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Simulation of fully grouted rockbolts in underground roadways using FLAC2D

Journal Article


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Abstract


  • A numerical modelling approach of a mine roadway reinforced with fully encapsulated rockbolts is proposed to study the interaction between rockbolts and the rock mass. The rockbolt bond–slip relationships defined by conducting push tests of short rockbolts are implemented in the rockbolt elements used in the two-dimensional Fast Lagrangian Analysis of Continua (FLAC2D) model for precise simulation of the rockbolt behaviour. The performance of rockbolts installed in the roadway model under various conditions is discussed and compared with previous research. This paper provides a numerical modelling methodology to study the interaction between rockbolts and the rock mass subject to a variable stress state, rock mass quality, and the presence of rock fractures or joints. It was found that the bearing plates can improve the reinforcing performance of rockbolts. © Copyright 2014 Published by NRC Research Press

UOW Authors


  •   Ma, Shuqi (external author)
  •   Aziz, Naj I.
  •   Nemcik, Jan A.

Publication Date


  • 2014

Citation


  • Ma, S., Nemcik, J. & Aziz, N. (2014). Simulation of fully grouted rockbolts in underground roadways using FLAC2D. Canadian Geotechnical Journal, 51 (8), 911-920.

Scopus Eid


  • 2-s2.0-84929165214

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4026&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3017

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 911

End Page


  • 920

Volume


  • 51

Issue


  • 8

Abstract


  • A numerical modelling approach of a mine roadway reinforced with fully encapsulated rockbolts is proposed to study the interaction between rockbolts and the rock mass. The rockbolt bond–slip relationships defined by conducting push tests of short rockbolts are implemented in the rockbolt elements used in the two-dimensional Fast Lagrangian Analysis of Continua (FLAC2D) model for precise simulation of the rockbolt behaviour. The performance of rockbolts installed in the roadway model under various conditions is discussed and compared with previous research. This paper provides a numerical modelling methodology to study the interaction between rockbolts and the rock mass subject to a variable stress state, rock mass quality, and the presence of rock fractures or joints. It was found that the bearing plates can improve the reinforcing performance of rockbolts. © Copyright 2014 Published by NRC Research Press

UOW Authors


  •   Ma, Shuqi (external author)
  •   Aziz, Naj I.
  •   Nemcik, Jan A.

Publication Date


  • 2014

Citation


  • Ma, S., Nemcik, J. & Aziz, N. (2014). Simulation of fully grouted rockbolts in underground roadways using FLAC2D. Canadian Geotechnical Journal, 51 (8), 911-920.

Scopus Eid


  • 2-s2.0-84929165214

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=4026&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3017

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 911

End Page


  • 920

Volume


  • 51

Issue


  • 8