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District 8 - Coal Mine Safety and Health
Info-Grams and Close Call Accidents


Info-Grams
Close Call Graphic
Department of Labor
Mine Safety and Health Administration

Accident Info-Gram
MAY 2002

Roof Fall Traps Two Miners

A non-fatal roof fall occurred on May 24, 2002, at an underground mine in District 8. Measuring approximately 65' long, 19' wide, and 6.5' high, the fall completely covered a Joy continuous miner and a Joy shuttle car. The roof fall trapped the miner operator and shuttle-car operator for approximately fifty minutes. After establishing communications with the trapped miners, the section crew began rescue operations. The crew set timbers on top of the roof fall. This provided support during recovery operations. Subsequently, the crew extricated the two-trapped miners through an opening, approximately 18 inches wide, in the roof fall. They were treated for minor injuries at a local hospital and released.
Roof Fall SupportRoof Fall Top
BEST PRACTICES
  • Examine the roof frequently and thoroughly.
  • Watch for changing roof conditions and communicate these conditions to others.
  • Drill test holes at least one foot longer than primary support to help identify problems in roof strata.
  • Notify your foreman, danger out the area, and correct conditions immediately when adverse roof conditions are detected.
  • Install additional support, shorten cut depth, and narrow entry width where slips, cracks, or other adverse roof or rib conditions exist.

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This file was last updated on 01/28/2003

This information was provided by concerned miners in an effort to eliminate accidents. Accident or "close call" information within District 8 may be shared by contacting the MSHA office at (812) 882-7617.