Limestone

Fatality #5 & #6 for Metal/Nonmetal Mining 2014

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ftl2014m05-06On April 11, 2014, a 53-year-old scaler with 8 years of experience and a 29-year old scaler with 8 years of experience were killed at an underground limestone mine.  The miners were in a basket on a boom truck scaling a pillar about 40 feet above the mine floor.  Large slabs of rock fell from the rib and struck an outrigger and the back of the truck, causing the boom to fall to the mine floor. 

Best Practices

  • Establish safe work procedures and train all persons to recognize and understand these procedures.
  • Discuss safe work procedures before beginning work.  Identify and control all hazards associated with the work to be performed and the methods to properly protect persons.
  • Always examine, sound, and test for loose ground in areas before starting to work, after blasting, and as ground conditions warrant.
  • Always wear fall protection where there is a danger of falling.
  • Scale loose material from a safe position and location.
  • Test for loose material frequently during work activities.
  • Install ground support in roof and ribs where conditions warrant.
  • Use equipment with a reach that reduces the possibility of the equipment being struck by falling material.
  • Position equipment to keep outriggers and boom from being struck by falling material.

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

Fatality #2 for Coal Mining 2014

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ftl2014c02On Friday, February 21, 2014, a 24-year-old continuous mining machine operator with 5½ years of mining experience was killed when he was pinned between the end of the boom of a continuous mining machine and the right coal rib. The miner was tramming the remote controlled continuous mining machine in the last open crosscut toward the Number 1 entry.

Best Practices
  • Install and maintain proximity detection systems to protect personnel and eliminate accidents of this type. See the proximity detection single source page on the MSHA website.
  • Ensure everyone, including the equipment operator, is outside the machine turning radius before starting or moving equipment.
  • Develop policies and procedures for starting and tramming self-propelled equipment and especially remote controlled continuous mining machines. Implement measures to assure their use which includes training all miners that are exposed to the hazards.
  • Avoid the “RED ZONE” areas when operating or working near a continuous mining machine especially when setting over or place changing a remote controlled continuous mining machine.
  • When moving continuous mining machines where the left and right traction drives are operated independently, use the low tram speed.
  • Assign another miner to assist the continuous mining machine operator when it is being moved or repositioned.
  • Frequently review, retrain, and discuss avoiding the “RED ZONE” areas.

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

Fatality #19 for Metal/Nonmetal Mining 2013

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ftl2013m19On December 4, 2013, a 63-year old lead man with 16 years of experience was killed at a crushed stone mine. The victim initiated a blast and was struck by flyrock from the blast. He was standing 153 feet from the nearest blast hole and was struck by rock as large as 19 inches long by 14 inches wide by 7 inches thick.

 

Best Practices

 

  • Establish and discuss safe work procedures before beginning work. Identify and control all hazards associated with the work to be performed and the methods to properly protect persons. Task train all persons in safe work procedures.
  • Maintain and use all available methods of communication, such as sirens and radios, to warn persons of an impending blast. Establish methods to ensure that all persons are out of the blasting area.
  • Guard or barricade all access routes to the blasting area to prevent the passage of persons or vehicles.
  • Before firing a blast, give ample warning to allow all persons to be evacuated.
  • Clear and remove all persons from the blasting area unless suitable blasting shelters are provided to protect persons from flyrock.
  • Verify that the blasting procedures are effective and being followed at all times.

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

Fatality #18 for Metal/Nonmetal Mining 2013

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ftl2013m18On November 18, 2013, a 33-year old contract electrician foreman with 14 years of experience was injured at a crushed stone mine. The victim was working in a 480-volt electrical enclosure, pulling cable for a new pump that was being installed, when he contacted energized conductors. He was transported to a hospital where he died on November 22, 2013.

Best Practices

  • Ensure that persons are trained on all electrical tests and safety equipment necessary to safely test and ground the circuit where work is to be performed.
  • Positively identify the circuit on which work is to be conducted.
  • De-energize power and ensure that the circuit is visibly open for circuits being worked on and circuits near the work area.
  • Lock and Tag! Place YOUR lock and tag on the disconnecting device.
  • Use properly rated Personal Protective Equipment (PPE) including Arc Flash Protection such as a hood, gloves, shirt, and pants.
  • Ensure ALL electrical components in the enclosure are de-energized by testing for voltage using properly rated test equipment.
  • Install warning labels on the terminal covers of bottom feed circuit breakers warning that “Bottom terminal lugs remain energized when the circuit breaker is open.”

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

Fatality #12 for Metal/Nonmetal Mining 2013

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ftl2013m12On September 18, 2013, a 56-year old front-end loader operator with 16 years of experience was killed at a crushed stone operation. The victim was attempting to remove a rock from a pug mill hopper when he was engulfed by the material in the hopper.

Best Practices

  • Establish and discuss policies and procedures for safely clearing a hopper.
  • Equip hoppers with mechanical devices or other effective means of handling material so persons are not required to work where they are exposed to entrapment by sliding material.
  • Install a heavy screen (grizzly) to control the size of material and prevent clogging.
  • Task train persons to recognize all potential hazardous conditions and to understand safe job procedures for elimination of the hazards before beginning work.
  • Before working on or near equipment, ensure that the discharge operating controls are deenergized and locked out.
  • Wear a safety harness and lanyard, which is securely anchored and tended by another person, prior to entering bins, hoppers, tanks, or silos.

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

Fatality #11 for Metal/Nonmetal Mining 2013

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ftl2013m11On September 16, 2013, a 58-year old truck driver with 25 years of experience was killed at a crushed stone operation. The victim was driving a loaded haul truck out of a quarry when the truck traveled through a berm and over an 80-foot highwall. The victim was ejected from the truck.

Best Practices

  • Provide and maintain adequate berms or guardrails on the banks of roadways where a drop-off exists.
  • Conduct adequate pre-operational checks prior to operating mobile equipment.
  • Always wear a seat belt when operating self-propelled mobile equipment.
  • Maintain control of self-propelled mobile equipment while it is in motion.
  • Operate mobile equipment at speeds consistent with the conditions of roadways, tracks, grades, clearance, visibility, curves, and traffic.
  • Do not exit or jump from moving mobile equipment.

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

Fatality #3 for Metal/Nonmetal Mining 2013

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ftl2013m03On March 27, 2013, a 61-year old loader operator with 24 years of experience was killed at a crushed stone operation. The victim was in a front-end loader about 50 feet from the base of a highwall when a blast was initiated. Broken rock struck the front-end loader and covered it. The rock was removed from the front-end loader and the victim was recovered about 10 hours after the blast occurred.

 

Best Practices

 

  • Do not initiate a blast until it has been determined that all persons have been evacuated from the blast area.
  • Establish and discuss safe work procedures. Identify and control all hazards associated with the work to be performed along with the methods to properly protect persons.
  • Task train all persons to recognize all potential hazardous conditions, to ensure all persons have left the blast area, and to understand safe job procedures for elimination of the hazards before beginning work.
  • Maintain and use all available methods of communication, such as sirens and radios, to warn persons of an impending blast. Establish methods to ensure that all persons are out of the blast area.
  • Before firing a blast give ample warning to allow all persons to be evacuated.
  • Guard or barricade all access routes to the blast area to prevent the passage of persons or vehicles.
  • Verify that the blasting procedures are effective and being followed at all times.

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

Fatality #2 for Metal/Nonmetal Mining 2013

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ftl2013m02

On January 21, 2013, a 54-year old mechanic with 6 years of experience was killed at a lime operation. The victim went to a kiln pre-heat deck to repair a leaking hydraulic cylinder that activates a pusher arm on the kiln. He was caught between the corner of the angle iron and the plate connecting the push rods.

Best Practices
 

  • Establish and discuss safe work procedures. Identify and control all hazards associated with the work to be performed along with the methods to properly protect persons.
  • Always follow the equipment manufacturer’s recommended maintenance procedures when conducting repairs to machinery.
  • Task train all persons to recognize all potential hazardous conditions and understand safe job procedures to eliminate all hazards before beginning work.
  • Before working on or near equipment, ensure that the equipment power circuits are locked out/tagged out and that the equipment is blocked against hazardous motion.
  • Require all persons to be positioned to prevent them from being exposed to any hazards.
  • Monitor personnel to ensure safe work procedures, including lock out/ tag out and safe work positioning, are followed.
  • Ensure guarding is in place to cover potential pinch points and moving parts in areas routinely accessed by personnel.

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

Fatality #1 for Metal/Nonmetal Mining 2013

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ftl2013m01On January 7, 2013, a 49-year old assistant plant manager with 30 years of experience was injured at a crushed stone operation. The victim was working on a lift, taking samples from a highwall, when a large rock fell and struck him. He was hospitalized and died on January 19, 2013.

Best Practices

  • Establish and discuss safe work procedures for working near highwalls. Identify and control all hazards.
  • Train all persons to recognize adverse conditions and environmental factors that can decrease highwall stability and understand safe job procedures to eliminate all hazards before beginning work.
  • Look, Listen and Evaluate pit and highwall conditions daily, especially after each rain, freeze, or thaw.
  • Remove loose or overhanging material from the face. Correct hazardous conditions by working from a safe location.
  • Ensure that work or travel areas and equipment are a safe distance from the toe of the highwall.

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

Fatality #16 for Metal/Nonmetal Mining 2012

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On October 24, 2012, a 52-year old utility miner with 19 years of experience was killed on the surface of an underground limestone mine. He was operating a forklift, traveling on a decline toward the mine entrance, when the forklift went out of control. The forklift struck a concrete support for the belt conveyor and overturned, killing him.

Best Practices

  • Conduct adequate pre-operational checks and ensure the service brakes are properly maintained and will stop and hold the mobile equipment prior to operating.
  • Ensure that mobile equipment operators are adequately task trained in all phases of mobile equipment operation before performing work.
  • Ensure the load is stable and secured on the forks of the forklift.
  • When descending a grade, operate the forklift with the load in the upgrade position.
  • Maintain control of self-propelled mobile equipment while it is in motion.
  • Operating speeds shall be consistent with conditions of roadways, tracks, grades, clearance, visibility, curves, and traffic.
  • Operate equipment within its designed limitations. 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.

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