Roof Control Technology of Mining Roadway under the Influence of Advanced Supporting Pressure

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Serial number</td><td class="align_center" colspan="2">Cumulative displacement (mm)</td></tr><tr class="thead"><td class="align_center">Top and bottom</td><td class="align_center">Two gangs</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Option 1</td><td class="align_center">511</td><td class="align_center">589</td></tr><tr><td class="align_left">Option 2</td><td class="align_center">403</td><td class="align_center">451</td></tr><tr><td class="align_left">Option 3</td><td class="align_center">337</td><td class="align_center">389</td></tr><tr><td class="align_left">Option 4</td><td class="align_center">321</td><td class="align_center">377</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The displacement curve about transportation roadway surface in different advanced support schemes.</div>

Advances in Civil Engineering

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Table 6

Table 6: Roof Control Technology of Mining Roadway under the Influence of Advanced Supporting Pressure 