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THE ROOF AREA OF THE INTERSECITON IN 3 ENTRY WAS SHALE, OF WHICH WAS OF A WEAKEN STATE DUE TO WATER SECRETING. THE ROOF FALL WAS CONFINED IN THE INTERSECITON OF 3 ENTRY.
TRANSITION ZONE BETWEEN SHALE AND SANDSTONE - WATER AT BASE OF SANDSTONE DUE TO RECENT RAIN - SANDSTONE HAS CRACKS DUE TO CLOSE PROXIMITY OF FACE UP/STRIP PIT WHICH HAD BEEN SHOT HAND DURING S URFACE MINING - LESS THAN 250 FT. FROM THE HIGH WALL.
TRANSITION ZONE BETWEEN SHALE & SANDSTONE RECENT RAINS HAD SANDSTONE CHARGED WITH WATER CAUSING IT TO LOOSEN THE SHALE INITIAL FALL 3 TO 3.5FT CONTINUED TO WORK & FALL OVER THE NEXT 5 DAYS TO 41/2FT IN CENTER OF PLACE #1 FALL IS 20FT WIDE &35-38FT LONG INITIALLY & CONTINUED TO FALL UNTIL IT WAS ABOUT 48FT
HEAD OF CONTINUOUS MINER PICKED UP A PIECE OF METAL STRAP WITH THE BITS THROWING THE METAL BACK HITTING RIGHT ARM. WAS ON SIDE OF MINER OPPOSITE THE OPERATOR.
THIS WAS AN INTENTIONAR ROOF FALL WE WERE PLANNING TO CUT THIS ROOF DOWN FOR OUR BELT DRIVE WHEN ROOF STATED TO FALL THE MINER WAS REMOVED ALL MEN WERE REMOVED AND THIS ROCK ARE ALLOWED TO FAL L THIS WAS INTENTIONAL AND WAS WITHIN A FEW FEETOF THE FACE IN A NEW ENTRY.
A WABCO 25 TON END DUMP TRUCK WAS BACKING UP A RAMP TO DUMP A LOAD OF ROCK. THE DRIVER BACKED INTO THE BANK ON THE LEFT (DRIVER'S) SIDE, SPUN THE WHEELS AND KILLED THE MOTOR. HE PUSHED IN THE CLUTCH, WITHOUT SETTING THE BRAKES, AND TRIED TO START THE TRUCK. THE TRUCK STARTED ROLLING, THE DRIVER JUMPED OUT, THE TRUCK GOT TO THE BOTTOM OF THE RAMP, HIT AN EDGE AND LAYED OVER ON THE R