ABSTRACT
Ground support standards for MIM underground hardrock mines were reviewed and updated in 1996. The review was conducted by a cross section of the workforce and focussed on ground support selection, ground support design, installation procedures and quality control management. A wide range of bolt types were investigated and trialed, with the cement grouted rebar chosen as the preferred primary rockbolt. A key component in the ground support standards review was the development and implementation of standard work instructions for installation of all ground support. Quality control is ensured through routine monitoring and periodic audits by rock mechanics engineers. The ground support standards are constantly monitored to look for means of improvement, and are regularly updated to reflect changes.
