Assessment of whole-body vibration exposures among dumper operators in iron ore mines: a comparative investigation of haul truck activity
研究了印度铁矿自卸车操作员在作业各阶段的全身振动暴露水平，发现59%的操作员超过下限，90.8%的A(8)和VDV(8)值超标，并分析了速度、路况等因素的影响。
This study aimed to fill the research gap on whole-body vibration (WBV) exposure of dumper operators in India, conducting a comprehensive investigation into specific phases of dumper operations. Results indicated that 59% of operators exceeded lower limits, with 90.8% exposed to vibration levels surpassing the lower limit for A(8) and VDV(8) values. Frequency analysis identified peaks aligning with crucial body parts, corroborating epidemiological findings. Statistical analysis (ANOVA) demonstrated significant differences in WBV exposure across activity groups (p < 0.001), dumper speeds (p < 0.001), and haul road conditions (p < 0.001). Optimising driver speed, improving haul road surfaces, and regular vehicle maintenance are some recommendations to reduce WBV exposure among dumper operators.