Coal

Fatality #9 for Coal Mining 2012

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On May 24, 2012, a 43-year-old shaft worker with 39 weeks of mining experience died from injuries he received on May 15, 2012. The victim was helping pour concrete in a 30-foot diameter shaft that was under construction. The victim and his coworkers were using a hose to direct concrete into forms that lined the shaft wall. The hose was overloaded as concrete came out of the hopper too fast, which caused the hose to surge. This sudden movement of the hose knocked the victim and his coworkers off their feet, resulting in a fracture to the left leg of the victim. The victim was treated at a local hospital and released. On May 24, 2012, he passed away at his residence as a result of complications of this injury.

Best Practices

  • Provide a means to control water, air, concrete, etc., lines when they are pressurized to prevent surges and other unintended movement.
  • Train miners on procedures and safety precautions to take if the discharge line becomes plugged or overloaded.
  • Provide positive communication between the worker controlling the flow and the workers manually handling the concrete hose.
  • Safety chains or guarding should be used at concrete hose discharge location.
  • Anchor the discharge line to prevent it from movement in the event of a surge.

Click here for: MSHA Preliminary Report (pdf),  MSHA Investigation Report (pdf).

Fatality #8 for Coal Mining 2012

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On Thursday, May 17, 2012, at approximately 12:00 p.m., a 57-year-old mechanic was killed at a coal preparation plant. The victim was standing on a 14-foot fiberglass extension ladder when it became unstable and slid across an I-beam. He fell down an adjacent hoist well opening 39 feet to the concrete floor below. He was attempting to cut and remove a 12-inch hoist beam located above the third floor in the plant.

Best Practices

  • Use fall protection when working in an elevated position and securely tie-off where the danger of falling exists.
  • Ensure all workers are adequately trained in the use of fall protection and restraint devices.
  • Examine fall protection equipment and personal protective equipment before each use. Ensure that defective equipment is replaced.
  • Use a ladder only on a stable and level surface, unless it has been secured (top or bottom) to prevent displacement.
  • Properly position ladders to ensure that footing is secure, that the ladder is resting in a manner that prevents movement, and that the ladder is protected from being struck by moving objects.
  • Keep your body centered between the rails of the ladder at all times. Do not lean too far to the side while working.
Click here for: MSHA Preliminary Report (pdf),  MSHA Investigation Report (pdf).

Fatality #7 for Coal Mining 2012

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On Wednesday, April 25, 2012, a 61-year-old demolition contractor with approximately 20 years of experience was killed from injuries received while dismantling a conveyor stacker belt from the surface area of an inactive underground coal mine. The victim had completed the final torch cut on an elevated, inclined stacker frame support beam containing the counter-weight, when the structure fell. The structure contacted the walkway (catwalk) where the victim was located. This section of the walkway, approximately 25 feet long, broke loose from the main structure, causing the victim to fall approximately 27 feet.

Best Practices

  • Establish safe work procedures, which include incorporating the manufacturer’s recommendations, to assure that workers are not exposed to hazards when performing maintenance, repairs, or demolition activity.
  • Prior to beginning work, ensure that all workers are trained in safe work procedures.
  • Examine work areas during the shift for hazards that may be created as a result of the work being performed.
  • Before starting any work, clear the area of tripping and stumbling hazards.
  • Provide and maintain safe access to all work areas.
  • Secure structures against unexpected movement when performing demolition work.
  • Use appropriate fall protection where there is a danger of falling.
  • Stay focused on your work for your own safety and the safety of your fellow workers.
Click here for: MSHA Preliminary Report (pdf),  MSHA Investigation Report (pdf).

Fatality #6 for Coal Mining 2012

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On Friday, March 23, 2012, a 37-year old electrician, with approximately 3½ years experience (approximately 1½ years as an electrician), was killed when he contacted the energized conductors of a shuttle car trailing cable. He was making the final electrical connections for a replacement cable reel when he was electrocuted.

Best Practices

  • Develop a hazard analysis work plan before conducting repairs.
  • Always lock and tag-out electrical equipment prior to electrical work.
  • Perform your own lock and tag-out procedure. Never rely on others to de-energize or disconnect a circuit for you.
  • Use proper Personal Protective Equipment (PPE) for all electrical work.
  • Ensure that all electrical circuits and circuit breakers are identified properly before troubleshooting or performing electrical work.
  • Use properly rated non-contact voltage testers to ensure that circuits are de-energized.
  • Eliminate personal distractions when working on equipment.

For more information related to Lock and Tag safety, click on the following link on the MSHA Web site: Lock and Tag Safety

Click here for: MSHA Preliminary Report (pdf),  MSHA Investigation Report (pdf).

Fatality #5 for Coal Mining 2012

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On Saturday, March 17, 2012, a 55-year-old surface foreman with 19 years of mining experience was killed when he was caught between the frame of a highwall miner transportation dolly and a front-end loader with a duck bill attachment.

Best Practices

  • Never position yourself between equipment in motion and a stationary object. Always be aware of your location in relation to machine parts that have the ability to move.
  • Ensure mobile equipment operators are aware of your location at all times.
  • Maintain communication with mobile equipment operators when working in confined areas. Ensure that line of sight, background noise, or other conditions do not interfere with communication.
  • Ensure miners are adequately trained for the task they are performing.
  • Use a tow bar with adequate length and proper rating when towing heavy equipment.
  • Make yourself more visible by wearing brightly-colored clothing or clothing that is distinguishable from surroundings.
Click here for: MSHA Preliminary Report (pdf),  MSHA Investigation Report (pdf).

Fatality #4 for Coal Mining 2012

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On Saturday, March 10, 2012, at approximately 6:15 p.m., a 34-year-old section foreman with 11 years of experience was killed while operating a continuous mining machine in the No. 2 entry. He was struck by a section of rock that fell from the right-hand rib. The rock was approximately 10 feet and 6 inches long, 3 feet and 4 inches high, and 10 inches thick.

Best Practices

  • Conduct thorough pre-shift and on-shift examinations of the roof, face, and ribs. A thorough exam must be conducted before any work or travel is started in an area and thereafter as conditions warrant.
  • Support any loose roof or rib material adequately or scale loose material before working or traveling in an area.
  • When hazardous roof or rib conditions are detected, areas should be dangered-off until they are made safe.
  • Rib bolts, installed on cycle and in a consistent pattern, provide the best protection from rib falls.
  • Assure that the Approved Roof Control Plan is followed and is suitable for the geologic conditions encountered. If adverse conditions are encountered, the plan must be revised to provide adequate support for the control of the roof, face, and ribs.
Click here for: MSHA Preliminary Report (pdf),  MSHA Investigation Report (pdf).

Fatality #3 for Coal Mining 2012

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On Saturday, March 3, 2012, a 32-year old foreman was killed while attempting to install a canopy on a Joy 21 SC Shuttle Car. The canopy was suspended from the mine roof by a cable and chain. The foreman was seated in the operator’s compartment of the shuttle car beneath the suspended canopy. The canopy shifted and fell, striking the foreman in the head, causing fatal injuries. The victim had 11 years of mining experience, 2 years and 6 weeks experience at this mine, and 32 weeks of experience as a foreman.

Best Practices

  • Before performing a materials handling job, consider all hazards and implement formal procedures that address possible hazards.
  • Devise safe methods to complete tasks involving large objects, massive weights, or the release of stored energy.
  • Always de-energize equipment and block against motion.
  • Never use permanent roof support as a mechanism for lifting heavy objects. Install lifting points that are designed and manufactured to support the intended load.
  • Use only devices designed and rated for the suspension of heavy loads and do not exceed the rated capacity of your hoisting, towing, or rigging tools.
  • When working with or near extremely heavy objects/materials suspended overhead, use a positive means to prevent objects/materials from falling, or moving.
  • Never work in the fall path of objects/materials or massive weights having the potential of becoming off-balanced while suspended.
  • Train personnel to recognize hazardous work procedures, including working in pinch points where inadvertent movement could cause injury.
Click here for: MSHA Preliminary Report (pdf),  MSHA Investigation Report (pdf).

Fatality #2 for Coal Mining 2012

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On Sunday, February 26, 2012, at 1:15 a.m., a 52-year-old deckhand with 4 years of mining experience was determined missing. He had been assigned the task of measuring the draft of a set of empty barges that were to be loaded. He had to cross from the dock to the first empty barge. Witnesses observed him on the empty barge walking up-river on the barge. He apparently fell from the barge into the water. Co-workers saw his cap in the water and immediately called for the rescue squad. The victim was found beneath the bow of the dock at approximately 2:30 a.m. The miner was wearing a flotation device, but the flotation device was not designed to keep an unconscious miner’s face above water.

Best Practices

  • Utilize electronic devices to determine the draft in barges.
  • Install and use lifeline tie-off systems to provide fall protection over water.
  • Utilize and maintain sufficient area lighting and personal lighting.
  • Set up a look out and communications protocol. Do not work alone.
  • Ensure safe access is provided where persons are required to work or travel. Watch footing and stay clear of ropes, cables, and other obstacles. Use de-icing material to clear ice from walkways. Maintain three points of contact where practicable.
  • Wear properly fitted personal flotation devices (PFD) that are designed to keep an unconscious miner’s face above water.
  • Utilize wearable electronic emergency warning systems to immediately notify others of a fall into water. These devices can be equipped with water activated strobe lights and global positioning system (GPS) tracking.
Click here for: MSHA Preliminary Report (pdf),  MSHA Investigation Report (pdf).

Fatality #1 for Coal Mining 2012

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On January 18, 2012, a 44-year-old utility/diesel tram operator with 1 year and 8 months mining experience, died from injuries he received on January 11, 2012. The miner was repairing a damaged water outlet (fire valve manifold) when a 1.5 inch bronze ball valve (quarter turn valve) catastrophically failed, propelling the steel manifold into the miner’s face/head. This fire valve manifold was originally damaged when an oversized load being transported on the adjacent mine track haulage system contacted the outlet causing it to separate from the 6″ mine water supply. The failure resulted from the internal threaded body of the valve separating from the external threaded portion of the valve.

Best Practices

  • When performing work on pressurized water supply piping systems, STOP ALL water flow into the pipe being worked on; BLEED ALL residual pressure from the pipeline, and when possible, OPEN A VALVE at an alternate location to ensure constant pressure relief. LOCK OUT and TAG OUT these valves to ensure safety while repairs are made.
  • NEVER REUSE components in a pressurized line that may have been damaged or compromised.
  • Ensure that components, such as valves, couplings etc. used in a pressurized water system are compatible with the highest measured or expected STATIC pressure in the system.
  • Implement a Standard Operating Procedure for the design, installation, testing, and maintenance of pressurized fluid systems that is consistent with National Fire Protection Association (NFPA) standards.
  • Install slow closing indicating valves. When opening a valve to put water flow into a pressurized system, do it slowly and minimize your exposure to pressurized components. See slow closing indicating valves on MSHA’s Belt Fire Suppression Simulator at the National Mine Health and Safety Academy. http://www.msha.gov/alerts/SafetyFlyers/ScoreaTDMineFire2009.pdf
  • Inspect, examine, and evaluate all materials that are being used during installation, replacement, or repair of pressurized water systems to ensure suitability.
  • Properly train all miners on the hazards associated with working on or around pressurized fluid piping systems.
  • Maintain safe and adequate clearance to prevent mobile equipment and machinery from contacting pressurized lines, valves, etc.
  • Install barriers to prevent equipment from damaging piping and valves.
  • Ensure adequate supervision is in place when moving oversized equipment in haulage entries.
Click here for: MSHA Preliminary Report (pdf), MSHA Investigation Report (pdf).

Fatality #23 for Coal Mining 2011

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On Wednesday, December 7, 2011, at approximately 7:30 a.m., a 49-year-old excavator operator, with 20 years of mining experience, was fatally injured when a highwall he was working near collapsed. The excavator was being used to load rock trucks. The operator’s cab was positioned on the highwall side when the accident occurred.

Best Practices

  • Operate excavators with the cab perpendicular to, and away from, the highwall.
  • Design benches to safely accommodate the type of equipment used and include this in the Ground Control Plan.
  • Examine highwalls from as many perspectives as possible (bottom, sides, and top/crest) while maintaining the safety of the examiner(s). Look for signs of cracking or other geologic discontinuities.
  • Use auxiliary lighting during non-daylight hours to conduct highwall examinations and to illuminate active work areas.
  • Perform supplemental examinations of highwalls, banks, benches, and sloping terrain in the working area during inclement weather.
  • Immediately remove all personnel exposed to hazardous ground conditions, barricade, and/or post signs to prevent entry, and promptly correct the unsafe conditions.
  • Brief foremen and miners coming to work on any uncorrected hazardous conditions, and ensure the hazardous conditions are noted in the on-shift examination record book.
Click here for: MSHA Preliminary Report (pdf), MSHA Investigation Report (pdf).