Study on the Fracture Evolution Law of Coal Based on Image Retrieval Method and X-Ray Computed Tomography

<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">The scanning stage</td><td class="align_center">2</td><td class="align_center">3</td><td class="align_center">4</td><td class="align_center">5</td><td class="align_center">6</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Similarity</td><td class="align_center">0.960938</td><td class="align_center">0.960938</td><td class="align_center">0.957031</td><td class="align_center">0.859375</td><td class="align_center">0.816406</td></tr><tr><td class="align_left">The similar layers</td><td class="align_center">605</td><td class="align_center">602</td><td class="align_center">608</td><td class="align_center">606</td><td class="align_center">594</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The similar layers in each scanning stage.</div>

Geofluids

tab3

Table 3

Table 3: Study on the Fracture Evolution Law of Coal Based on Image Retrieval Method and X-Ray Computed Tomography 