Calculation Method of Overburden Damage Height Based on Fracture Mechanics Analysis of Soft and Hard Rock Layers

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Number</td><td class="align_center">Inclination (°)</td><td class="align_center">Azimuth (°)</td><td class="align_center">Aperture (mm)</td><td class="align_center">Depth (m)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">70</td><td class="align_center">270</td><td class="align_center">113</td><td class="align_center">96</td></tr><tr><td class="align_left">2</td><td class="align_center">63</td><td class="align_center">270</td><td class="align_center">113</td><td class="align_center">101</td></tr><tr><td class="align_left">3</td><td class="align_center">55</td><td class="align_center">270</td><td class="align_center">113</td><td class="align_center">110</td></tr><tr><td class="align_left">4</td><td class="align_center">45</td><td class="align_center">270</td><td class="align_center">113</td><td class="align_center">127</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Construction parameters of endoscopic detection drilling-boreholes.</div>

Geofluids

tab4

Table 4

Table 4: Calculation Method of Overburden Damage Height Based on Fracture Mechanics Analysis of Soft and Hard Rock Layers 