Pit & Quarry, January 2018
Numerous factors may contribute to STFs during egress including gravity accelerating the body downward and decreased ability to see the rungs beneath ones feet when facing the ladder during descent This poses a challenge to judging distance to the subsequent rung and the ground identifying contaminants on the ladder rung or identifying ground conditions such as rough uneven or slippery conditions that may lead to a fall The slips and step on in injuries found in our analysis indicate unsafe ladder and ground conditions may be present at many mines RECOMMENDATIONS Based on our analysis ingress and egress safety on front end loaders could be improved through design maintenance and housekeeping of ladders and parking areas We offer six key recommendations based on our research 1 Ensure consistent rung heights from the ground level through the ladder and to the cab Most ladder standards including those for mobile and fixed machines recommend consistent spacing between rungs ISO14122 4 The majority of injuries from slips trips and falls occurred when workers were getting off of equipment 2014 4411 OSHA CFR 29 191023 b 1 ANSI ASC A143e 2008 511 ASAE S4121 MAR1990 R2014 321 However inconsistent rung spacing is common on mobile mining equipment especially between the ground and the first rung between the rungs with flexible rails and between the flexible and rigid railed rungs These inconsistent rung heights may play a role in the high prevalence of slips missteps and loss of footing injuries when getting off mobile mining equipment Ensuring consistent rung heights from the ground level through the ladder and to the cab may prevent injuries from occurring on ladders 2 Provide designated parking areas free of hazardous ground conditions Unsafe ground conditions can be ISEE Conference 2018 Grand Hyatt San Antonio Learn Connect Exchange Leading the explosives industry in education training and networking Dont Miss These Premier Events Astronaut Mullanes Talk on Safety Emerging Professionals Social at The Alamo New Grand Finale Gala International Society of Explosives Engineers www isee org Riverwalk San Antonio Texas pitandquarry com January 2018 PIT QUARRY 69
You must have JavaScript enabled to view digital editions.
