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A study of rock bolting failure modes

Journal Article


Abstract


  • Rock bolting has advanced rapidly during the past 4 decades due to a better understanding of load transfer

    mechanisms and advances made in the bolt system technology. Bolts are used as permanent and temporary

    support systems in tunnelling and mining operations. A review of has indicated that three systems

    of reinforcement devices have evolved as part of rock bolt and ground anchor while the rock is not generally

    thought of as being a component of the reinforcement system. A classification of rock bolting reinforcement

    systems is presented, followed by the fundamental theory of the load transfer mechanism. The

    failure mode of two phases of rock bolting system is formularised. The failure modes of cable bolting are

    discussed using a bond strength model as well as an iterative method. Finally, the interfacial shear stress

    model for ribbed bar is introduced and a closed form solution is obtained using a tri-line stress strain

    relationship.

UOW Authors


Publication Date


  • 2013

Citation


  • Cao, C., Nemcik, J., Ren, T. & Aziz, N. (2013). A study of rock bolting failure modes. International Journal of Mining Science and Technology, 23 (1), 79-88.

Scopus Eid


  • 2-s2.0-84876961345

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5186

Number Of Pages


  • 9

Start Page


  • 79

End Page


  • 88

Volume


  • 23

Issue


  • 1

Abstract


  • Rock bolting has advanced rapidly during the past 4 decades due to a better understanding of load transfer

    mechanisms and advances made in the bolt system technology. Bolts are used as permanent and temporary

    support systems in tunnelling and mining operations. A review of has indicated that three systems

    of reinforcement devices have evolved as part of rock bolt and ground anchor while the rock is not generally

    thought of as being a component of the reinforcement system. A classification of rock bolting reinforcement

    systems is presented, followed by the fundamental theory of the load transfer mechanism. The

    failure mode of two phases of rock bolting system is formularised. The failure modes of cable bolting are

    discussed using a bond strength model as well as an iterative method. Finally, the interfacial shear stress

    model for ribbed bar is introduced and a closed form solution is obtained using a tri-line stress strain

    relationship.

UOW Authors


Publication Date


  • 2013

Citation


  • Cao, C., Nemcik, J., Ren, T. & Aziz, N. (2013). A study of rock bolting failure modes. International Journal of Mining Science and Technology, 23 (1), 79-88.

Scopus Eid


  • 2-s2.0-84876961345

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5186

Number Of Pages


  • 9

Start Page


  • 79

End Page


  • 88

Volume


  • 23

Issue


  • 1