INTRODUCTION
Due to the 2011 Tohoku Earthquake off the Pacific coast, the social interests and attentions to ground investigation methods and liquefaction damage of detached houses have been increasing in Japan. The Land, Infrastructure, and Transport Ministry of Japan officially uses the Swedish Weight Sounding (SWS) test as determined by Notice 1113. The authors utilized the SWS test to measure the groundwater level using an SWS test hole, and it was found that the groundwater measurement technique described in this paper may become an effective tool for simple soil classification and rough judgment of the liquefaction possibility at the ground of detached houses.
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2014. International Society of Offshore and Polar Engineers
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