Stability Mechanism and Control Factors on Equipment Removal Area under “Goaf-Roof-Coal” Structure

<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">Item</td><td class="align_center">Technical parameters</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Model number</td><td class="align_center">ZY8000/17.5/35</td></tr><tr><td class="align_left">Support height</td><td class="align_center">1.75∼3.50 m</td></tr><tr><td class="align_left">Width</td><td class="align_center">1750 mm</td></tr><tr><td class="align_left">Centre-to-centre spacing</td><td class="align_center">1750 mm</td></tr><tr><td class="align_left">Rated working resistance</td><td class="align_center">8000 kN</td></tr><tr><td class="align_left">Rated initial support force</td><td class="align_center">6413 kN</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Advances in Civil Engineering

tab2

Table 2

Table 2: Stability Mechanism and Control Factors on Equipment Removal Area under “Goaf-Roof-Coal” Structure 