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Assessment of the Rock Strength using Borehole Acoustic Scanner  

Lee Kwangbae (지하정보기술(주))
Heo Seung ((주)지오제니컨설턴트)
Song Young-Soo (전북대학교 자원 에너지공학과)
Song Seungyup (전북대학교 자원 에너지공학과)
Kim Haksoo ((주)지오제니컨설턴트)
Publication Information
Geophysics and Geophysical Exploration / v.7, no.4, 2004 , pp. 225-233 More about this Journal
Abstract
The purpose of this study is to provide the geo-technical information by assessment of the in-situ rock strength using the reflected wave energy and travel time data acquired by the borehole acoustic scanner. In order to compare and analyze the relationship between the uniaxial compressive strength and the reflected wave energy, the laboratory test and the borehole acoustic scanning were conducted for the set of specimens, such as mortar, concrete, and rock samples which have different rock type. Finally, we verified the applicability of the reflected wave energy acquired by the borehole acoustic scanner to quantitatively estimate the in-situ rock strength.
Keywords
borehole acoustic scanner; reflected wave energy; reflected wave travel-time; rock strength; uniaxial compressive strength;
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