Numerical Investigation of Influences of Drilling Arrangements on the Mechanical Behavior and Energy Evolution of Coal Models

<div>Comparison between experimental and numerical failure modes of coal under uniaxial compression test. The black and red dots represent the tensile microcrack and shear microcrack, respectively.</div>

Advances in Civil Engineering

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Figure 4

Figure 4: Numerical Investigation of Influences of Drilling Arrangements on the Mechanical Behavior and Energy Evolution of Coal Models 