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What is Ultrasonic Survey of EDZ in Argillaceous Rock about?

This study investigates the excavation-damaged zone (EDZ) in Callovo-Oxfordian argillaceous rock during shaft excavation using ultrasonic velocity measurements. A device with 21 ultrasonic sensors was deployed to monitor changes in wave propagation, revealing the initialization and extension of damage as excavation progressed. The results indicate significant variations in velocity linked to the complex mechanical behavior of the rock, which is crucial for assessing the safety of nuclear waste storage in un

Author

JS Luis

Language

EN