The California Bearing Ratio and Pore Structure Characteristics of Weakly Expansive Soil in Frozen Areas
文献类型：期刊论文
| 作者 | Li, Tianguo1,2; Kong, Lingwei1,2; Liu, Bingheng1,2 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2020-11-01 |
| 卷号 | 10期号:21页码:22 |
| 关键词 | compaction characteristics CBR nuclear magnetic resonance freeze– thaw cycles |
| DOI | 10.3390/app10217576 |
| 英文摘要 | The California Bearing Ratio (CBR) of weakly expansive soil is specially relevant to its expansibility. The mechanisms affecting the bearing strength, in terms of the CBR, of weakly expansive soil that could be used as embankments filler are worth studying. In the present study, the effects of compaction energy on the compaction characteristics and CBR value were investigated. Additionally, the pore size distributions of soils with different compaction degrees were studied with nuclear magnetic resonance (NMR), and the effect of freeze-thaw cycles on the pore size distribution of soils with different compaction degrees was considered. Subsequently, the mechanisms influencing the CBR were analyzed at both the macroscale and microscale. A linear relationship between the CBR value and compaction degree was determined, characterizing the gradual variation of expansive soils with different moisture contents. With increasing freeze-thaw cycles, the volume of micropores decreased and mesopores increased, causing the CBR value to decrease. The expansion was a dominant factor for the CBR values. The CBR values rose with an increase in micropores and decreased with an increase in pore volume. It was considered that the tested weakly expansive soil could be used as an embankment filler in frozen areas. |
| 资助项目 | National Key R&D Program of China[2019YFC1509901] |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000588988400001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25097]  |
| 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, Sch Engn 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 |
| 推荐引用方式 GB/T 7714 | Li, Tianguo,Kong, Lingwei,Liu, Bingheng. The California Bearing Ratio and Pore Structure Characteristics of Weakly Expansive Soil in Frozen Areas[J]. APPLIED SCIENCES-BASEL,2020,10(21):22. |
| APA | Li, Tianguo,Kong, Lingwei,&Liu, Bingheng.(2020).The California Bearing Ratio and Pore Structure Characteristics of Weakly Expansive Soil in Frozen Areas.APPLIED SCIENCES-BASEL,10(21),22. |
| MLA | Li, Tianguo,et al."The California Bearing Ratio and Pore Structure Characteristics of Weakly Expansive Soil in Frozen Areas".APPLIED SCIENCES-BASEL 10.21(2020):22. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。