THE SCRAPER WAS DESCENDING THE HAUL ROAD, MAKING A RIGHT TURN WHICH WAS NOT COMPLETED. TO AVOID A TELEPHONE POLE THE OPERATOR WENT TO THE LEFT OF THE POLE DOWN A SHORT SLOPE AND NOSED THE SCRA PED INTO THE ROAD BELOW THE ORIGINAL TURN. THE ABRUPT STOP CAUSED THE SEATBELT TO CRUSH HIS INTESTINES. NO EQUIPMENT WAS DAMAGED, BRAKES AND RETARDER WERE OPERATIVE.