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    Multi-Scale joints roughness characterization using wavelet and shear modeling

    75426.pdf (563.6Kb)
    Access Status
    Open access
    Authors
    Sharifzadeh, Mostafa
    Mehri, S.
    Mirzaeian, Y.
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Sharifzadeh, M. and Mehri, S.A. and Mirzaeian, Y. (2012). Multi-Scale joints roughness characterization using wavelet and shear modelling, in 7th Asian Rock Mechanics Symposium, ARMS 2012, pp. 218-226. Seoul, Korea: ARMS7.
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/75184
    Collection
    • Curtin Research Publications
    Abstract

    Mechanical behavior prediction of rock joints is very important in the rock mechanics. Many models have been proposed to predict the mechanical behavior of joints at which lack of correct evaluation of effective roughness coefficient has been the most important shortage. In this research, each of the upper and lower profiles of joint surfaces is considered as a 2-dimensional wave. Then, multi-scale decomposition based on wavelet theory has been applied studying on asperities. Upper and lower profiles have been combined to produce a composite surface having asperities characteristics of both joint surfaces. Each of the composed wave components (roughness and undulation) has been characterized with statistical quantity of arithmetic mean deviation (Ra). This procedure of characterizing for 2-dimensional waves has been easily extended to 3-dimensional joint surfaces. Conformity in the results of shear and dilation modeling and laboratory tests satisfactorily verifies success of the proposed procedure.

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