ROCK FALL WAS 18' WIDE X 15' LONG X15' HIGH. FALL WAS 90' OUTBY SURVEY STATION #27 MINING OF #3 SEAM BELOW & PRESENT OF WATER IN TOP. FALL WAS ORIGINALLY BOLTED WITH 6' RESIN BOLTS & 8' CONVEN TIAL BOLTS.
Mine No 4 Coal
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Avísenme cuando se presente un nuevo incidente de la MSHA en Mine No 4.
- Muertes
- 0
- Incidentes totales
- 4
- Años en registro
- 1989–1990
- Último incidente
- Feb 1990
Incidentes reportables
4 en archivo1990 · 1 incidente
1989 · 3 incidentes
HE WAS DRILING ROOF BOLT HOLE. WAS GETTING READY TO ADD SECOND PIECE OF DRILL STEEL WHEN FIRST PIECE FELL OUT OF HOLE HITTING HAND WHICH WAS ON DRILL POT STRIKING SECOND FINGER.
HAD ROOF FALL IN #1 ENTRY APPROXIMATELY 150 FEET INBY SURVEY STATION #25. THIS WAS ABOUT 500 FEET OUTBY OF THE WORKING FACE. FALL WAS ABOUT 15' WIDE X 10' LONG X 9' HIGH. FALL WAS IN AN OLD ENTRY THAT WAS MINED IN 1923. WE CLEANED UP ORIGINAL FALL AND HA D BOLTED BACK WITH 6' ROSIN BOLTS.
HE WAS BEATING A PIECE OF ROCK OFF OF THE TAIL PIECE WHEN HE TWISTED HIS KNEE AND IT SLIPPED OUT OF PLACE.