A 300 ' SECTION OF 6"" POLY PIPE WAS BEING TOWED AROUND A LEFT HAND TURN WITH A MINER ON THE GROUND, STANDING BETWEEN A BERM AND A CABLE TREE. WHILE MAKING THE TURN, THE PIPE FOLLOWED ALONG THE BERM UNTIL THE TENSION WAS SUCH THAT THE PIPE BEGAN TO RIDE UP AND OVER THE BERM. WHEN THE POLY PIPE CLEARED THE BERM, THE TENSION ON THE PIPE WAS RELEASED. PIPE HIT THE MINER BELOW LEFT KNEE