Development of research program and design concept of the Mizunami Underground Research Laboratory

The Mizunami Underground Research Laboratory (MIU) is planned to be constructed at the research site of JNC in Mizunami, Gifu prefecture. A wide range of geoscientific research and development activities which have been performed in and around the Tono mine for these years, is planned to extend in the laboratory. The MIU consists of surface and underground facilities down to a depth of about 1,000 meters. This report describes the overall layout and the basic construction method of the underground facility, including the composition of the overall research program which is necessary to design the underground facility and to select its construction method. (author)