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Presentation
Improvement of rock bolt profiles using analytical and numerical methods
Faculty of Engineering - Papers (Archive)
  • Chen Cao, University of Wollongong
  • Jan Anton Nemcik, University of Wollongong
  • Najdat I Aziz, University of Wollongong
RIS ID
35668
Publication Date
1-1-2011
Publication Details

Cao, C., Nemcik, J. Aziz, N. (2011). Improvement of rock bolt profiles using analytical and numerical methods. In N. Aziz, B. kininmonth, J. Nemcik T. Ren (Eds.), 11th Underground Coal Operators' Conference (pp. 141-147). University of Wollongong: University of Wollongong Printery.

Abstract
The anchorage capacity of fully grouted bolts has been studied for many years, however the bolt rib profile and its effect on bolt shear resistance is poorly understood. A new development in calculating load transfer capacity between two rib profiles of varying geometries is discussed. The derived mathematical equations presented calculate the stress distribution adjacent to the fully grouted bolt and bolt pull out force needed to fail the resin. The Fast Lagrangian Analysis Continua (FLAC) program was used to verify the calculations of stress within the resin. The novel idea of coupling the bolt geometry with the calculated stress provides another powerful tool to investigate the bolt profile configuration and its effects on the load transfer mechanism for the benefit of the mining industry.
Disciplines
Citation Information
Chen Cao, Jan Anton Nemcik and Najdat I Aziz. "Improvement of rock bolt profiles using analytical and numerical methods" (2011) p. 141 - 147
Available at: http://works.bepress.com/chen_cao/2/