) 기술연구소) ;
  • 이영남 (현대건설(주) 기술연구소 연구위원, Director, Geotechnical Research Centre, University of Western Ontario, Canada)
  • Published : 1998.08.01
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Abstract

To study the improvement of soft marine clay from southern coast of Korea under theelectroosmosis and electrophoresis conditions, several electrokinetic tests were carried out in electrokinetic(E/K) cell. In electroosmosis tests, various treatment times and current densities were used to investigate the strengthening effect under different conditions. From these tests results, it may be noted that electroosmotic strengthening of soft marine clay was effective in proportion to unit power consumption, current density and treatment time. However, electrophoresis method was not effective for thin soil.

본 연구에서는 /K cell(286\times254\times119mm)$을 이용하여 해성점토 지반에서의 electrokinetic 공법에 의한 지반개량효과를 비교 연구하였다. 남해안 해성점토에 대해서 순수 재하시험과 저전압을 이용한 전기삼투시험, 그리고 고전압을 이용한 전기영동시험을 실시한 결과, 저전압 전기삼투에 의한 지반개량 효과가 제일 컸으며, 고전압 전기영동에 의한 지반개량효과는 거의 없는 것으로 나타났다. 또한 전기삼투시험에서는 전류가동시간과 전류밀도가 클수록, 즉 전력소모량이 많을수록 지반 개량효과가 크게 나타났다.

Keywords

References

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