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    Validation of 3D discrete fracture network model focusing on areal sampling methods-a case study on the powerhouse cavern of rudbar lorestan pumped storage power plant, Iran

    Access Status
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    Authors
    Bandpey, A.
    Shahriar, K.
    Sharifzadeh, Mostafa
    Marefvand, P.
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Bandpey, A. and Shahriar, K. and Sharifzadeh, M. and Marefvand, P. 2018. Validation of 3D discrete fracture network model focusing on areal sampling methods-a case study on the powerhouse cavern of rudbar lorestan pumped storage power plant, Iran. Geomechanics and Engineering. 16 (1): pp. 21-34.
    Source Title
    Geomechanics and Engineering
    DOI
    10.12989/gae.2018.16.1.021
    ISSN
    2005-307X
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/72116
    Collection
    • Curtin Research Publications
    Abstract

    © 2018 Techno-Press, Ltd. Discontinuities considerably affect the mechanical and hydraulic properties of rock mass. These properties of the rock mass are influenced by the geometry of the discontinuities to a great extent. This paper aims to render an account of the geometrical parameters of several discontinuity sets related to the surrounding rock mass of Rudbar Lorestan Pumped Storage Power Plant powerhouse cavern making use of the linear and areal (circular and rectangular) sampling methods. Taking into consideration quite a large quantity of scanline and the window samplings used in this research, it was realized that the areal sampling methods are more time consuming and cost-effective than the linear methods. Having corrected the biases of the geometrical properties of the discontinuities, density (areal and volumetric) as well as the linear, areal and volumetric intensity accompanied by the other properties related to four sets of discontinuities were computed. There is an acceptable difference among the mean trace lengths measured using two linear and areal methods for the two joint sets. A 3D discrete fracture network generation code (3DFAM) has been developed to model the fracture network based on the mapped data. The code has been validated on the basis of numerous geometrical characteristics computed by use of the linear, areal sampling methods and volumetric method. Results of the linear sampling method have significant variations. So, the areal and volumetric methods are more efficient than the linear method and they are more appropriate for validation of 3D DFN (Discrete Fracture Network) codes.

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    • Comparison of methods for calculating geometrical characteristics of discontinuities in a cavern of the Rudbar Lorestan power plant
      Bandpey, A.; Shahriar, K.; Sharifzadeh, Mostafa; Marefvand, P. (2017)
      © 2017 Springer-Verlag GmbH Germany Discontinuities considerably affect the mechanical and hydraulic properties of rock mass. These properties of the rock mass are influenced by the geometry of the discontinuities to a ...
    • Effect of shape and size of sampling window on the determination of average length, intensity and density of trace discontinuity
      Sharifzadeh, Mostafa ; Kamali, A.; Shahriar, K.; Aalianvari, A.; Esmaeilzadeh, A. (2016)
      The fractures geometrical characteristics can be calculated by various sampling methods in 1 dimension (1D) & 2 dimensions (2D). The Discrete Fracture Network (DFN) simulation results show some of the equations are suitable ...
    • Effect of shape and size of sampling window on the determination of average length, intensity and density of trace discontinuity
      Kamali, A.; Shahriar, K.; Sharifzadeh, Mostafa; Aalianvari, A.; Esmaeilzadeh, A. (2016)
      The fractures geometrical characteristics can be calculated by various sampling methods in 1 dimension (1D) & 2 dimensions (2D). The Discrete Fracture Network (DFN) simulation results show some of the equations are suitable ...
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