Study on Roof-Coal Caving Characteristics with Complicated Structure by Fully Mechanized Caving Mining

<table class="table-group" id="tab10"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_center" colspan="6">The caving time of hydraulic support (s)</td></tr><tr class="thead"><td class="align_left">Maximum time</td><td class="align_center">Minimum time before beginning of subject</td><td class="align_center">Average time</td><td class="align_center">Maximum time</td><td class="align_center">Minimum time during subject</td><td class="align_center">Average time</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">1286</td><td class="align_center">197</td><td class="align_center">742</td><td class="align_center">312</td><td class="align_center">48</td><td class="align_center">180</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Statistics on the caving time.</div>

Shock and Vibration

tab10

Table 10

Table 10: Study on Roof-Coal Caving Characteristics with Complicated Structure by Fully Mechanized Caving Mining 