Laboratory investigation on strengthening behavior of frozen China standard sand
文献类型：期刊论文
| 作者 | Cai, Cong1; Ma, Wei1; Zhou, Zhiwei1; Mu, Yanhu1; Zhao, Shuping2,3; Chen, Dun1; Liao, Mengke4 |
| 刊名 | ACTA GEOTECHNICA
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 14期号:1页码:179-192 |
| ISSN号 | 1861-1125 |
| 关键词 | CT scanning test Frozen standard sand Pressure melting Recrystallization Strengthening behavior Triaxial cyclic loading test |
| DOI | 10.1007/s11440-018-0648-3 |
| 通讯作者 | Zhao, Shuping(shuping@njnu.edu.cn) |
| 英文摘要 | In this paper, a series of triaxial cyclic loading-unloading (L-U-C), triaxial cyclic loading-unloading-holding (L-U-H-C) and triaxial cyclic stress relaxation tests (L-R-C) were performed for frozen China standard sand (FCSS) under laboratory conditions varying with confining pressure, temperature and holding time. A composite system synchronizing the real-time computed tomography (CT) device and the triaxial testing device was used to explore the internal structure change of FCSS during L-U-H-C. The strengthening behavior was clearly observed by comparing the L-U-C and L-U-H-C tests. While this behavior is generally caused by particle compaction as occurred in common soil, pressure melting of ice crystal and recrystallization followed may additionally contribute to strengthening behavior of frozen soil. The increase in mean CT number during the holding stage further confirms the effects of pressure melting of ice crystal and recrystallization on the strengthening of FCSS from an internal structure aspect. |
| 收录类别 | SCI |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Geological |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000457431400011 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558172 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Shuping |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China 2.Nanjing Normal Univ, Key Lab Visual Geog Environm, Minist Educ, Nanjing 210023, Jiangsu, Peoples R China 3.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China 4.State Grid Xinjiang Econ Res Inst, Urumqi 830001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Cong,Ma, Wei,Zhou, Zhiwei,et al. Laboratory investigation on strengthening behavior of frozen China standard sand[J]. ACTA GEOTECHNICA,2019,14(1):179-192. |
| APA | Cai, Cong.,Ma, Wei.,Zhou, Zhiwei.,Mu, Yanhu.,Zhao, Shuping.,...&Liao, Mengke.(2019).Laboratory investigation on strengthening behavior of frozen China standard sand.ACTA GEOTECHNICA,14(1),179-192. |
| MLA | Cai, Cong,et al."Laboratory investigation on strengthening behavior of frozen China standard sand".ACTA GEOTECHNICA 14.1(2019):179-192. |
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来源：寒区旱区环境与工程研究所
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