Underground Heavy-Duty Roof and Rib Control Offers Safety and Security
Primary roof and rib control of underground openings is traditionally accomplished by metallic supports that may have a variety of configurations. Perhaps the most common are steel roof and rib bolts, which are generally spaced on a regular pattern within the roof, and sometimes ribs of the entry. These primary support devices are intended to prevent catastrophic failure of the openings. They are generally not suited to prevent spalling between their isolated locations. Tensar International Corporation offers a heavy-duty polymer geogrid to provide supplemental roof and rib skin control.
