Study of the Stability Control of the Rock Surrounding Double-Key Strata Recovery Roadways in Shallow Seams

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Bulk modulus (MPa)</td><td class="align_center">Shear modulus (MPa)</td><td class="align_center">Density (kg·m<sup>−3</sup>)</td><td class="align_center">Friction angle (°)</td><td class="align_center">Cohesion (MPa)</td><td class="align_center">Tensile strength (MPa)</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">0.497</td><td class="align_center">0.298</td><td class="align_center">1800</td><td class="align_center">5</td><td class="align_center">0.001</td><td class="align_center">0</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Numerical simulation parameters of the gob.</div>

Advances in Civil Engineering

tab4

Table 4

Table 4: Study of the Stability Control of the Rock Surrounding Double-Key Strata Recovery Roadways in Shallow Seams 