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no.They also bolt those down don't they with wire ropes and impact bolts?
Here's what the investigation said was the cause:no.
they need to use the counterweights or a bigger crane.
you meant on the equipment its self... i mis read your post then. sounded like to me,you were talking about bolting the machine to the ground.Here's what the investigation said was the cause:
At the time of the accident, the fastening bolts of
the bucket-type work platform attached to the end of the boom
head of the mobile crane were failed and the bucket-type work
platform fell down to 6 m resulting in two deaths while two
workers were carrying out the work of attaching some steel
parts to the ceiling in the tunnel on the bucket. The process of
the accident and the situation of the accident site were
identified through the investigation of the industrial accident
site and the possibilities of failure of the fastening bolts were
checked by using the finite element analysis of the bucket-
type work platform and the bolts. In the accident, it was
judged that the two upper bolts loosely fastened to the nuts
were failed first, then, the two lower bolts were failed and the
bucket-type work platform fell to the ground through the
investigation of the industrial accident and the finite element
analysis which confirmed that the bolts would not have failed
if the bolts had properly installed between the end of the boom
head and the bucket-type work platform but only the two
lower bolts could not withstand the loads applied at the time
of the accident also.
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