The building of the Shibahara housing complex caught the serious liquefaction damage of subsidence and the slant by the 2016 kumamoto earthquake. We gave information to Kosa Town by the result of the liquefaction damage investigation just after an earthquake. Kosa Town had a discussion with Kumamoto Pre-fecture based on this data, and decided to take the liquefaction countermeasure. After that, we received requests for work such as house investigation and soil survey of Shibahara housing complex from Kosa Town, and held several informative briefing sessions so far. Currently, we are advancing the liquefaction countermeasure project by underground water level lowering construction method with the consent of residents.In this paper, we aim to verify the liquefaction countermeasure using groundwater level lowering method by analyzing the mechanism of liquefaction damage in Shibahara housing complex.
