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MSHA Fatalities Involving Drilling Operations

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It is believed that the employee's clothing got caught on the moving drill stem. ... The victim was not wearing a safety belt and line. ... – PowerPoint PPT presentation

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Title: MSHA Fatalities Involving Drilling Operations


1
MSHA Fatalities Involving Drilling Operations
2
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On February 17, 1995, a driller with six months
    of mining experience was killed at a limestone
    quarry. There were no witnesses to the accident.
    The employee was operating a track drill. He was
    found dead wrapped around the drill steel. It is
    believed that the employee's clothing got caught
    on the moving drill stem.
  • On February 14, 1996, a mechanic (contractor
    employee)  with 24 years of mining experience was
    killed at a sand and gravel operation. The
    employee was preparing to repair the hydraulic
    hose on a hydraulic track drill when he was run
    over by the drill. The drill operator was
    tramming the drill backwards to an area where the
    hose could be repaired. When the drill operator
    turned the drill 90 degrees, he noticed the
    mechanic under the crawler track. The victim died
    from crushing injuries.

3
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On February 26, 1997, a driller (contractor
    employee) with 8 years of mining experience was
    killed at an iron ore pit. The employee was
    drilling the surface above an abandoned
    underground mine shaft when the ground caved in
    under the drill head. The employee fell 20-feet
    down a mine raise opened up by the drilling and
    was buried under material at the bottom.
  • On April 1, 1997, a driller with nearly 10 years
    of mining experience was killed at a limestone
    mine. The employee was drilling blast holes using
    an air-track drill in preparation of removing an
    additional 25 feet of the floor from the existing
    drift when a ground fall occurred from a pillar,
    crushing him.

4
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On September 3, 1997, a contractor driller with 9
    years of mining experience was killed at a
    limestone quarry. The victim had been drilling a
    blast hole about 4 feet from the edge of a
    92-foot highwall. He was adding drill steel when
    the hammer feed chain broke causing the victim to
    fall over the edge. The victim was not wearing a
    safety belt and line.
  • On February 3, 1997, a driller with 5 years of
    mining experience was killed at a zinc operation.
    The employee was operating a single boom jumbo
    drill, drilling blast holes in a brow. The victim
    was crushed when a massive roof fall occurred
    which collapsed the canopy.

5
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On Monday, October 5, 1998, the operator of a
    highwall drill, while at the operating controls,
    was fatally injured when a large piece of rock
    fell from the highwall onto the cab of his drill.
    The rock fell 20 feet to a safety bench, split,
    then fell an additional 55 feet onto the top of
    the cab. The portion of rock that struck the
    highwall drill completely destroyed the
    operator's cab.

6
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On Thursday, January 7, 1999, a highwall drill
    operator, while inside the operator's cab, was
    fatally injured when a portion of the highwall
    collapsed. Large pieces of sandstone fell from
    the highwall causing severe damage to the drill
    and the operator's compartment. The portion of
    the highwall which collapsed measured
    approximately 50 feet in height by 60 feet in
    width.




7
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On January 27, 2000, a 49 year-old driller with
    11-½ years mining experience was fatally injured
    at a crushed stone operation. The victim had
    positioned his truck mounted drill parallel to
    the edge of the high wall in preparation for
    drilling. The stabilizers were lowered and as the
    drill mast was being raised, one of the
    stabilizers sank into the ground causing the
    drill to overturn. The drill fell over the
    highwall edge, crushing the operator's cab.

8
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On April 22, 2002, a 22 year-old drill operator
    with one year mining experience was fatally
    injured at a dimension stone quarry. The victim
    was drilling in the quarry when his clothing
    became entangled in the rotating drill steel.

9
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On June 12, 2002, a 35-year-old maintenance
    worker with 7 years mining experience was fatally
    injured at an alumina operation. The victim was
    drilling out scale that had accumulated inside
    heater tank pipes. The drill motor, detached from
    the gear box, fell from the drill mast and struck
    the victim.

10
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On September 10, 2002, a 58 year-old drill
    operator with 15 years drilling experience was
    fatally injured at a crushed stone operation. The
    victim had positioned the truck-mounted chassis
    drill, set the jacks and raised the truck chassis
    off the ground. He was raising the drill mast
    into position when a previously damaged jack foot
    connection may have allowed the "ball end" to
    suddenly drop into the receiving socket. This
    caused the drill to become unstable, tip over and
    crush the operator inside the operator's cab.

11
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On July 19, 2004, a 41 year-old contractor
    driller trainee with 20 years mining experience
    was fatally injured at a surface granite
    operation. The victim fell from the top of a
    highwall as he was re-threading a drill steel in
    a vertical drill.

12
MSHA FatalityINVOLVING DRILLING OPERATIONS
  • On March 24, 2004, a 41-year-old, driller with 22
    years mining experience was fatally injured at a
    crushed stone mine. The victim was using a track
    mounted drill to drill blast holes. Apparently,
    he attempted to manually thread a new drill
    steel, with the mast vertical and the drill head
    rotating, when the rotating steel entangled him.

13
MSHAs Best Practices
  • Highwalls should be examined often, especially
    during periods of changing weather conditions.
  • The ground control plan at every mine should be
    followed
  • All miners should be trained to recognize
    hazardous highwall conditions.
  • Drill operators should not drill from positions
    that increase exposure to highwall hazards.
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