한국지반공학회지:지반 (Geotechnical Engineering)

한국지반공학회 (Korean Geotechnical Society)
권호 표지

Electrokinetic cell을 이용한 해성점토지반의 개량효과 연구

Electrokinetic Strengthening of Soft Marine Clays in E/K Cell

  • 이승원 (현대건설(주) 기술연구소) ;
  • 이영남 (현대건설(주) 기술연구소 연구위원, Director, Geotechnical Research Centre, University of Western Ontario, Canada)
  • 발행 : 1998.08.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

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.

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.

키워드

참고문헌

  1. 대한토목학회 학술발표회집 전기삼투배수에서 간극수의 염분농도가 미치는 영향 김수삼;한상재;김경현;김운형
  2. 대한토목학회 학술발표회집 전기삼투배수에서의 전기·화학적 변화에 관한 연구 김수삼;한상재;김현기;방준호
  3. Zeta Potential in Colloid Science Hunter,R.J.
  4. Canadian Geotechnical Journal v.28 Electro-osmotic strengthening of soft sensitive clays Lo,K.Y.;Inculet,I.I.;Ho,K.S.
  5. Canadian Geotechnical Journal v.28 Field test of electro-osmotic strengthening of soft sensitive clays Lo,K.Y.;Ho,K.S.;Inculet,I.I.
  6. Colloids Surfaces v.6 Electo-osmotic dewatering of clays Lockhart,N.C.
  7. Geotechnique v.41 Conduction phenomena : from theory to geotechnical practice Mitchell,J.K.
  8. Fundamentals of Soil Behaviour (2nd ed.) Mitchell,J.K.
  9. Dielectrophoresis Pohl,H.A.
  10. Journal of Electrostatics v.33 Low-frequency dielectrophoresis in clay-water-electrolyte systems Shang,J.Q.;Inculet,I.I.;Lo,K.Y.
  11. ASCE, Journal of Geotechnical Engineering v.121 no.3 Polarization and conduction of clay-water-electrolyte systems Shang,J.Q.;Lo,K.Y.;Inculet,I.I.
  12. Proceedings of the International Symposium on Fine Practice Process v.2 Dewatering fine-practice suspensions with direct current Sprute,R.H.;Kelsh,R.H.
  13. Journal of Applied Electrochemistry v.17 Electrokinetic dewatering and thickening Sunderland,J.G.