Analysis of Cumulative Damage for Shared Rock in a Neighborhood Tunnel under Cyclic Blasting Loading Using the Ultrasonic Test

<div>The relation curves between the ultrasonic wave velocity and the hole depth (<i>L</i>1).</div>

Shock and Vibration

Figure 6: Analysis of Cumulative Damage for Shared Rock in a Neighborhood Tunnel under Cyclic Blasting Loading Using the Ultrasonic Test 