STUDY NOTES Flashcards
The 10 Hurdles
Consultation Hazard Identification Risk Assessment Risk Management Information Training and Instruction Supervision Monitoring Review Revise
Blast Fume
?
Nertney Wheel
Controlled Work Environment Fit For Purpose Equipment SafeWork Procedures Competent People Safe Productivity
ANTS 9 Associated Non-technical Skills
Associated non-technical skills are the cognitive, social and resource skills that complement technical skills and contribute to safe and efficient task performance. This initiative is targeting the key non technical skills of -
Communication Situation Awareness Decision Making Leadership Teamwork
Vibration
The speed at which the ground moves, shockwave that travels through the ground when the blast is fired. Limits for the Hunter Valley are . Can be stopped by having a crack/pre-split to stop it
as it can not jump. Vibration = Mass instantaneous charge divided by ?. A blast with no free face has a large vibration potential.
Overpressure
MIC divided by distance, Expanding air Shockwave through the air, manage overpressure by ensuring sufficient stemming, sufficient stemming material, inversion, low cloud, wind, sufficient burden, blast design, check geology,
Mass Instantaneous Charge
How many holes go off together.
Why is burden so important?
Contains the blast, sets up for the shockwave to travel back through material for fragmentation
Bengalla Top Hazards
Heavy & Light vehicle Interaction High Pressure Release of Energy Vehicle Over Edge Geotechnical failure Unplanned detonation of explosive Working at heights Dropped/falling objects Confined spaces High voltage electrical Unplanned pressurised release Entanglement of persons in rotating equipment Dragline/ mobile equipment interactions Low voltage electrical Falling equipment from jacks and stands
ORDER 34
Each coal operation of NSW must submit to coal services and apply to coal services for approval of a training scheme for the health and safety management system of the coal operation. Must include information on resources, responsibilities and accountabilities, training and competence, consultation, communication, documentation and document control, measurement and evaluation, records and record management, audit, management review. The scheme must include provisions for the training and assessment of new & old employees, employees engaged in work of a different nature to which they have previously been engaged, assessment and maintenance of competencies of persons to continue allocated tasks, assessment of competency of contractors, compliance auditing of the training scheme by an officer of coal services.
Contributing factors to 797 Rav Nth Incident
Interaction between light and heavy vehicles.
Some aspects of intersection design and signage did not meet Rav mines guidelines.
Windrow height may have restricted line of sight vision from LV.
Background lighting near intersection had potential to disorientate or confuse on the approach making it hard to detect a moving vehicle.
Presence of ponding water at intersection led to reflection of secondary lighting and lv lights off water.
Truck bumper lights obscured and recessed right side low beam light limited visibility of the truck.
Due to height of the truck and close proximity to the intersection the lack of light from the bumper would have made it difficult to see the truck.
Absence of other illuminating devices on the front, top and side of the truck would have made it difficult to detect while driving lv.
Truck blind spot could not see land cruiser and take evasive action.
No collision avoidance or proximity systems installed.
Over reliance on administrative controls to manage heavy and light vehicle interactions.
Spontaneous combustion
Oxidisation of coal is a normal process and this produces heat and certain gases. Spontaneous combustion is the process by which certain materials can ignite as a result of internal heat which rises spontaneously due to reactions liberating heat faster than it can be lost to the environment.
Principal mining hazards management plans to be considered are?
Ground or strata failure Inundation or inrush of any substance Mine shafts or winding systems Roads or other vehicle operating areas Air quality or dust or other airborne contaminants Fire or explosion Gas outbursts Spontaneous combustion Subsidence Any other principal mining hazard
Principal control plans are?
Health control plan Mechanical engineering control plan Electrical engineering control plan Explosives control plan Emergency control plan
High risk activities are?
Schedule 3 2, Electrical work on energised electrical equipment Part 4 25, high wall mining entry of persons 27 emplacement areas 28, highwall mining 29 barrier mining
Sampling airborne dust at coal mines general requirements?
Schedule 6 part 1
Taken in accordance with license under part 9 whsmr
Taken over a period of at least 5 hours and if possible from start to finish of shift
Taken as close as reasonably practicable to where persons work
Taken in respect of particular work from persons who carry out the same work for whole shift or sampling period
Analysed as soon as practicable after samples taken and if taken incorrectly sampled again
Respirable dust samples taken in accordance with as 2985-2009
Inhalable dust samples taken in accordance with as 3640-2009
Analysis of respirable Quartz in airborne dust is required in respect of one sample taken in an area at a particular time.
7 other areas
Samples taken where dust is or may be present including from the breathing zones of 5 persons
Where extraction is occurring the persons referred to in subclause 1 are to include-at least 1 person working as a driller, shot firer, stemmed & at least 1 person who is operating mobile plant
Samples are to be taken for respirable & inhalable dust at least every 12 months.
Matters to be included in emergency plan for a mine?
Schedule 7 1 site and hazard detail 2 command structure and site personnel 3 notifications 4 resources and equipment 5 procedures
