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MDG 1031 Guideline for Managing Risk of an Airblast in an Underground Mine
This Guideline is intended to assist mine managers and contractors in the management of the risk of an airblast occurring in an underground mine. The scope of this Guideline includes an outline of the factors or elements that are necessary... Read more
Minerals Industry Safety Handbook Part 5 : Equipment and Machinery
This chapter of the Minerals Industry Safety Handbook covers the mine site hazards associated with machinery. Sections in this chapter cover hazards and where they may occur (confined spaces, elevated platforms etc.), hazardous plant (pressure vessels, guarding of moving parts),... Read more
Further control of the risk of explosion in a borehole into coal seam workings by use of an inertising gas
Problem In order to control the inflow of water into the underground mine, a borehole pump was to be installed. The location was in a public place - on a golf course and close to a major road. On two occassions... Read more
Process of Removing and Replacing Large Conveyor Pulleys
Problem The location of the tail and head of take up pulleys does not allow for a conventional lift during removal, as the pulley is still surrounded by the conveyor belt. The pulley must first be laterally removed from the conveyor... Read more
Fire Traps Truck Driver
What A truck driver was trapped when flames surrounded the drivers cab of a 100-tonne capacity truck. Due to the quick action of fellow drivers, he was not seriously injured. Why (a) The hydraulic hose from the tray lift cylinder had burst, spraying... Read more
Explosive Conditions: Pre-Heating On Confined Space Prior to Welding
What A number of incidents involving cutting or pre-heating prior to welding on a confined space (eg. structrual box sections) have resulted in violent explosions. Why When a propane torch is used to pre-heat a welding job on an enclosed, but not totally... Read more
Stamping out malaria for good
Malaria is a life-threatening parasitic disease that is endemic in many of the areas where AngloGold owns and operates mines. Malaria has a significant impact on both the productivity of employees and the functionality of surrounding communities. Says Dr Dave... Read more
Adopting best practice at Geita gold mine
Located some 20km west of Lake Victoria, adjacent to the town of Geita in Tanzania, is the Geita gold mine, which was established in May 1999. The mine currently has an expected life of about 14 years. Geita employs 2,200... Read more
Quorn Mill Soundproofing
Problem The operation of grinding mills generates unacceptable noise levels for plant operators Solution The complete enclosure of a Bradley mill (processing barytes) using acoustic materials to minimise the noise emitted into the surrounding production areas Benefits Reduction in noise exposure for operators working in... Read more
FRIDAY SAFETY AUDIT DAY An Evolving Culture
Problem Due to unacceptable levels of incident and injury rates at Peak Downs Mine, it was decided to take a view of the world using the Dupont style of safety contact. It was evident that although safety audits were being carried... Read more
Surface Nonmetal Mine (Sand and Gravel) Fatal Falling, Rolling, or Sliding Rock/Material Accident Dupont Pit Glacier Northwest Dupont, Pierce County,
What A 53-year-old plant general foreman with 19 years mining experience was fatally injured when a retaining wall constructed of large concrete blocks failed and one of the blocks slid onto the victim and pinned him. A hole was being excavated... Read more
Surface Nonmetal Mine (Sand and Gravel) Fatal Falling, Rolling, or Sliding Rock/Material Accident Dupont Pit Glacier Northwest Dupont, Pierce County,
What A 53-year-old plant general foreman with 19 years mining experience was fatally injured when a retaining wall constructed of large concrete blocks failed and one of the blocks slid onto the victim and pinned him. A hole was being excavated... Read more
Canopy and Base Load Distribution on a Longwall Shield
The U. S. Bureau of Mines report examines the roof and floor contact pressure provided by the interaction of a shield with the surrounding strata. Controlled forces were applied to an 800 ton two-leg shield in the Bureau mine roof... Read more
A Correlation Between Seismic Tomography, Seismic Events and Support Pressure
Coal bumps are brittle, violent failures associated with high stresses and competent host strata. To study bump mechanisms, conditions in the vicinity of a deep longwall mining face in bump-prone strata were monitored using three discrete systems. First, a microseismic... Read more
SURFACE COAL MINE Fatal Falling Materials Accident Winfield South Strip Mine TXU Mining Company Mt. Pleasant, Titus County, Texas
What A 49-year old fuel mechanic with 20 years of mining experience was fatally injured when he was struck by material which fell from the inside of a dragline bucket. Recommendations Work areas must be examined thoroughly for hazardous conditions. Miners must be... Read more
SURFACE COAL MINE Fatal Falling Materials Accident Winfield South Strip Mine TXU Mining Company Mt. Pleasant, Titus County, Texas
What A 49-year old fuel mechanic with 20 years of mining experience was fatally injured when he was struck by material which fell from the inside of a dragline bucket. Why The cause of the accident was the failure to sufficiently clean and... Read more
Investigation of the Jacking Force Capability of Tunnel Liners
Steel liner plates, which are bolted together to form a shell, are commonly used to provide temporary protective linings in the tunneling industry to ensure the stability of the tunnel and safety of the workers until more permanent ground reinforcement... Read more
Case Study 3. Losses in transporting mercury: Minera Yanacocha
A chlorine cylinder became dislodged and fell off a truck on a highway. As the cylinder was too heavy for the driver to recover on his own he continued. The following day it was discovered that an unknown... Read more
Ore Pass Box Fronts: Safe Design, Construction and Operation
There may be very high pressures applied to box fronts, and when ore passes hang up there are additional hazards associated with clearing them. The history of accidents related to the operation of ore passes and box fronts confirms the... Read more
METHANE EXPLOSION BEATRIX GOLD MINE R.S.A
Following the recent flammable gas explosion at Beatrix Gold Mine, the second in a year, it is very important that we reconsider the general precautions that are associated with flammable gas control in our mines. At this stage the cause... Read more
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