Interstate 90 Connector Tunnel ceiling collapse

摘要

Sean Brady highlights potential similarities between the recent Sasago road tunnel collapse in Japan and the catastrophic failure of part of Boston's 1-90 Connector Tunnel in 2006. On 2 December 2012, concrete ceiling panels fell from the roof of a 4.7km-long road tunnel west of Tokyo, Japan. The ceiling panels were suspended above the tunnel roadway and the falling panels crushed three vehicles and resulted in nine fatalities. The tunnel reopened in late December, and while a number of publications speculate that the cause of the failure may be associated with a failed support bracket or concrete anchor, the findings of an official investigation are yet to be released at the time of writing.