The Stability Evaluation of Shaft during Drastic Drawdown Dewatering of Alluvium

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Lithology</td><td class="align_center">Formation compression ratio (mm·m<sup>−2</sup>)</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Coarse sand/gravel</td><td class="align_center">0.100</td></tr><tr><td class="align_left">Medium sand</td><td class="align_center">0.081</td></tr><tr><td class="align_left">Clay</td><td class="align_center">0.032</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Prediction of formation compression ratio of industrial plaza in the Zhuxianzhuang Coal Mine.</div>

Shock and Vibration

tab4

Table 4

Table 4: The Stability Evaluation of Shaft during Drastic Drawdown Dewatering of Alluvium 