EE was tramming a scoop thru a set of double doors @ 81 Brk Intake toward the belt line to rock dust. After pulling thru 1st set of doors, EE arrived at the 2nd set of doors and started to open them when scoop started rolling back toward 1st set of doors which the scoop hit causing door to go across EE's body in the deck of the scoop scraping back and catching arm against scoop.