Cablebolting in underground mine / Крепление кабелей в подземных горных выработках

Cablebolts are high capacity flexible tendons composed of multi-wire strand which are normally installed and grouted in drilled holes at regular spacings to provide reinforcement and support of excavations in rock. They can be cut to any length and installed in single or multi-strand configurations and can be installed from small adits and tunnels (drifts) where limited clearance would preclude the use of rigid tendons.

The last decade has seen a dramatic increase in cablebolt usage in underground mining. There has been a corresponding increase in associated research around the world.

Researchers and industry experts came together for a day in June of 1992 during a cablebolting workshop held as part of the International Symposium on Rock Support in Sudbury, Canada. Interest in the topic was impressive as demonstrated by the standing-room only crowd at the workshop. In the aftermath of this gathering, authors Mark Diederichs and Jean Hutchinson of the

Geomechanics Research Centre, together with Peter Kaiser and Dougal McCreath of Laurentian University and with Chris Windsor and Alan Thompson of the Rock Reinforcement Group (Commonwealth Scientific and Industrial Research Organization, C S.I.R.O., Australia), decided that there was a need to bring together, in an easy-to-use and comprehensive handbook, the current state-of-theart in cablebolting. <...>