WHILE MOVING SHOTCRETE MACHINE WITH TWO OTHER MINERS THE INJURED MINER STRAINED A MUSCLE IN HIS LOWER BACK AT 8 PM. TOLD SHIFT BOSS HE WAS FINE. AT 11 PM THE SAME MINER WAS WALKING BY A PALLET WITH (2) 1/2 YD BAGS OF SHOTCRETE ON IT & HE SAYS ONE SLIPPED OFF & PINNED HIS FOOT. AGAIN HE TOLD HIS SHIFT BOSS HE WAS OK. AT END OF HIS WORK SHIFT WE TOOK HIM TO HOSPITAL TO BE CHECKED. DR