Failure mechanics of cable bolt systems

CIM Bulletin, Vol. 76, No. 856, 1983

M.L JEREMIC and G.J.P. DELAIRE, Laurentian University, Sudbury, Ontario

The mechanical aspects of cable bolt failure are considered from the point of view of properties of grout and cable, as well as of the rock in which it is anchored. The results from recent investigations made in-situ as well as in the lab are combined and presented with reference to other work done in the area. An attempt is made to stimulate the thinking along these lines so as to initiate further research which may enhance the design of cable bolting as it applied to mining operations.
Keywords: Rock mechanics, cable bolts, Bond stress, Grout, Bond failure, Internal friction, External friction.