Coal Mine Safety and Health Report of Investigation: Underground Coal Mine, Fall of Roff Accident, April 22, 2008 at Mine No. 1, Osaka Mining Corporation, Appalachia, Wise County, Virginia. ID No. 44-07150

摘要

At approximately 8:55 a.m., on Tuesday, April 22, 2008, David Sizemore, roof bolting machine operator, was fatally injured and Marvin Music, mining machine operator, received non-life threatening injuries when a portion of the mine roof and rib collapsed. The accident occurred while Music was operating a remotely controlled continuous mining machine loading coal and rock into a shuttle car. Both miners were in the no. 7 Entry about 17.5 feet outby the last row of permanently installed roof support. Sizemore was standing closely behind Music talking and observing the operation. Rock fell from the mine roof and rib between the right rib and three installed 72 inch torque tension roof bolts. One of the roof bolts broke at the time of the fall. The portion of the mine roof and rib that fell, striking both miners, measured approximately 6 feet long and was 3 feet wide at the inby end and 19 inches wide at the outby end by up to 14 inches thick. On April 22, 2008, at about 9:45 a.m., Allen Wolfe, outside man, called Michael Clements, special investigations supervisor, to inform MSHA of the accident. A 103(k) order was issued to ensure the safety and health of persons in the affected area of the mine until the investigation could be completed.