EE WAS OPERATIING A SHUTTLE CAR AND HAD JUST RECEIVED A LOAD OF COAL FROM CONTINUOUS MINER. HE TRAMMED FROM FACE & MADE THE TURN TO GO WEST TO THE FEEDER. OPERATOR OF 2ND SHUTTLE CAR WAITED FOR EE TO CLEAR THE INTERSECTION. 1ST CAR HAD TO BACK UP A SHORT DISTANCE TO CLEAR THE LEFT RIB. OPERATOR OF 2ND CAR THOUGHT HE HAD CLEARED THE INTERSECTION & PULLED FORWARD STRIKING 1ST CAR.