New Chemical Grouting Materials and Rapid Construction Technology for Inclined Shaft Penetrating Drift-Sand Layer in Coal Mine

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Category</td><td class="align_center">Mechanical characteristics</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Density</td><td class="align_center">1.6938 g/cm<sup>3</sup></td></tr><tr><td class="align_left">Compressive strength</td><td class="align_center">10.38∼13.09 MPa</td></tr><tr><td class="align_left">Strength of extension</td><td class="align_center">0.32∼0.53 MPa</td></tr><tr><td class="align_left">Elasticity modulus</td><td class="align_center">401.37∼490.64 MPa</td></tr><tr><td class="align_left">Poisson’s ratio</td><td class="align_center">0.447∼0.846</td></tr><tr><td class="align_left">Cohesion</td><td class="align_center">0.866 MPa</td></tr><tr><td class="align_left">Internal friction angle</td><td class="align_center">49.38°</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Main properties of the cured material.</div>

Advances in Materials Science and Engineering

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Table 3

Table 3: New Chemical Grouting Materials and Rapid Construction Technology for Inclined Shaft Penetrating Drift-Sand Layer in Coal Mine 