Case Ditails

Case Name A construction worker was run over by the tire roller.
Pictograph
Date November 12, 2002
Place Motomiya town, Adachi District, Fukushima Prefecture
Location The natinal road No.4 lane's widening and pavement construction field
Overview During pavement onstruction, the small vibratory roller operator's legs were run over by the tire roller reversing behind him, and he injured in the right femoral region an leg bone area.
Incident On November 12th, 2002, 15:28. the small vibratory roller operator was run over by the tire roller during the pavement construction of the national road No.4 lane widening construction, and he injured both legs.
Sequence * They were constructing the inter mediate layer's overlay in the current road, after altering the traffic to the widened ascent lane, which had been constructed in the previous day.
* Since they moved to the installation work and the workplace became narrow, the victim got off the road roller (Mc Adam roller), and he started compacting using the small vibratory roller.
* Nevertheless the victim noticed the tire roller was approaching him from behind and switched to advance, but it was too late and he got injured.
Cause * The tire roller operator and victim carried out rolling compaction work without rear confirmation.
* There was no induction man when the accident occurred, even though the tire roller and the victim were working so closely
Countermeasures * Heavy machine work plans have to be made by every working group and be confirmed by every worker.
* The proximity warning system should be installed in tire roller or road roller.
* The full-time induction man is required, where both the heavy machines and men work.
Knowledge Comment * We have to plan so that the workers do not work back to back.
* Do not have overconfidence that you are always recognized.
Background * The extension of the construction was so short that the workspace of the rolling compaction work was as small as only a tire roller and small vibratory roller could work together.
* The induction man had been nominated, but he was doing pavement work instead of doing induction.
* When the accident occurred, employees of the main ontractor, safety and health controller, etc. did not confirm the condition of the induction.
Sequel * The victim's recovery after the surgery was not fine, and, as a resul, the victim had to have his leg cut off from the left ankle.
* The operator, site agent, foreman were under investigation for the negligence in the conduct of business.
* The main contractor and the first tier sub contractor were prohibited to join in private tender by the adiministrative disposition from the orderer, and received a severe evaluation in such as construction evaluation point, etc.
Reason for Adding to DB Not to repeat the same disaster
Scenario
Primary Scenario Poor Concept, Poor Strategy or Concept, Carelessness, Insufficient Precaution, Regular Movement, Careless Movement, Bodily Harm, Injury
Number of Deaths 0
Number of Injuries 1
Physical Damage Nothing
Field Civil Engineering
Author WATANABE, Kuniomi (Japan Road Contractors Association)