Experimental Study of Mechanical Behavior of Gneiss Considering the Orientation of Schistosity under True Triaxial Compression
文献类型：期刊论文
| 作者 | Liu, Xufeng1; Feng, Xia-Ting2,3 ; Zhou, Yangyi1
|
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2020-11-01 |
| 卷号 | 20期号:11页码:10 |
| 关键词 | Orientation of schistosity Anisotropic mechanical behavior Loading angle True triaxial compression |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/(ASCE)GM.1943-5622.0001838 |
| 英文摘要 | Rocks with a layered structure (bedding or foliation) usually exhibit different levels of anisotropy in terms of deformation, strength, and failure mode under multiaxial stress conditions. This anisotropy is influenced by the spatial relationship between the internal layered structure and the principal stresses; however, relatively few experimental studies have been conducted due to various limitations, resulting in insufficient knowledge of the failure mechanism of layered rocks. A series of true triaxial compression tests for a gneiss were carried out considering the orientation of schistosity. The results show that the orientation of schistosity has a significant impact on the strength and failure of this gneiss. More specifically, under the same intermediate principal stress sigma(2), the strength of specimens increases as the angle (omega) between the strike of schistosity and the direction of sigma(2) increases. The greater the angle., the more sensitive the strength varies with sigma(2). When sigma(2) is low, the schistosity plane acts as a weak plane to control the failure of the specimen, and the main failure plane is parallel to the schistosity. As sigma(2) increases, the weakening effect of schistosity decreases, and the influence of sigma(2) on the failure is enhanced. In this case, the failure of cutting through the rock matrix more commonly occurs, and the failure plane dips toward sigma(3) and strikes parallel to sigma(2). (C) 2020 American Society of Civil Engineers. |
| 资助项目 | Chinese Natural Science Foundation[51709043] ; 111 Project[B17009] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000618635500006 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25698]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Feng, Xia-Ting |
| 作者单位 | 1.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech IRSM, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Northeastern Univ, Key Lab Minist Educ Safe Min Deep Met Mines, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xufeng,Feng, Xia-Ting,Zhou, Yangyi. Experimental Study of Mechanical Behavior of Gneiss Considering the Orientation of Schistosity under True Triaxial Compression[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2020,20(11):10. |
| APA | Liu, Xufeng,Feng, Xia-Ting,&Zhou, Yangyi.(2020).Experimental Study of Mechanical Behavior of Gneiss Considering the Orientation of Schistosity under True Triaxial Compression.INTERNATIONAL JOURNAL OF GEOMECHANICS,20(11),10. |
| MLA | Liu, Xufeng,et al."Experimental Study of Mechanical Behavior of Gneiss Considering the Orientation of Schistosity under True Triaxial Compression".INTERNATIONAL JOURNAL OF GEOMECHANICS 20.11(2020):10. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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