A roof fall measuring 32'L X 18'W X 8' thick was discovered 500' outby the working section in the return near survey point 70273. The failure was due to laminated coal/rock streaks above the 6' torque tension supports. The fall affected ventilation. An MSHA control order was issued the roof was resupported and ventilation was re-established.
Employee was using a razor knife to remove nylon bindings around supplemental roof support plates (pizza pans) when he recieved a laceration to the right hands. Wound required sutures.
A roof fall occurred on the 001 section measuring 18'long, 18'wide, 12'high. No injuries occurred as a result of the fall, mining equipment was affected. The fall occurred due to a 8' coal seam above the 6' torque tension roof bolts. Equipment was moved from the section and the roof control plan was modified.
A roof fall measuring 50' L x 19' W x 8' H was discovered in the last open line of crosscuts between #6 and # 7 entries, 50' inby spad 68152. The fall occurred due to failure above the anchorage zone of 5' torque tension and 12' cable roof bolts. Ventilation and the transportation of miners' were affected. No injuries occurred as a result of the fall.
Employee was working on a shuttle car with a chain hoist, as he was pulling slack chain from the hoist it became loose and struck the employees chipping a tooth.
A roof fall measuring 34'long, 16'wide, and 5'high occurred in the #7 Intake entry SE Mains. The fall occurred due to laminated coal and rock above the 5' torque tension roof bolts. No injuries occurred due to the fall. Equipment movement on the active section was affected by the fall.
A roof fall measuring 22' wide, 18' high, 8' thick fell in the belt entry 1000' outby the working section and outby spad 67301. The area was developed 06/12/11 with 6' torque tension bolts as the primary support. The fall occurred due to laminated rock and coal above the 6' primary supports. No injuries resulted from the fall, belt haulage was affected.
A roof fall measuring 50' long, 18' wide and 10' thick occurred in the neutral entry 500' from the active section. The fall affected intake ventilation. The failure occurred due to coal/rock streaks above the permanent supports, 6 foot torque tension roof bolts. The fall was investigated by MSHA. No injuries occurred as a result of the fall.