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28 records found.
Drill Rig Feed Table Cracks

Drill rig maintenance personnel found significant cracks in two areas on the feed table of a drill rig. The cracks were around the feed table mounting boss and through the main tube in the lower feed extension mounting point. These... Read more


Light Vehicle Rim Cracking

While towing a trailer with a four wheel drive vehicle, the driver noticed a change to the steering. A check revealed one of the wheel rims had split. An investigation at the mine then discovered many light vehicle rims were... Read more


Cracks In Steering Ball Joints On Rear Dump Truck

Ball joints on both steering rams of a rear dump truck were found to be broken off after the truck ran into a windrow and tipped over. ... Read more


Alloy rim cracking and failure

A light vehicle travelling at low speed through a mine industrial area struck a pot hole and the wheel rim separated from the hub section of the front offside tyre. Rim failure can cause a driver to lose control, leading... Read more


Mines Safety Significant Incident Report No. 31

A potentially hazardous situation arose when extensive cracking developed in the welded joints of a hot oil boiler operating in a Gold Mine Process Plant. The cracks were found in welds in the tube sheet to shell, tube ends to tube... Read more


Aerosol propellant ignition

A boilermaker sustained burns to the face and hands when an arc from a MIG welder caused the rupture and ignition of propellant from a can of hydrocarbon-based aerosol crack-testing compound. (Crack testing is a non-destructive testing technique used for... Read more


Blast Hole Drill Carousel Stem Lock Failure

Operator was in the process of withdrawing the drill string from a completed hole and had retracted one stem. He had the second stem in the carousel stem lock and commenced rotating the drill head to undo the head from... Read more


Blast Control ; Flyrock Incident

What During a quarry blast under the control of a contractor, flyrock was projected more than 500 metres onto the Pacific Highway. A rock of approximately 100mm diameter was also projected onto a nearby property where it caused damage to a... Read more


Silo collapses from stressed structural weld

A silo containing 300,000 litres of milk collapsed at a dairy co-op factory recently. The collapsed occurred after the dome bottom tore away, causing a large hole in the silo. The contents then rapidly discharged, creating a negative pressure which sucked... Read more


SB 43 Flameproof Enclosures - Damage To Windows

An electrical switchgear enclosure from an underground coal mine had been overhauled in an off-site workshop.  Such enclosures use an explosion protection technique known as "flameproof" to control the risk of ignition of methane in the mine atmosphere.  As often... Read more


Mines Safety Significant Incident Report No. 116

Whilst the driver of a Cat 633D elevating scraper was taking a skim cut to remove topsoil from a tailings dam site, a piece of mulga wood approximately 150mm x 100mm was projected through the rear window of the cabin.... Read more


Transport incident involving the failure of a plastic intermediate bulk container (IBC) containing a mixture of hydrofluoric and sulphuric acids

Incident On 13 August 2008, a plastic intermediate bulk container (IBC) containing a mixture of hydrofluoric and sulphuric acids (4% and 20%, respectively) cracked as it was being transported by truck. The container apparently failed as the truck travelled over a... Read more


Safety fuse yellow waterproof (WASAG CHEMIE Manufacture)

What An incident of significant potential occurred at an underground gold mine in North Queensland on 6 May 2000, involving the use of safety fuse manufactured by Wasag Chemie. ; A 1.6 metre length of safety fuse, had been capped and... Read more


ROM Bridge ; Changing with Demand

Problem Peak Downs Mine realised through the current expansion phases, that there were major opportunities to improve one of the primary bottlenecks by reducing down time caused by delays to crushed coal feed to the CPP. ; The issue was three... Read more


Working Near the Edge Beware of Soft Areas: Stay Perpendicular

When operating equipment near the edge of a slope, keep the following points in mind: Before setting up, check the top and face of the slope for indications - such as rutting, cracking, sliding, or slumping - that the material... Read more


Driller/Blaster Communications

Since 1978, 281 incidents have occurred where individuals were struck by material being blasted at mine sites. In order for a blaster to safely determine the amount of explosive to be loaded in boreholes, the condition of the material being... Read more


Driller's Fall Protection

Tomas Moreno, a drill operator at Jobe Concrete McKelligan Canyon Mine, recommends the following drilling procedure. ; First, lay out the drill pattern. Then, drill the second row back from the face of the high wall. The vibration of... Read more


Electrical Extension Cords

Electrical extension cords can be a source of fires and electrical shock when misused at the mine or at home Use extension cords only when necessary and only on a temporary basis. ; Replace cracked or worn extension cords. ;... Read more


Fatal Fall of Rib Accident Wabash Mine Wabash Mine Holding Company Keensburg, Wabash County, Illinois I. D. No. 11-00877

What A 56-year old roof bolting machine operator with 23- years of mining experience was fatally injured in a rib fall accident. During drilling operations, the victim detected a crack in the left rib.. As he walked along the left side... Read more


Fatal Fall of Rib Accident Wabash Mine Wabash Mine Holding Company Keensburg, Wabash County, Illinois I. D. No. 11-00877

What A 56-year old roof bolting machine operator with 23- years of mining experience was fatally injured in a rib fall accident. During drilling operations, the victim detected a crack in the left rib.. As he walked along the left side... Read more



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