1. State of the art and future prospect of maintenance and operation of road tunnel;Mashimo,2006
2. Maintenance of the undersea section of the Seikan Tunnel;Ikuma;Tunn. Undergr. Space Technol.,2005
3. Ceiling Collapse in the Interstate 90 Connector Tunnel;National Transportation Safety Board,2006
4. Nine Killed When Highway Tunnel Collapses in Japan;Fackler,2012
5. Tunnel Operations, Maintenance, Inspection and Evaluation (TOMIE) Manual;ederal Highway Administration,2010