WHEN PILLAR FALL OCCURRED THE CONTINUOUS MINER WAS TRAMMING OUT OF THE INTERSECTION WHEN SEVERAL ROOF BOLTS BROKE AT APPROX. 3' LETTING ROCK FALL ON EDGE OF MINER PREVENTING IT FROM SLEWING SI DEWAYS TO COME OUT OF PLACE. NO INJURIES, NO BLOCKAGE OF VENTILATION ESCAPEWAYS; WILL NOT BE CLEANED UP. TIMBERED OFF.