EE WAS DIRECTING THE PLACEMENT OF A STEEL STAND TO BLOCK A CONVEYOR COUNTERWEIGHT. THE STAND TIPPED OVER STRIKING A STEEL BARRIER. THE WELDED ATTACHMENT OF THE BARRIER BROKE AND STRUCK THE EE'S ANKLE AFTER HE SLIPPED TO THE GROUND ATTEMPTING TO RETREAT. EE WAS AWAY FROM THE LINE OF FIRE IN HIS ORIGINAL POSITION.