Excavation of shafts and research galleries at the Mizunami Underground Research Laboratory (MIU); Construction progress report, fiscal year 2009

Geoscience Facility Construction Section, Tono Geoscience Center

This progress report presents an outline compilation of construction activities, primary tasks performed, construction progress and problems reported, in Fiscal Year 2009. The outline of construction activities is a summary based on the scope of work planned in 2009: the main activities are based on the Tono Geoscience Center weekly reports; and the construction progress is based on the planned and actual schedules. The problems reported are based on defects recording by the safety manager of the Geoscience Facility Construction Section. Regarding the plan and actual performance of the MIU construction work part III (March 16, 2008 - March 15, 2010) performance carried out from April 1, 2009 until March 15, 2010 is described in this report.