| Case Name |
The scald accident by the asphalt. |
| Pictograph |
|
| Date |
August 10, 1999 |
| Place |
Kanagawa Prefect. Ayase City. |
| Location |
The asphalt factory. |
| Overview |
The worker closed the asphalt tank valve of the supplier while exchanging the gland packing of the switching valve( three-way cock ) of the asphalt piping. However,he was struck by 160° C asphalt gushing and he was burnt from his right wrist to the elbow, as he removed the metal hold packing without extracting the remaining pressure. |
| Incident |
The worker was burnt by overheated asphalt during pipe replacement work at the asphalt factory in Ayase City at about 11:30 on 8/10 in 1999. |
| Sequence |
8:00 The KY meeting before the work.
11:00 The pipe replacement work started.
11:30 The accident happened. |
| Cause |
1 Carring out works except for the KY meeting.
2 The victim had a lack of understanding about the danger of the exchange work.
3 The strainer ( filter ) had been placed under piping, and the valve of the pressure omission, which had been installed, was not used.
4 Though he had been taught that they should wear long sleeves work clothes while repair working, he wore the half sleeve work clothes on that day. |
| Countermeasures |
1 They must absolutely connect to the employee and carry out the safe meeting during unplanned work.
2 Making the operation standard, and reeducating the workers.
3 Installing warning signs, etc., and catching a person's attention.
4 Making the work clothes standard.
5 Building in a changing order or reverse switch of the supplying pump. |
| Knowledge Comment |
1 There are persons wearing half sleeve, while they recognize that the temperature of the asphalt is hot.
2 First of all save yourself. |
| Background |
1 The recognition : doing the dangerous work without a meeting
2 Human factors such as the optimistic recognition ( not wearing long sleeves work clothes and so on ) have increased. |
| Sequel |
We can see many cases in which during unplanned work accidents have occured. |
| Account of Concerned Parties |
The worker reflects and says that he never recognized the danger, and the cause was the work habit. |
| Reason for Adding to DB |
I wanted to inform how dangerous unplanned work and work habit are. |
| Scenario |
| Primary Scenario
|
Ignorance, Insufficient Knowledge, Poor Value Perception, Poor Safety Awareness, Poor Value Perception, Poor Safety Awareness, Non-Regular Action, Change, Failure, Fracture/Damage, Bodily Harm, Injury
|
|
| Sources |
Kunishima Committee prezentation material.
|
| Number of Injuries |
1 |
| Financial Cost |
Cheap (only a doctor's fee of the worker) |
| Field |
Civil Engineering
|
| Author |
OHSAWA, Kohichi (Japan Road Contractors Association)
KUNISHIMA, Masahiko (The University of Tokyo)
|
