Shear Properties of Fissured Clay with Different Fissure Orientations under Plane Strain Conditions
文献类型：期刊论文
| 作者 | Gao, Zhiao1,2; Kong, Lingwei1,2; Liu, Bingheng3; Xu, Chuanyong1,2; Lin, Huanwen1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 24期号:7页码:12 |
| 关键词 | Fissured clay Fissure inclination angle Plane strain Strength criterion Shear band |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/IJGNAI.GMENG-9849 |
| 英文摘要 | An important characteristic of some clays is their abundance of fissures. In the case study reported here, to investigate how the fissure inclination angle affects the deformation and strength of fissured clay, samples of undisturbed fissured clay with different inclination angles of its inherent fissures (0 degrees, 45 degrees, and 90 degrees) were subjected to consolidated undrained plane-strain shear tests using a true triaxial apparatus. Moreover, consolidated undrained triaxial tests were carried out on samples with the same inclination angles for comparison. The results showed that compared with the triaxial state, the degree of fissure influence on samples with different fissure angles is different under plane strain, which weakens the influence of the fissure inclination angle on the soil's mechanical behavior. Under the designed consolidation pressures, the peak stress of the 45 degrees fissured soil samples was the smallest, with a stress-strain curve that exhibits strain softening. The 0 degrees fissured soil samples exhibited the highest peak stress, with a stress-strain curve that exhibits strain hardening. The 90 degrees fissured soil samples fell in between, with a stress-strain curve that exhibits a relatively stable trend. The intermediate principal stress coefficient b-value showed different trends at different fissure angles, which also reflects the influence of fissure dip angle. According to the von Mises and Lade-Duncan strength criteria, the generalized plane-strain criterion for fissured soil was obtained. The dip angle of the shear band was calculated from Mohr-Coulomb theory, and the difference between the calculated and measured dip angles was found to be small. |
| 资助项目 | National Key Research and Development Program of China[2019YFC1509901] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001223168100007 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41554]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Kong, Lingwei |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Changzhou Inst Technol, Sch Civil Engn & Architecture, Changzhou 213032, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Zhiao,Kong, Lingwei,Liu, Bingheng,et al. Shear Properties of Fissured Clay with Different Fissure Orientations under Plane Strain Conditions[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2024,24(7):12. |
| APA | Gao, Zhiao,Kong, Lingwei,Liu, Bingheng,Xu, Chuanyong,&Lin, Huanwen.(2024).Shear Properties of Fissured Clay with Different Fissure Orientations under Plane Strain Conditions.INTERNATIONAL JOURNAL OF GEOMECHANICS,24(7),12. |
| MLA | Gao, Zhiao,et al."Shear Properties of Fissured Clay with Different Fissure Orientations under Plane Strain Conditions".INTERNATIONAL JOURNAL OF GEOMECHANICS 24.7(2024):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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