An empirical comparison between new and existing laboratory-based dynamic sample configurations

Authors: Knox, G; Berghorst, A; de Bruin, P Download Paper Open access courtesy of:

DOI https://doi.org/10.36487/ACG_rep/1815_58_Knox

Cite As:
Knox, G, Berghorst, A & de Bruin, P 2018, 'An empirical comparison between new and existing laboratory-based dynamic sample configurations', in Y Potvin & J Jakubec (eds), Caving 2018: Proceedings of the Fourth International Symposium on Block and Sublevel Caving, Australian Centre for Geomechanics, Perth, pp. 747-758, https://doi.org/10.36487/ACG_rep/1815_58_Knox



Abstract:
Laboratory-based dynamic testing allows rockbolt developers to apply impulses of energy to a rockbolt in order to approximate some loading aspects that the rockbolt would experience during a rockburst in an underground mine. This data can be used to compare a rockbolt’s dynamic performance providing geotechnical engineers with useful information for designing their required ground support system. There are two general sample configurations commonly used in this type of dynamic testing – split-tube test and continuous-tube test. This paper summarises a proposed third configuration – a multisplittube test.

Keywords: ground support, laboratory testing, rockburst, dynamic, fractured ground

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