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Experimental and theoretical study of the anisotropic properties of shale
文献类型：期刊论文
| 作者 | Heng, Shuai2; Guo, Yingtong2; Yang, Chunhe2; Daemen, Jack J. K.1; Li, Zhi2 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2015 |
| 卷号 | 74页码:58-68 |
| 关键词 | Anisotropy Bedding planes Direct shear test Shear strength Failure mechanism Shear stress concentration factor |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijmms.2015.01.003 |
| 英文摘要 | The effect of bedding plane orientations on shear strength and failure mechanisms of shale is investigated, with an emphasis on the shear parameters of the bedding planes. This study is based on direct shear tests conducted on directional shale samples obtained from formations which exhibit well-developed stratification. The tested cylindrical specimens were prepared by coring at 30 degrees intervals from the direction of the bedding planes. The results indicate that the anisotropy of the shear strength of shale can be readily observed due to the anisotropic effects of bedding plane orientation and normal stress. The shear parameters, such as strength, cohesion and internal friction angle reach their maximum and the minimum values at beta=60 degrees and beta=0 degrees, respectively, where beta is the angle between the bedding planes and the coring orientation, which is also the direction of normal stress during the laboratory tests It is demonstrated that the bedding planes are weak not only with regards to cementing strength, but also with regards to friction. Three different shear failure modes were built up depending on the shearing angle beta : (1) sliding failure across the bedding planes, (2) sliding failure along the bedding planes and (3) sliding failure across the bedding planes combined with tensile splitting along the bedding planes. An expression of the shear stress concentration factor of the direct shear model is derived to evaluate the anisotropy of shear strength. (C) 2015 Elsevier Ltd. All rights reserved, |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000349983700008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3686]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Univ Nevada, Mackay Sch Earth Sci & Engn 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; |
| 推荐引用方式 GB/T 7714 | Heng, Shuai,Guo, Yingtong,Yang, Chunhe,et al. Experimental and theoretical study of the anisotropic properties of shale[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2015,74:58-68. |
| APA | Heng, Shuai,Guo, Yingtong,Yang, Chunhe,Daemen, Jack J. K.,&Li, Zhi.(2015).Experimental and theoretical study of the anisotropic properties of shale.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,74,58-68. |
| MLA | Heng, Shuai,et al."Experimental and theoretical study of the anisotropic properties of shale".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 74(2015):58-68. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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