Triaxial compression experiments on intact veined andesite
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- 作者：Alexandr Turichshev ; alex.turichshev@mail.utoronto.ca" class="auth_mail" title="E-mail the corresponding author ; John Hadjigeorgiou
- 关键词：Intact veined rock ; Triaxial testing ; Acoustic emissions ; El Teniente mine ; CMET
- 刊名：International Journal of Rock Mechanics and Mining Sciences
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：86
- 期：Complete
- 页码：179-193
- 全文大小：9086 K
文摘
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Five intact veined andesite specimens were tested in triaxial compression with AE.
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Experiments demonstrated that intact veined rock behaved differently than intact rock.
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High C′/C ratios were observed in tests with confining pressure of up to 30 MPa.
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The onset of AE correlated with damage initiation stress, not with crack initiation stress.
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Experiments showed a short stage of unstable fracturing, atypical of intact rock.