Regarding the collapse accident in which two workers were killed or injured in the tunnel construction of the Linear Chuo Shinkansen in Gifu Prefecture in October, JR Tokai did not clearly specify the restricted area in the "work procedure manual" at the site. We announced the results of the investigation that such things led to the accident.
In October, at the tunnel construction site of the Linear Chuo Shinkansen in Nakatsugawa City, Gifu Prefecture, a rock on the ceiling collapsed on a worker, killing one person and seriously injuring one.
On the 27th, JR Central compiled and announced the results of the investigation regarding this collapse accident.
According to it, the accident occurred near the tip of the tunnel excavation, and after exploding the gunpowder, the worker approached to check for the remaining gunpowder, and the collapse occurred.
At the time of the accident, the "monitoring manager" assigned to prevent the accident did not monitor the accident, and the "work procedure manual" at the site did not clearly define the restricted area. about it.
According to the survey results, it is said that such a thing led to an accident, and in the future, we will take measures to prevent recurrence, such as clearly defining the restricted area in the "work procedure manual" and notifying the workers.
In addition, the construction work at the site, which is currently suspended, is scheduled to resume after obtaining the approval of Gifu Prefecture for the results of this survey.
JR Tokai said, "This case did not violate the national guidelines for disaster prevention in mountain tunnel construction, but we should have taken more in-depth measures to prevent accidents. We will share within the company whether accidents can be prevented and thoroughly prevent recurrence. "