The film discusses the history and importance of rock bolting in underground mining, highlighting its role in ensuring miner safety by providing ground support. Early miners relied on timbering, but ...

Industrial equipment provider BMG’s Superbolt multi-jackbolt tensioners – part of the Nord-Lock range – are designed to reduce downtime in the mining sector and eliminate unsafe and laborious bolting ...

This file type includes high resolution graphics and schematics when applicable. The essential properties of a bolt pattern are its elastic center and reaction module. The principal elastic axis is ...