Evaluation of Resin and Mechanical Roof Bolting Systems for Strata- bound Deposits.
NTIS: PB/264-062 Available for Reference At Bureau Libraries :109 pages
A field experiment was performed in a production unit of an operating copper room and pillar mine to compare the support capabilities provided by resin and mechanical roof bolts. Resin and mechanical roof bolts were alternately installed in eight intersections in a single entry. Rock mechanics instrumentation was installed to measure roof sag, bed separation, convergence, bolt pull out, torque, and strain. Bolt cost and installation time are included. Two analyses of the test were made. The analysis of the rock mechanics data showed there was no definite difference between the two bolting systems. From a broader analysis on a mine-wide basis, it was concluded that resin bolts gave better support. A critical view of the experiment is given in the appendix.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB/264-062 Available for Reference At Bureau Libraries
White Pine Copper Company