Long duration measurements of whole-body vibration exposures associated with surface coal mining equipment compared to previous short-duration measurements

ABSTRACT

Previous measurements of whole-body vibration associated with earth-moving equipment at surface coal mines have highlighted the significance of the hazard. Considerable variability in measurement amplitudes, even within the same equipment type operated at the same site, has been noted. However, the measurements have previously been undertaken for relatively short durations. Fifty-nine measurements were collected from a range of earth-moving equipment in operation at a surface coal mine. Measurement durations ranged from 100–460 min (median = 340 min). The results indicate that the measurements previously observed are not an artifact of the relatively short durations and confirm that operators of dozers and off-road haul trucks, in particular, are frequently exposed to vertical whole-body vibration levels which lie within, or above, the Health Guidance Caution Zone defined by ISO2631.1. Further investigations are justified to identify opportunities for reducing operators' exposure to high amplitude vibrations.

KEYWORDS:

• Earth-moving equipment
• mining
• whole-body vibration

Funding

The research was supported by the Australian Coal Association Research Program (C23022). The project sponsor was not involved in preparing, writing, reviewing or approving the submitted manuscript.