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

<div>Relation curves between relative ultrasonic wave velocity and hole depth (<i>L</i>1).</div>

Shock and Vibration

Figure 8: Analysis of Cumulative Damage for Shared Rock in a Neighborhood Tunnel under Cyclic Blasting Loading Using the Ultrasonic Test 