Underground

Fatality #14 for Coal Mining 2012

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On September 11, 2012, at approximately 10:15 a.m., a fatal accident occurred while moving longwall equipment at the Drummond Company, Inc., Shoal Creek Mine. A 28 year old miner was killed when he was crushed between the coal rib and a large power center, weighing approximately 30 tons.

Best Practices
  • Prior to beginning any work activity, train the miners to perform the task-at-hand safely.
  • STAY OUT of areas where clearance is tight (pinch points) and visibility is limited when haulage equipment is being operated to move large equipment and/or components.
  • Ensure that equipment operators establish good communications between themselves and other miners that may be working around or near their equipment.
  • While moving equipment, ensure that all persons are located safely out of the route of travel, especially with limited visibility.
  • Ensure that all large equipment and/or components are secured adequately to prevent unintended motion when being moved.
  • Inspect the mine floor properly in areas where large equipment and/or components will be transported to identify any irregularities that may cause unexpected movement of the equipment and/or components being moved, or with the machinery being operated to move the equipment.

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

Fatality #13 for Coal Mining 2012

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On Tuesday, July 31, 2012, at approximately 12:45 p.m., a 43-year-old scoop operator received fatal crushing injuries when he was caught between a battery powered scoop and the coal rib while attempting to change the scoop’s batteries. The scoop was parked at a battery charging station located four crosscuts from the working section when it was impacted by another scoop which was traveling outby adjacent to the charging station.

Best Practices
  • Equipment operators should sound audible warnings when traveling around turns or blind spots, through ventilation curtains, and at any time the operator’s visibility is obstructed.
  • Always look in the direction of equipment movement and exercise caution in areas where clearance is tight and visibility is limited. Install warning signs to remind equipment operators of the hazards present in these areas.
  • Assure that the area where equipment is parked is conspicuously marked with reflective material and/or signs if there is a potential for other equipment to strike it.
  • Install Proximity Detection Systems on continuous mining machines and haulage equipment to prevent these types of injuries and fatalities. Proximity detection Single Source Page
  • Ensure that equipment operators establish good communications between themselves and other miners that may be working around or near their equipment.

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

Fatality #12 for Coal Mining 2012

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On Friday, July 27, 2012, at approximately 4:15 a.m., a 35-year-old move crew member with 5 years of mining experience received fatal crushing injuries when he was pinned between the conveyor boom of a remote controlled continuous mining machine and the outby rib of the No. 4 Right Crosscut. The continuous mining machine was moving to an adjacent entry in preparation for the oncoming day shift when the accident occurred.

Best Practices

  • Ensure that all persons, including the continuous mining machine operator, are positioned outside the machine’s turning radius before starting or moving the machine.
  • Maintain clear visibility and communications with all personnel in the vicinity of the equipment, and minimize the number of miners working around or near continuous mining machines.
  • Frequently review, retrain, and discuss the importance of staying out of any “RED ZONE” area while operating or working near a continuous mining machine.  REDZONE2 (pdf) and Continuous Miner Package
  • Position the conveyor boom away from the operator or other miners working in the area when tramming or moving the machine.
  • Install Proximity Detection Systems on continuous mining machines and haulage equipment to prevent these types of injuries and fatalities.
    Proximity Detection Single Source Page

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

Fatality #10 for Coal Mining 2012

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On Monday, June 25, 2012, at approximately 11:45 AM, a 33-year-old outby foreman with 7 years of experience was killed while installing additional rib/roof support in the No. 5 belt/track entry. The victim was wedging a timber against the mine roof to support the rib, when a section of the left hand rib rolled on top of him. The rock was approximately 14 feet long, 4 feet high, and 17 inches thick.

  • 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 from a safe location before working or traveling in an area.
  • Danger-off areas that have hazardous roof or rib conditions until they are made safe.
  • Take additional safety precautions when mining heights increase because rib fall injury rates increase substantially as the mining height increases.
  • Use rib bolting to control unstable ribs. Rib bolts provide the best protection against rib falls and are most effective when installed on cycle and in a consistent pattern.
  • Be alert to changing geologic conditions which may affect roof/rib conditions.
  • Ensure that the Approved Roof Control Plan is followed and is suitable for the geologic conditions encountered.
  • Revise the Approved Roof Control Plan as needed when adverse conditions are encountered.

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

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 #6 for Metal/Nonmetal Mining 2012

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Best Practices

  • Ensure that mobile equipment operators are task trained adequately and demonstrate proficiency in all phases of mobile equipment operation before performing work.
  • Conduct adequate pre-operational checks and ensure the service brakes are properly maintained and will stop and hold the mobile equipment prior to operating.
  • Operators of self-propelled mobile equipment shall maintain control of the equipment while it is in motion.
  • Operating speeds shall be consistent with conditions of roadways, tracks, grades, clearance, visibility, curves, and traffic.
  • Ensure that equipment manufacturer’s load limits are not exceeded.
  • Slow down or drop to a lower gear when necessary. Post areas where lower speeds are warranted.
  • Always wear a seat belt when operating self-propelled mobile equipment.
  • Ensure that equipment operators maintain adequate communications.
Click here for: MSHA Preliminary Report (pdf), MSHA Investigation Report (pdf), Overview (powerpoint), Overview (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 #4 for Metal/Nonmetal Mining 2012

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On March 20, 2012, a 54 year-old mine owner with approximately 25 years of experience was killed at an underground gemstone mine. He was cleaning fine ore with a shovel and loading it in the bucket of a front-end loader when rock fell from the top left rib about 20 feet high. The victim was working alone.

Best Practices

  • Examine work areas and identify and control all hazards before starting any work.
  • Establish safe work procedures and train all persons to recognize and understand these procedures.
  • Always examine, sound, and test for loose ground in areas before starting to work, after blasting, and as ground conditions warrant.
  • Test for loose material frequently during work activities and where necessary, scale loose material safely.
  • Install ground support in roof and ribs where conditions warrant.
  • Do not perform work alone in any area where hazardous conditions exist that would endanger your safety.
Click here for: MSHA Preliminary Report (pdf), MSHA Investigation Report (pdf), Overview (powerpoint), Overview (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).