Temporal and Spatial Evolution Mechanisms of the Water-Conducting Fractured Zone of Overlying Strata in the Kongzhuang Coal Mine

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Hole number</td><td class="align_center">Height of water-conducting fracture zone/m</td><td class="align_center">The ratio of fracture height-to-recovery thickness</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">#1 hole</td><td class="align_center">65.27</td><td class="align_center">15.54</td></tr><tr><td class="align_left">#2 hole</td><td class="align_center">63.70</td><td class="align_center">15.17</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Height of water-conducting fracture zone detected at working face 7303.</div>

Geofluids

tab1

Table 1

Table 1: Temporal and Spatial Evolution Mechanisms of the Water-Conducting Fractured Zone of Overlying Strata in the Kongzhuang Coal Mine 