Particle breakage and shape analysis of calcareous sand under consolidated-undrained triaxial shear
文献类型：期刊论文
| 作者 | Shen, Jianhua3; Wang, Xing1,4; Shan, Yi1,4; Cui, Jie1,4; Chen, Xiang2; Wang, Xinzhi3; Zhu, Changqi3 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 81期号:6页码:- |
| 关键词 | Calcareous sand Consolidated-undrained triaxial shear Effective confining pressure Particle breakage Particle shape |
| ISSN号 | 1435-9529 |
| 英文摘要 | To investigate the meso-fabric characteristics of calcareous sand (CS) under undrained shear conditions, multiple consolidated-undrained triaxial shear tests were conducted on CS under different effective confining pressures (sigma(3)'), and the particle gradations and shapes of CS before and after triaxial shear tests were measured using screening tests and particle shape scanning tests, respectively. According to the results, (I) the consolidated-undrained triaxial shear tests on CS can be regarded as a process of transforming from weakening frictional strength to reinforcing cohesive strength. (II) The relative breakage ratio (Br) and modified relative breakage index (Br*) of CS both increased in power function form with increasing sigma(3)'. The Br of CS was less than its Br* under the same sigma(3)'. The connection between the Br and plastic work of CS under undrained shear conditions was established. Splitting and abrasion were the main particle breakage patterns of CS during consolidated-undrained triaxial shear. (III) After consolidated-undrained triaxial shear tests, the particle shape of CS became increasingly regular. Due to the diversity of particle breakage patterns, the mean particle shape parameter of CS did not show any monotonic change with increasing sigma(3)'. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000794943600001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35163]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil Engineering, Guangzhou University, Guangzhou 510006, China 2.College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China 3.State Key Laboratory of Geotechnical Mechanics and Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 4.Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510405, China |
| 推荐引用方式 GB/T 7714 | Shen, Jianhua,Wang, Xing,Shan, Yi,et al. Particle breakage and shape analysis of calcareous sand under consolidated-undrained triaxial shear[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2022,81(6):-. |
| APA | Shen, Jianhua.,Wang, Xing.,Shan, Yi.,Cui, Jie.,Chen, Xiang.,...&Zhu, Changqi.(2022).Particle breakage and shape analysis of calcareous sand under consolidated-undrained triaxial shear.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,81(6),-. |
| MLA | Shen, Jianhua,et al."Particle breakage and shape analysis of calcareous sand under consolidated-undrained triaxial shear".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 81.6(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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