Research on the First Breaking Mechanism of the Main Roof of Coal Seam with High Dip Angle

<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">Support location</td><td class="align_center">First weighting interval (m)</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Lower part</td><td class="align_center">32.2</td></tr><tr><td class="align_left">Middle lower part</td><td class="align_center">30.7</td></tr><tr><td class="align_left">Middle part</td><td class="align_center">28.5</td></tr><tr><td class="align_left">Middle upper part</td><td class="align_center">31.3</td></tr><tr><td class="align_left">Upper part</td><td class="align_center">33</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>First weighting interval of the main roof of the working face.</div>

Advances in Civil Engineering

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Table 2

Table 2: Research on the First Breaking Mechanism of the Main Roof of Coal Seam with High Dip Angle 