Pollard Jonisha, Kosmoski Carin, Porter William L, Kocher Lydia, Whitson Ashley, Nasarwanji Mahiyar
Pittsburgh Mining Research Division National Institute for Occupational Safety and Health, 626 Cochrans Mill Road, Pittsburgh, PA, 15236, USA.
Int J Ind Ergon. 2019 Jul;72:272-280. doi: 10.1016/j.ergon.2019.06.003. Epub 2019 Jul 14.
A large proportion of non-fatal slips, trips, and falls (STFs) at surface mining facilities are associated with mobile equipment. Ingress and egress from mobile equipment can pose a fall risk to mobile equipment operators. The objective of this study was to determine mobile equipment operators' views of STF risks from mobile equipment, and to ascertain what factors, tasks, and conditions they perceive as contributing to these risks. A thematic analysis of 23 individual interviews and 2 group interviews was conducted, with 10 overarching themes identified from the transcripts. Mobile equipment operators indicated that being unable to see their feet or the ladder rungs during descent and the presence of contaminants on the ladders caused by normal operation make egress more dangerous than ingress. The flexible rails and high heights of the lower rungs identified over 40 years ago as issues for mobile equipment operators still pose a perceived STF risk. Further, the requirements of routine maintenance tasks such as oil and filter changes, greasing, and cleaning windows pose fall risks due to inadequate access and the need to carry supplies up and down equipment ladders. In addition to the mobile equipment, hazardous ground conditions and insufficient lighting were found to be key issues around the mobile equipment and in parking areas. The findings of this work indicate that mobile equipment operators feel at risk for STFs due to the design and condition of their equipment, and would like to see ladders replaced with safer stairways as the primary ingress/egress system.
露天采矿设施中很大一部分非致命的滑倒、绊倒和跌倒(STF)事故与移动设备有关。上下移动设备可能会给移动设备操作员带来跌倒风险。本研究的目的是确定移动设备操作员对移动设备STF风险的看法,并确定他们认为导致这些风险的因素、任务和条件。对23次个人访谈和2次小组访谈进行了主题分析,从访谈记录中确定了10个总体主题。移动设备操作员表示,在下来时看不到自己的脚或梯子的横档,以及正常操作导致梯子上有污染物,使得下车比上车更危险。40多年前就被确定为移动设备操作员问题的柔性导轨和较低横档的高度,仍然被认为存在STF风险。此外,诸如更换机油和滤清器、润滑以及清洁窗户等日常维护任务的要求,由于通道不足以及需要在设备梯子上上下搬运物资,也带来了跌倒风险。除了移动设备外,危险的地面条件和照明不足被发现是移动设备周围和停车区域的关键问题。这项工作的结果表明,移动设备操作员因其设备的设计和状况而感到有STF风险,并且希望看到用更安全的楼梯取代梯子作为主要的进出系统。