A roof fall at the 23 crosscut was discovered while doing the weekly with a Federal Inspector present. The fall was in the #6 entry on 2 mains. The fall measured 18'by 80'by 12' high. The fall fell on the hi-line going to the section.
Change of weather caused immediate roof strata to loosen and break from surrounding top.
Slip in overlying rock pulled the overburden above the extent of the cable bolts.
Slip in overlying rock pulled the overburden above the extent of the cable bolts.
Rainfall event far exceeded national standard for Bottom Development Plan standards. Pumps were unable to keep up with the amount of water coming in to the pit.
Slip in overlying rock pulled the overburden above the extent of the cable bolts.
Water in the roof caused the strength of the overburden to degrade. Also, poor geological conditions were recognized being present due to sharp elevation change over a short distance.
The miner was pinning in #3 entry on the left side. Was pinning in a low spot and was on knees. After drilling hole, lowered the boom and the starter steel stuck in the roof. Put hand on the boom to pull self to a standing position when the steel came out smashing right middle finger against the pot.
Employee was pulling a stuck drill steel from the roof and strained his shoulder.
Placing drill steel to top, and steel popped back smacking thumb resulting in stiches.