Part 2. Cases Involving Construction Vehicles (tunnel construction site)

What kind of accident is about to happen?

A wire is attached to the hook of a drag shovel with a crane attachment, and is being used to move a steel arch support at a tunnel construction site. Can you predict what's about to happen?

Look what happened!

The shovel operator stopped the shovel suddenly since a worker walked under the overhead load. As a result, the wire rope came off of the hook and the support beam fell on the worker.

Tips for preventing similar accidents

1. Never let a worker walk under overhead loads.
2. Be sure to inspect the safety catch for the hook before starting work.
3. Assign someone to serve as a signaler and perform work in accordance with that person's instructions.
4. Know the proper methods of hanging support beams, and the order in which beams are to be installed.

Soure By The Japan International Center for Occupational Safety and Health (JICOSH)

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