Friction Rock Stabilizers-A Different Approach to Ground Support

A four-year program of research, development, and field testing has led to the refinement of a ground support system utilizing friction rock stabilizers, or "Split Sets," as they are known by their patented trade name. These rock anchors are a distinct departure from conventional anchors or fully grouted anchor systems, and allow control of ground movement internally in a manner that permits controlled deformation during the early phase of rock "relaxation" around a mine opening, increased anchorage per unit length during the secondary creep stage, and have the ability to strengthen and stabilize mine openings for extended periods of time.