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Case No.17
Logs falling from a barker table during work
using an overhead traveling crane to hoist
logs into position for processing
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[Circumstances of Incident]
The accident occurred on the drainage deck
adjacent to a lumberyard at a factory that
manufactures and sells construction materials.
The work on the day of the accident involved
using a radio-controlled overhead traveling
crane with a lifting load of 10 tons to hoist
sling-loads containing six logs each from
the drainage deck to the 3.3-m high table
of a drum barker located adjacent to the
drainage deck. The victim was carrying out
this work by himself.
When the victim was carrying out slinging
work on the drainage deck, one of the six
logs in the fourth load that had been piled
atop the barker table fell back to the drainage
deck, striking the victim in the back. The
victim died the next day due to bleeding
in the abdominal cavity.
While stopper wedges had been installed in
four places at the edge of drum barker table
to prevent logs from falling back to the
drainage deck, these wedges were only 43
cm thick-raising the danger that raw logs
could roll off the table when they were piled
two layers high.
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[Causes]
The following can be cited as the causes
of this accident.
1 While the table is big enough to hold three
sling-loads (a total of 18 logs) at a time
without piling if they are of uniform shape,
only two sling-loads (12 logs) could be reasonably
accommodated without stacking if the logs
had any curves or bends. Despite this fact,
it is assumed that the victim had placed
three sling-loads of logs on the table, and
that one of the logs rolled over the stopper
wedges and fell.
2 It is also assumed that because the victim
was carrying out the slinging work alone
with his back to the table, he did not notice
the falling of the log.
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[Type of business] Lumber industry
[Type of accident]Crushed
[Number of victims] One fatality |
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