한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2006년도 춘계 학술발표회 논문집
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- Pages.1173-1180
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- 2006
알루미늄 전극의 용출에 따른 해성점토의 개량에 관한 실험적 연구
A Experimental Study on Improvement of Marine Clay through the Electrolytic Leaching Effect in Aluminum Electrode
- Kim, Jong-Yun (Dept of Civil & Environmental Engineering, Univ. of Hanyang) ;
- Yun, Myung-Suk (Dept of Civil & Environmental Engineering, Univ. of Hanyang) ;
- Jung, Seung-Yong (Expert Group for Earth and Environment Co. Ltd.) ;
- Kim, Soo-Sam (Dept of Civil & Environmental Engineering, Univ. of Hanyang)
- 발행 : 2006.03.24
초록
In this study, aluminum electrodes were put in marine clay which was taken from the south coast in Korea to increase the undrained shear strength by inducing the densification and cementation between clay particles and precipitates which were developed by electric decomposition in an electrode. To raise the cementation rate and reduce treatment time, high electric current (2.5A) was applied in each electrode at a semi-pilot scale soil box with marine clay. After the tests, the undrained shear strength was measured at designated points using a static cone penetration test device and sampling was conducted simultaneously in order to measure water content, pH and electric conductivity which would be the key for configuring the cementation effects indirectly. In the results of electric decomposition in aluminum electrode, the measured shear strength was increased considerably compared to the initial shear strength because of the cementation effect between iron ions and soil particles.