A FACEMAN WAS PUTTING A SHORT STRAP INTO THE STRAP TRAY. AS HE REACHED UP TO PLACE STRAP HE INADVERENTLY PLACED RIGHT LEG AT BAC BUMPER OF THE MINER. THE SHUTTLE CAR BEING LOADED BY THE MINER MOVED FORWARD PINNING THE FACEMAN'S RIGHT LEG BETWEEN THE REAR OF THE MINER AND THE SHUTTLE CAR.