A study on prediction of squeezing and rockburst based on surface exploration for selection of HLW disposal site in Japan

摘要

For the selection of the Detailed Investigation Areas for HLW disposal in Japan, predicting the tunnel constructability is one of the requirements together with assessing long-term safety. This paper dealt with the geological factors relating to difficult tunneling such as squeezing and rockburst. Also it dealt with the prediction of rockburst and squeezing. Another paper in this Congress (Sawada et al. 2011) deals with the engineering characteristics of rock mass through rock mass classification based on rock core.