Evaluation of soil damage degree under freeze-thaw cycles through electrical measurements
文献类型：期刊论文
| 作者 | Yuan, Ganglie1; Che, Ailan1; Tang, Hua2 |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 293页码:13 |
| 关键词 | Freeze-thaw cycles Soil damage Electrical measurement Computed tomography scanning Damage factor |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2021.106297 |
| 英文摘要 | In permafrost regions, roads and soil slopes experience freeze-thaw cycles annually and the soil characteristics (such as strength and conductivity) change irreversibly. Several studies have been conducted on the evaluation of soil damage using soil mechanics principles and electrical measurements. Owing to the limitations of previous studies, such as low efficiency and the inapplicability of real-time testing for assessing damages, a real-time quantitative test method for assessing the damage degree of layered soil subjected to freeze-thaw cycles based on electrical measurements is proposed. An electrical measurement device was developed for testing the electrical parameters of multilayer soil. Combined with electrical measurements, freeze-thaw cycle tests were performed. The resistivity of each layer of soil under freeze-thaw cycles was determined. Additionally, microstructural parameters of the multilayered soil were determined through computed tomography to investigate the changes in the soil microstructure during freeze-thaw cycles. The porosity and pore distribution characteristics of the multilayered soil under freeze-thaw cycles were obtained using image processing methods, such as median filter and K-means clustering. As the number of freeze-thaw cycles increased, the soil porosity increased, and the pore structure became less complex. Based on the relationship between the soil resistivity and the microstructural parameters, the soil damage mechanism was described, and a damage factor was introduced in developing the model. Furthermore, the dynamic damage process of the multilayered soil under freeze-thaw cycles was evaluated using the damage model, and the settlement was used to verify the results. And the damage model can be applied to evaluate the damage state of soil in permafrost region |
| 资助项目 | National Key R&D Program of China[2018YFC1504504] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000696814500020 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27919]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Che, Ailan |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai Key Lab Digital Maintenance Bldg & Infra, 800 Dongchuan Rd, Shanghai 200240, 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 | Yuan, Ganglie,Che, Ailan,Tang, Hua. Evaluation of soil damage degree under freeze-thaw cycles through electrical measurements[J]. ENGINEERING GEOLOGY,2021,293:13. |
| APA | Yuan, Ganglie,Che, Ailan,&Tang, Hua.(2021).Evaluation of soil damage degree under freeze-thaw cycles through electrical measurements.ENGINEERING GEOLOGY,293,13. |
| MLA | Yuan, Ganglie,et al."Evaluation of soil damage degree under freeze-thaw cycles through electrical measurements".ENGINEERING GEOLOGY 293(2021):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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