Evaluation of the State of Rocks in Load Steps by Low-frequency Ultrasonic Flaw Detection

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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...

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Bibliographic Details
Main Authors:	Kang, S, Kim, J, Noh, J, Na, T, Jang, Hyong Doo, Ko, C
Format:	Journal Article
Published:	The Korean Society of Engineering Geology 2017
Online Access:	http://hdl.handle.net/20.500.11937/52813

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