In the past 15 years, there has been a major safety improvement in the Australian mining industry. Part of this change can be attributed to the development and application of risk assessment methods. These systematic, team-based techniques identify, assess and control unacceptable risks to people, assets, the environment and production. The outcomes have improved mine management systems. This paper discusses the risk assessment approach applied to equipment design and mining operations, as well as the specific risk assessment methodology. The paper also discusses the reactive side of risk management, incident and accident investigation. Systematic analytical methods have also been adopted by regulatory authorities and mining companies to investigate major losses.
Fifteen multi-national mining companies are currently members of the Earth Moving Equipment Safety Round Table (EMESRT). Formed in 2006, EMESRT engages with mining equipment manufacturers with the aim of accelerating improvements in the safe design of mining equipment. An initial stage in this process was to communicate industry understanding of the risks in the form of -design philosophies‖ that describe potential unwanted events in eight hazard categories. A technique for analysing risks associated with operation and maintenance tasks, the Operability and Maintainability Analysis Technique (OMAT), was subsequently developed and trialed. The next step is the EMESRT Design Evaluation for Equipment Procurement (EDEEP) process. The aims of requesting manufacturers to follow this process are to provide equipment purchasers with a common way of assessing how well the issues in the EMESRT Design Philosophies are addressed in the equipment design; and to provide manufacturers with additional information for use during equipment design. The process involves identifying priority tasks based on frequency and severity of the consequences of potential unwanted events identified in the EMESRT Design Philosophies; undertaking a task-based risk assessment of priority tasks in conjunction with site-based personnel; evaluating the effectiveness of control measures; and providing information about safe design features in a standardised format.
Risk assessment is a familiar tool in the minerals industry. Originally introduced to explore areas of safety and health in the workplace, the tool is now increasingly used by the industry in other areas such as environmental management. As the industry grapples with the concept of sustainable development, risk assessment represents a potentially useful methodology to engage operations with the broader range of issues involved. However, a limitation of the traditional risk mitigation approach is that it focuses on avoiding negative outcomes, whereas a sustainability focus requires consideration of positive impacts as well. This paper describes an initial attempt to use modified risk assessment methodologies to engage with three Australian coal mining operations on the subject of sustainable development. It describes the rationale for the project, the outcomes from the trials and the overall lessons from the exercise.
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