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

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Option</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">1</td><td class="align_center">460</td><td class="align_center">501</td></tr><tr><td class="align_left">2</td><td class="align_center">299</td><td class="align_center">331</td></tr><tr><td class="align_left">3</td><td class="align_center">273</td><td class="align_center">303</td></tr><tr><td class="align_left">4</td><td class="align_center">281</td><td class="align_center">311</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The displacement curve about the material roadway’s surface in different advanced support schemes.</div>

Advances in Civil Engineering

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Table 5

Table 5: Roof Control Technology of Mining Roadway under the Influence of Advanced Supporting Pressure 