Evaluation of the State of Rocks in Load Steps by Low-frequency Ultrasonic Flaw Detection
The purpose of this study was to quantitatively evaluate the state of rocks in load steps by using the low-frequency ultrasonic flaw detection method. The initial Vp-velocities measured with a CND tester were in the order of Z-axis < X-axis < Y-axis, with 1687.5 m/s along the X-axis, 1...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
The Korean Society of Engineering Geology
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/52813 |