Rockbursts are a dynamic hazard induced by tunneling (Fig. 1.1.1). Many rockbursts have occurred in highway tunnels: in Norway (Myrvang & Grimstad, 1983); the Kanetsu tunnel in Japan (Saito, Tsukada, Inami, Inoma, & Ito, 1983); the Karisaki tunnel in Japan (Katusyama, 1994); tunnels in China (Tjong Kie, 1988); a waterway tunnel in Korea (Lee, Park, & Lee, 2004); the Gotthard Base Tunnel in Switzerland, where the deepest point has a rock layer of 2450 m (Hagedorn & Stadelmann, 2008); tunnels at Tianshengqiao II Hydropower Station in China (Zebin, 1994); headrace tunnels at Taipinyi Hydropower Station in China (Wang & Hong, 1995);