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| DOI | 10.1007/s11629-023-8244-x |
| Experimental and numerical interpretation on composite foundation consisting of soil-cement column within warm and ice-rich frozen soil | |
| 发表日期 | 2024 |
| ISSN | 1672-6316 |
| EISSN | 1993-0321 |
| 起始页码 | 21 |
| 结束页码 | 1 |
| 卷号 | 21期号:1 |
| 英文摘要 | Affected by climate warming and anthropogenic disturbances, the thermo-mechanical stability of warm and ice-rich frozen ground along the Qinghai-Tibet engineering corridor (QTEC) is continuously decreased, which may delay the construction of major projects in the future. In this study, based on chemical stabilization of warm and ice-rich frozen ground, the soil-cement column (SCC) for ground improvement was recommended to reinforce the foundations in warm and ice-rich permafrost regions. To explore the validity of countermeasures mentioned above, both the original foundation and the composite foundation consisting of SCC with soil temperature of -1.0 degrees C were prepared in the laboratory, and then the plate loading tests were carried out. The laboratory investigations indicated that the bearing capacity of composite foundation consisting of SCC was higher than that of original foundation, and the total deformation of original foundation was greater than that of composite foundation, meaning that overall stability of foundation with warm and ice-rich frozen soil can be improved by SCC installation. Meanwhile, a numerical model considering the interface interaction between frozen soil and SCC was established for interpretating the bearing mechanism of composite foundation. The numerical investigations revealed that the SCC within composite foundation was responsible for the more applied load, and the applied load can be delivered to deeper zone in depth due to the SCC installation, which was favorable for improving the bearing characteristic of composite foundation. The investigations provide the valuable guideline for the choice of engineering supporting techniques to major projects within the QTEC. |
| 英文关键词 | Chemical stabilization; Ground improvement; Composite foundation; Frozen soil engineering; Qinghai-Tibet engineering corridor |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:001152428500018 |
| 来源期刊 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/288935 |
| 作者单位 | Hebei University of Engineering; Chinese Academy of Sciences; Chinese Academy of Sciences; Northeast Forestry University - China |
| 推荐引用方式 GB/T 7714 | . Experimental and numerical interpretation on composite foundation consisting of soil-cement column within warm and ice-rich frozen soil[J],2024,21(1). |
| APA | (2024).Experimental and numerical interpretation on composite foundation consisting of soil-cement column within warm and ice-rich frozen soil.JOURNAL OF MOUNTAIN SCIENCE,21(1). |
| MLA | "Experimental and numerical interpretation on composite foundation consisting of soil-cement column within warm and ice-rich frozen soil".JOURNAL OF MOUNTAIN SCIENCE 21.1(2024). |
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