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Experimental Study for Consolidation by Electric Heating Systems  

Park, Min-Cheol (국립금오공과대학교 토목공학과)
Im, Eun-Sang (수자원공사 기반시설연구소)
Lee, Kum-Sung ((주)건화 감리CM본부)
Han, Heui-Soo (국립금오공과대학교 토목공학과)
Publication Information
Journal of the Korean GEO-environmental Society / v.13, no.10, 2012 , pp. 43-53 More about this Journal
Abstract
This study deals with the conventional consolidation methods like preloading and vertical drains. For it, Two different mechanism, i.e., increasing of permeability and evaporating of pore water were studied. The marine clays excavated in Incheon were heated at low temperature($90^{\circ}C$) to increase the permeability. Also, Microwave oven and high-temperature electric heater were used for pore water evaporation. Several points raised from the experiments. To fix them, the electric heating system was revised to upgrade the field application and drain efficiency of pore water, and the marine clays were heated by revised electric heater at high temperature($250^{\circ}C$). From Experimental result showed that results, high-temperature heater induced the pore water evaporation and displayed the excellent consolidation behavior. In addition, the cone index of heated clays were increased about 19 times, which suggested that electric heating system could be applied for ensuring the trafficability of heavy equipments.
Keywords
Consolidation; Marine clay; Electric heater; Microwave oven; Trafficability;
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