Study on Mechanism and Main Influencing Factors of Rockburst under Complex Conditions of Hard and Deep Overburden

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Number</td><td class="align_center">Location of mining pressure manifestation</td><td class="align_center">Situation description</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">Central west auxiliary transportation lane 3-4 link lane (mileage 996–1361 m)</td><td class="align_center">The floor bulges and multiple fractures occur on both sides of the tunnel</td></tr><tr><td class="align_left">2</td><td class="align_center">Central west auxiliary transportation lane 6-7 link lane (mileage 2275–2820 m)</td><td class="align_center">Bottom plate ruptures</td></tr><tr><td class="align_left">3</td><td class="align_center">Central belt main lane 2-3 link lane (mileage 679–1043 m)</td><td class="align_center">Tunnel floor bulges</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Appearance of mine pressure in Xinzhuang Coal Mine.</div>

Shock and Vibration

tab4

Table 4

Table 4: Study on Mechanism and Main Influencing Factors of Rockburst under Complex Conditions of Hard and Deep Overburden 