Experimental and Theoretical Investigation of Overburden Failure Law of Fully Mechanized Work Face in Steep Coal Seam

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Similar constants</td><td class="align_center">Geometric (αl)</td><td class="align_center">Unit weight (αl)</td><td class="align_center">Time (αt)</td><td class="align_center">Dynamics (RM)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Similarity ratio</td><td class="align_center">1 : 100</td><td class="align_center">0.7 : 1</td><td class="align_center">0.05</td><td class="align_center">0.007 ×R H(prototype)</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Advances in Civil Engineering

tab2

Table 2

Table 2: Experimental and Theoretical Investigation of Overburden Failure Law of Fully Mechanized Work Face in Steep Coal Seam 