Coal Mine Safety and Health Report of Investigation: Underground Coal Mine Fatal Fall of Roof Accident, March 22, 2013, Castle Valley No. 4 Mine, Huntington, Utah. I.D. No. 42-02335.

摘要

On Friday, March 22, 2013, at approximately 3:05 p.m., a 29-year-old continuous mining machine operator with 9-years of mining experience suffered fatal crushing injuries when a portion of the mine roof fell during retreat mining in the 5th Left C panel. The victim was operating a continuous mining machine by remote control at the time of the accident. The victim and the continuous mining machine helper were positioned along the right side of the continuous mining machine. They were taking the second left-hand pillar-lift from the No. 3 entry between the No. 16 and No. 17 crosscuts when they were struck by a section of fallen mine roof measuring approximately 7 to 8-feet in width by 16-feet in length, and from 16 to 20-inches in thickness, with an estimated weight of nearly 7-tons. The entire section of roof material that fell was approximately 20-feet long by 25-feet wide.