Numerical Studies on the Failure Process of Heterogeneous Rock Material with Preexisting Fracture under Uniaxial Compression

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Parameters</td><td class="align_center">Value</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Uniaxial compressive strength of rock</td><td class="align_center">68.9 MPa</td></tr><tr><td class="align_left">Elastic modulus of rock</td><td class="align_center">13.1 GPa</td></tr><tr><td class="align_left">Poisson’s ratio of rock</td><td class="align_center">0.26</td></tr><tr><td class="align_left">The average UCS of mesoscopic elements</td><td class="align_center">120.26 MPa</td></tr><tr><td class="align_left">The average elastic modulus of mesoscopic elements</td><td class="align_center">14.2 GPa</td></tr><tr><td class="align_left">The average tensile strength of mesoscopic elements</td><td class="align_center">10.95 MPa</td></tr><tr><td class="align_left">Density of rock</td><td class="align_center">2380 kg/m<sup>3</sup></td></tr><tr><td class="align_left">Frictional angle of rock</td><td class="align_center">38.8°</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Parameters obtained and used in the numerical simulation.</div>

Advances in Civil Engineering

tab2

Table 2

Table 2: Numerical Studies on the Failure Process of Heterogeneous Rock Material with Preexisting Fracture under Uniaxial Compression 