MSHA's Roof Control Campaign Targets Underground Mine Ribs

During its 2012 Preventive Roof/Rib Outreach Program (PROP), MSHA will focus its annual mine roof control program on efforts to improve mine rib control. In 2011, the agency says, fatal rib roll accidents in underground coal mines outnumbered more typical fatal roof fall accidents. Roof control in underground mines involves securing the top as well as the sides of travel ways, or walls (known as ribs in underground coal mines). Injuries resulting from roof and rib failures increased from 439 in 2010 to 484 in 2011.

MSHA will distribute specific information to underground mine operators and miners about these dangers, as well as methods to check and address hazardous roof and rib conditions. During the initiative, inspectors will distribute posters that identify rib control problems and list several possible solutions. The agency's report, "Protecting Underground Miners from Rib Falls," points out key trends in recent roof and rib accidents, and provides safety advice and tips for mine operators to consider in maintaining proper roof and rib control.