Study on the Safety Evaluation Method of Life-Saving Passage in Building Ruins under the Action of Aftershock

<div>The probability percentage <i>P</i> (%) of the secondary collapse of the life-saving passage under aftershocks after the main earthquake within 168 h rescue time.</div>

Shock and Vibration

fig19

Figure 19

Figure 19: Study on the Safety Evaluation Method of Life-Saving Passage in Building Ruins under the Action of Aftershock 