| Case Name |
Crashing disaster on a construction site - the accident which originated from the inappropriate use of safety belt. |
| Pictograph |
|
| Date |
August 2003 |
| Place |
Kanagawa Prefecture |
| Location |
A construction site of a 12-story condominium. |
| Overview |
On a construction site of 12-story condominium, when bolting work on the steel beam of the sixth floor was done during steel erection of the steel column, the ring of the safety belt (spring hook) which the worker used came off, and the worker fell about 17 meters. He was taken to the hospital, and he soon died. While the low consciousness of safety of the worker in the construction site was recognized, it became an opportunity to improve the way of safety education in an interested concern. |
| Incident |
When bolting work on the steel beam of the sixth floor was done during steel erection of the steel column, the ring of the safety belt (spring hook) which the worker used came off, and the worker fell to the ground, and he soon died. |
| Sequence |
From the morning, the work proceeded as planned, and workers hung the safety belt to the main rope and the gangway for going up and down on the steel beam of the sixth floor, and did a temporary tightening of the steel column of 3 knot part and steel column of 2 knot part with attached board and volt, in the condition that the steel beam was lifted by transportable crane. A worker A stood on the steel beam of the sixth floor, hung his safety belt to the stretched main rope, and carried out the temporary tightening work. Meanwhile, because there was no appropriate scaffold, a worker B passed his safety rope through the gangway of the steel column, put his weight on the rope of his safety belt in the condition of U-hanging, and carried out the work. Then, the worker B gave a shout, and he fell about 17 meters. He was taken to the hospital, and died of the blood loss by the thorax bruise after 2 hours. |
| Cause |
The direct cause of this case was that the worker B did not use the safety belt appropriately. As a different viewpoint, this case was caused by the management element of the management side such as the overly optimistic work planning of the original contractor and of the careless safety management in the site. |
| Response |
From Labor Standards Inspection Office in Kanagawa Prefect. where the accident arose, and Safety Division in Kanagawa Labor Bureau, leaflets which appealed for appropriate management and use of the safety belt were distributed to the builders. And, major constructors carried out general inspections of the field, responding to the improper use of spring hooks. |
| Countermeasures |
Including the movement like "national campaign for proper use of the safety belt ", the trial which improves the interest of the parties concerned by taking up the problem on the safety belt featuring it in magazines, etc. has been made. But in the present stage, there are few concretely visible things as a countermeasure under the present conditions. |
| Knowledge Comment |
It is the necessary that safety is ensured in the stage of work planning, that education and management on the use of the safety belt are carried out periodically in the field, and that workers recognize the importance of ensuring safety. |
| Background |
Until now, the safety belt was a thing like a passport of the field entrance, and workers had only to wrap the safety belt around their waist. It can be said that the low of the safety consciousness in work places has induced the unsafe action in the field. |
| Reason for Adding to DB |
It was a case related only to people of the field, and the purpose is that the existence of the accident is known to people, since there is no opportunity which widely affects the public opinion generally. |
| Scenario |
| Primary Scenario
|
Ignorance, Insufficient Knowledge, Organizational Problems, Poor Staff, Organizational Problems, Poor Management, Usage, Operation/Use, Malicious Act, Rule Violation, Bodily Harm, Harm to Physical Well-being, Bodily Harm, Death, Damage to Society, Change in Perception, Damage to Society, Change in Perception
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|
| Sources |
Anzen staff 2004.2.15.
|
| Number of Deaths |
1 |
| Number of Injuries |
0 |
| Consequences |
Responding to frequent accidents, the party concerned is doing the enlightenment activity. |
| Multimedia Files |
Fig2.Accident State Figure
|
| Field |
Civil Engineering
|
| Author |
KUNISHIMA, Masahiko (The University of Tokyo)
ISHIHARA, Yukihiro (The University of Tokyo)
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