Influence of Coal Cleats on Conical Pick Cutting Process Based on PFC

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Tensile strength (MPa)</td><td class="align_center">Cohesion (MPa)</td><td class="align_center">Internal friction angle (°)</td><td class="align_center">Stiffness ratio</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">52<i>e</i>6</td><td class="align_center">28<i>e</i>6</td><td class="align_center">30</td><td class="align_center">1.1</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Micro bond parameters of coal particles.</div>

Advances in Materials Science and Engineering

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Table 4

Table 4: Influence of Coal Cleats on Conical Pick Cutting Process Based on PFC 