Research on the Deformation and Control Technology of Surrounding Rock in Entry Retaining along the Gob Side

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Concrete components</td><td class="align_center">Cementitious material</td><td class="align_center">Water</td><td class="align_center" colspan="2">Aggregate</td><td class="align_center">Admixture</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Name of concrete base material</td><td class="align_center">Cement</td><td class="align_center">Water</td><td class="align_center">Stone</td><td class="align_center">Sand</td><td class="align_center">Admixture</td></tr><tr><td class="align_left">1 m<sup>3</sup> concrete base material quality</td><td class="align_center">550 kg</td><td class="align_center">220 kg</td><td class="align_center">800 kg</td><td class="align_center">765 kg</td><td class="align_center">1 kg</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The parameters of pump injected concrete.</div>

Advances in Civil Engineering

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Table 3

Table 3: Research on the Deformation and Control Technology of Surrounding Rock in Entry Retaining along the Gob Side 