Driving an unloaded bucket resulted in significantly higher levels of vibration exposure than with a loaded bucket.

Although it is not possible to conclude that high levels of WBV exposure were the only cause of the reported neck and back discomfort, vibration levels experienced by the underground mining load-haul-dump (LHD) operators indicated health risks were likely to develop, with a higher probability of injury to the back. Analysis of all operators’ injury profiles and their vibration profiles will be important in future studies in order to determine whether these variables are related.


The mining industry will need to consider a number of different intervention strategies to have an impact on injury reduction. The evaluation and implementation of control strategies addressing road maintenance, operating speed, vehicle maintenance, and operator seat design will be required to reduce LHD operator’s vibration exposure levels below values associated with elevated injury risk.


Influence of vehicle size, haulage capacity and ride control on vibration exposure and predicted health risks for LHD vehicle operators. Tammy Eger; Journal of low frequency noise, vibration and active control, Vol. 30 No. 1 2011.





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