NIOSH Mining Safety and Health Topic

TGRSS - Point/Combination Anchored Bolts

TGRSS Home | Glossary

Point/Combination Anchored Bolts consist of two-piece bolts using a grout anchor and a tensioning coupler without an expansion anchor.

Possible problems include:

 Combination bolts



Page last updated: September 30, 2009
Page last reviewed: September 30, 2009
Content Source: National Institute for Occupational Safety and Health (NIOSH) Mining Division