Excavation of shafts and research galleries at the Mizunami Underground Research Laboratory (MIU); Construction progress report, fiscal year 2008

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 2008. The outline of construction activities is a summary based on the scope of work planned in 2008: the main activities are based on the Tono Geoscience Center weekly reports; and the construction progress is based on the planned and actual schedules and the Tono Geoscience Center weekly reports. The problems reported are based on accident reports, natural disasters, nonconformance and defects recording by the safety manager of the Geoscience Facility Construction Section. Regarding the plan and actual performance of MIU construction project No.3 (March 16, 2008 - March 15, 2010) performance carried out until March 31, 2009 is described in this report and rest of the performance started from April 1, 2009 is supposed to be described in construction progress report from fiscal year 2009 onward.