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<p>In recent decades, increasingly sophisticated computational tools have been developed to estimate anisotropic rock mass strength and behaviour. To date, the discrete-element method-based synthetic rock mass approach best captures the complex behaviour of an anisotropic rock mass. However, such computationally intensive methods may be less practical for data-limited projects that rely on multiple model simulations to assess the variability in rock mass properties. This study developed an alternative computational method wherein a high-resolution grid of discrete zones with joint or intact rock properties simulates the effects of a two-dimensional discrete fracture network. The continuum-based method developed and implemented using the finite difference program <i>FLAC</i> can capture anisotropic rock mass behaviour in most scenarios, providing a different option than the more commonly used discrete element method. The proposed method was applied to various rock mass configurations, comparing the results of more common numerical techniques from previous literature to evaluate its practicality as an alternative for estimating anisotropic rock mass strength.</p>

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Development and Evaluation of a Continuum-based Jointed Rock Mass Model

  • 期刊论文

  • 发表日期：

    2025年7月23日

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  • R. A. Ziebarth,
  • A. G. Corkum,
  • G. Walton

摘要

In recent decades, increasingly sophisticated computational tools have been developed to estimate anisotropic rock mass strength and behaviour. To date, the discrete-element method-based synthetic rock mass approach best captures the complex behaviour of an anisotropic rock mass. However, such computationally intensive methods may be less practical for data-limited projects that rely on multiple model simulations to assess the variability in rock mass properties. This study developed an alternative computational method wherein a high-resolution grid of discrete zones with joint or intact rock properties simulates the effects of a two-dimensional discrete fracture network. The continuum-based method developed and implemented using the finite difference program FLAC can capture anisotropic rock mass behaviour in most scenarios, providing a different option than the more commonly used discrete element method. The proposed method was applied to various rock mass configurations, comparing the results of more common numerical techniques from previous literature to evaluate its practicality as an alternative for estimating anisotropic rock mass strength.