International Session (Disaster Prevention and Mitigation)

[CS2-30] Experimental research in soil liquefaction inside an embankment resting on soft ground

〇Yuuji Murai¹, Tomoki Gondai¹, Thirapong Pipatpongsa¹, Kitaoka Takafumi², Hiroyasu Ohtsu³ (1.Kyoto University, 2.Kansai University, 3.National Institute of Technology, Matsue College)

Keywords: Soil liquefaction, soil arching, Reliquefaction, embankment, Dynamic behavior

The Tohoku earthquake occurred on 11^th March 2011 led to catastrophic devastations including liquefactions underneath embankments which was located on the impermeable ground. Many researches focused on the liquefaction occured at ground have been conducted before 2011. However, this huge earthquake led to the liquefaction inside embankment, therefore the research focusing on the liquefaction inside embankment would be important for preparedness of the coming huge earthquakes but such few researches have been done at this moment. This research focuses on the initial stress distribution and aim to research the relationship between liquefaction occurrence and initial stress condition.