Case Ditails

Case Name A worker fell down from a scaffold while he was handing a scaffold board to another worker.
Pictograph
Location The bridge construction site
Overview A worker was subdividing a curb form. When he was handing a scaffold board (made of plywood, 4000*200*28 in size, 20kgf in weight) to another worker on the bridge, he was off balance and fell down from the scaffold board to 5.5 meters below. The victim was a shuttering fixer, 62 years old. He had been engaged in his work for 15 years.
Incident While the worker was subdividing a form, he fell down from the scaffold and died.
Cause * There was no handrail to prevent falls and tumbles.
* The safety belt was not used.
* The worker didn't obey the rules decided in the arrangement before the work.
* There were not enough activities and training sessions for safety and 'KY activities'.
Countermeasures * When working in a high place, the worker must use equipments for safety, such as handrails, main ropes, safety belts and, protection nets under the scaffold.
* It is necessary to line up the work platform for safety and to care the open space completely.
* It is required for the workers to have a staff meeting before the work, to make and confirm processes of work, and to instruct the workers completely.
* There must be full education and training for safety.
Knowledge Comment * The workers must use main ropes and safety belts in high places.
Reason for Adding to DB The accident involving a fall is the most frequent of all the accidents of the construction industry. This case is the typical one of the accidents involving a fall.
Scenario
Primary Scenario Carelessness, Insufficient Precaution, Ignorance of Procedure, Disregard of Procedure, Poor Value Perception, Poor Safety Awareness, Regular Movement, Dangerous Movement, Regular Movement, Careless Movement, Bodily Harm, Harm to Physical Well-being, Bodily Harm, Death
Sources The Prestressed Concrete Construction Soc.
Number of Deaths 1
Physical Damage Uncertainty
Financial Cost Uncertainty
Economic Loss Uncertainty
Field Civil Engineering
Author HOJO, Tetsuo (Institute of Technologists)