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    Practicable BEM Analysis of Frictional Bolts in Underground Opening

    Source: Journal of Structural Engineering:;1998:;Volume ( 124 ):;issue: 003
    Author:
    Yan-Chang Wang
    ,
    Xiao-Wei Gao
    DOI: 10.1061/(ASCE)0733-9445(1998)124:3(342)
    Publisher: American Society of Civil Engineers
    Abstract: In this paper, a new boundary element method for the interaction between frictional bolts and rock mass is presented by formulating the surface frictional forces of the bolts in terms of the displacements of the rock mass. The corresponding formulation for the underground openings supported by frictional bolts is derived. The action of the bolts on the rock mass is reduced to line integrals along the bolt length. Then the bolts are discretized into a number of quadratic elements. Analytical expressions are obtained when the source point coincides with one of the element nodes. Formulations for calculating the stress at internal points are also presented. The algebraic equations are established by the usual nodal collocation scheme. A computer code for the approach has been written based on the linear element program. Finally, two examples are presented to demonstrate the effectiveness of this method.
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      Practicable BEM Analysis of Frictional Bolts in Underground Opening

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/32939
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    • Journal of Structural Engineering

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    contributor authorYan-Chang Wang
    contributor authorXiao-Wei Gao
    date accessioned2017-05-08T20:57:02Z
    date available2017-05-08T20:57:02Z
    date copyrightMarch 1998
    date issued1998
    identifier other%28asce%290733-9445%281998%29124%3A3%28342%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/32939
    description abstractIn this paper, a new boundary element method for the interaction between frictional bolts and rock mass is presented by formulating the surface frictional forces of the bolts in terms of the displacements of the rock mass. The corresponding formulation for the underground openings supported by frictional bolts is derived. The action of the bolts on the rock mass is reduced to line integrals along the bolt length. Then the bolts are discretized into a number of quadratic elements. Analytical expressions are obtained when the source point coincides with one of the element nodes. Formulations for calculating the stress at internal points are also presented. The algebraic equations are established by the usual nodal collocation scheme. A computer code for the approach has been written based on the linear element program. Finally, two examples are presented to demonstrate the effectiveness of this method.
    publisherAmerican Society of Civil Engineers
    titlePracticable BEM Analysis of Frictional Bolts in Underground Opening
    typeJournal Paper
    journal volume124
    journal issue3
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)0733-9445(1998)124:3(342)
    treeJournal of Structural Engineering:;1998:;Volume ( 124 ):;issue: 003
    contenttypeFulltext
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