A Coal Burst Mitigation Strategy for Tailgate during Deep Mining of Inclined Longwall Top Coal Caving Panels at Huafeng Coal Mine

<table class="fixed-width table-group" id="tab3"><tr><td><table class="table"><colgroup><col style="width:15.20em"/><col style="width:11.85em"/><col style="width:10.13em"/><col style="width:10.08em"/></colgroup><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_center" colspan="3">4# coal seam</td><td class="align_center">Immediate roof</td></tr><tr class="thead"><td class="align_left">Duration of dynamic fracture (ms)</td><td class="align_center">Elastic strain energy index</td><td class="align_center">Bursting energy index</td><td class="align_center">Bending energy index</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">33.3</td><td class="align_center">13.05</td><td class="align_center">5.1</td><td class="align_center">49.5</td></tr><tr><td class="align_center" colspan="3">High bursting</td><td class="align_center">Medium bursting</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Testing results of intrinsic bursting proneness.</div>

Shock and Vibration

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Table 3

Table 3: A Coal Burst Mitigation Strategy for Tailgate during Deep Mining of Inclined Longwall Top Coal Caving Panels at Huafeng Coal Mine 