NMR-based analysis of shear strength of weakly expansive clay in sodium chloride solution
文献类型：期刊论文
| 作者 | Yu, Haihao; Sun, De'an; Tian, Huihui |
| 刊名 | MAGNETIC RESONANCE IMAGING
 |
| 出版日期 | 2019 |
| 卷号 | 58页码:43995 |
| 关键词 | Nuclear magnetic resonance Weakly expansive clay Shear strength NaCl solution |
| ISSN号 | 0730-725X |
| DOI | 10.1016/j.mri.2019.01.002 |
| 英文摘要 | A series of direct shear and nuclear magnetic resonance (NMR) tests were performed on a compacted weakly expansive clay saturated by sodium chloride (NaCl) solutions with different concentrations to study the effect of NaCl solution on the shear strength and its mechanism. Results from the direct shear tests show that the shear strength decreases slightly with increasing the NaCl solution concentration when the concentration is less than 1.0 mol/L. The results of NMR tests show that the smaller transverse relaxation times (T-2) of specimens saturated by NaCl solutions with concentrations of 0.5 and 1.0 mol/L are less than that of the specimen saturated by deionized water. This means that the amount of smaller pores in the specimens saturated by deionized water is greater than that in specimens by NaCl solutions. That is, the specimen saturated by deionized water is denser than those by NaCl solutions under the same vertical pressure, and thus the shear strength of weakly expensive clay decreases with increasing the NaCl solution concentration. |
| WOS研究方向 | Radiology, Nuclear Medicine & Medical Imaging |
| 语种 | 英语 |
| WOS记录号 | WOS:000461412300002 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/14993]  |
| 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.Guilin Univ Technol, Lab Geomech & Geotech Engn, Guilin 541004, Peoples R China; 2.Shanghai Univ, Dept Civil Engn, Shanghai 200444, Peoples R China; 3.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Haihao,Sun, De'an,Tian, Huihui. NMR-based analysis of shear strength of weakly expansive clay in sodium chloride solution[J]. MAGNETIC RESONANCE IMAGING,2019,58:43995. |
| APA | Yu, Haihao,Sun, De'an,&Tian, Huihui.(2019).NMR-based analysis of shear strength of weakly expansive clay in sodium chloride solution.MAGNETIC RESONANCE IMAGING,58,43995. |
| MLA | Yu, Haihao,et al."NMR-based analysis of shear strength of weakly expansive clay in sodium chloride solution".MAGNETIC RESONANCE IMAGING 58(2019):43995. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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