Study on Mechanical Model for Postpeak Shear Behavior of Rock Joints Based on Degradation Characteristics of the 3D Morphology

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Samples</td><td class="align_center"><i>σ</i><sub>n</sub> (MPa)</td><td class="align_center"><i>τ</i><sub>n</sub> (MPa)</td><td class="align_center"><i>γ</i><sub>n</sub></td><td class="align_center"><i>G</i> (GPa)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Sandstone</td><td class="align_center">5.0</td><td class="align_center">10.12</td><td class="align_center">1.83</td><td class="align_center">10.31</td></tr><tr><td class="align_left">Model-1</td><td class="align_center">5.0</td><td class="align_center">10.10</td><td class="align_center">1.61</td><td class="align_center">10.38</td></tr><tr><td class="align_left">Model-2</td><td class="align_center">5.0</td><td class="align_center">10.00</td><td class="align_center">1.44</td><td class="align_center">10.26</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Results of red sandstone and similar samples under direct shear test.</div>

Advances in Civil Engineering

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Table 2

Table 2: Study on Mechanical Model for Postpeak Shear Behavior of Rock Joints Based on Degradation Characteristics of the 3D Morphology 