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A study of the shear behaviour of infilled rock joints under cyclic loadng and constant normal stiffness conditions

Conference Paper


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Abstract


  • Shear behaviour of infilled rock joints under cyclic loading and constant normal stiffness

    conditions were studied. The experiments were carried out in a cyclic loading direct shear apparatus.

    The laboratory studies were conducted using saw tooth shaped asperities cast in high strength gypsum

    plaster. Two types of triangular asperities inclined at 9.5° (Type I) and 18.5° (Type II) from the shearing

    direction were considered for testing. Clayey sand (75% fine sand and 25% Kaolinite) at initial moisture

    content of 12.5% was selected as the infill material. Profile of shear planes and strength envelopes for

    different conditions of infill thickness to asperity height ratio, initial normal stress, and initial asperity

    angle were investigated.

UOW Authors


  •   Aziz, Naj I.
  •   Mirzaghorbanali, Ali (external author)
  •   Nemcik, Jan A.

Publication Date


  • 2014

Citation


  • Mirzaghorbanali, A., Nemcik, J. & Aziz, N. (2014). A study of the shear behaviour of infilled rock joints under cyclic loadng and constant normal stiffness conditions. Proceedings of the 2014 Coal Operators' Conference (pp. 210-215). Australia: University of Wollongong.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2154&context=coal

Ro Metadata Url


  • http://ro.uow.edu.au/coal/493/

Abstract


  • Shear behaviour of infilled rock joints under cyclic loading and constant normal stiffness

    conditions were studied. The experiments were carried out in a cyclic loading direct shear apparatus.

    The laboratory studies were conducted using saw tooth shaped asperities cast in high strength gypsum

    plaster. Two types of triangular asperities inclined at 9.5° (Type I) and 18.5° (Type II) from the shearing

    direction were considered for testing. Clayey sand (75% fine sand and 25% Kaolinite) at initial moisture

    content of 12.5% was selected as the infill material. Profile of shear planes and strength envelopes for

    different conditions of infill thickness to asperity height ratio, initial normal stress, and initial asperity

    angle were investigated.

UOW Authors


  •   Aziz, Naj I.
  •   Mirzaghorbanali, Ali (external author)
  •   Nemcik, Jan A.

Publication Date


  • 2014

Citation


  • Mirzaghorbanali, A., Nemcik, J. & Aziz, N. (2014). A study of the shear behaviour of infilled rock joints under cyclic loadng and constant normal stiffness conditions. Proceedings of the 2014 Coal Operators' Conference (pp. 210-215). Australia: University of Wollongong.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2154&context=coal

Ro Metadata Url


  • http://ro.uow.edu.au/coal/493/