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https://hdl.handle.net/2440/102512
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Type: | Conference paper |
Title: | Developing a generalized multiple-step loading damage model to predict rock behaviour during multiple-step loading triaxial compression test |
Author: | Taheri, A. Tani, K. |
Citation: | Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering, 2009 / Hamza, M., Shahien, M., El-Mossallamy, Y. (ed./s), vol.1, pp.429-432 |
Publisher: | IOS Press |
Issue Date: | 2009 |
ISBN: | 9781607500315 |
Conference Name: | 17th International Conference on Soil Mechanics and Geotechnical Engineering (ICSMGE) (5 Oct 2009 - 9 Oct 2009 : Alexandria, Egypt) |
Editor: | Hamza, M. Shahien, M. El-Mossallamy, Y. |
Statement of Responsibility: | A, Taheri, K.Tani |
Abstract: | Multiple-step Loading Triaxial Compression Test (ML-TCT) method is a useful tool to evaluate strength parameters from a single specimen. However, because of accumulated damage in the specimen with repeated cycles of axial loading/unloading, the shear strength is prone to be underestimated. Therefore, considering two models which were previously developed for a siltstone and a mudstone, a generalized Multiple-step Loading Damage (MLD) model was developed to simulate ML-TCTs with various stress paths. Numerical simulations of generalized MLD model indicated that the margin between shear strength parameters determined by Single-step Loading Triaxial Compression Tests (SL-TCT) and ML-TCTs, increase with increasing rock strength. Moreover, the upper bound values for c′ and lower bound values for ф′ could be resulted for ML-TCTs with confining pressure in increasing manner. Whereas, the upper bound values for ф′ and lower bound values for c′ can be obtained for decreasing manner tests. |
Keywords: | multiple-step loading; triaxial compresion test; damage model; rock |
Rights: | © 2009 IOS Press. This work is licensed under a creative commons license https://creativecommons.org/licenses/by-nc/3.0/ |
DOI: | 10.3233/978-1-60750-031-5-429 |
Appears in Collections: | Aurora harvest 3 Civil and Environmental Engineering publications |
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hdl_102512.pdf | Published version | 336.36 kB | Adobe PDF | View/Open |
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