A new type of pile used in frozen soil foundation
文献类型：期刊论文
| 作者 | Li, Ning1,2; Xu, Bin1 |
| 刊名 | COLD REGIONS SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2008-08-01 |
| 卷号 | 53期号:3页码:355-368 |
| 关键词 | Permafrost Convection and thermal exchange Pile with grooves Permafrost table Temperature field |
| ISSN号 | 0165-232X |
| DOI | 10.1016/j.coldregions.2007.10.005 |
| 通讯作者 | Li, Ning(ningli@xaut.edu.cn) |
| 英文摘要 | It is well known that there are three problems to be solved for pile foundations in the cold regions on the Qinghai-Tibet plateau. They are the tension force on the pile induced by the frost heaving surrounding soil, the negative frictional effect induced by foundation thawing, and the long refreezing period of the surrounding soil after the pile is cast with the thawed soil refrozen even for a long time. In this paper, a new pile is proposed to solve these problems. The new pile, made of concrete, is carved with grooves refilled with large-grained porous materials. With this new pile, soil around it can be cooled and the permafrost table can be raised by the convection of porous media under the natural temperature fluctuation. Also, the stress fields and the bearing capacity of this grooved pile are analyzed in order to study its reinforcing mechanism, on the basis of which, this paper suggests the principle and method for the design and construction of the new pile in the cold region on the Qinghai-Tibet Plateau. (C) 2007 Elsevier B. V. All rights reserved. |
| 收录类别 | SCI |
| WOS研究方向 | Engineering ; Geology |
| WOS类目 | Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000260040200011 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556096 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, Ning |
| 作者单位 | 1.Xian Univ Technol, Inst Geotech Engn, Xian 710048, Shannxi, Peoples R China 2.Chinese Acad Sci, CAREERI, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ning,Xu, Bin. A new type of pile used in frozen soil foundation[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2008,53(3):355-368. |
| APA | Li, Ning,&Xu, Bin.(2008).A new type of pile used in frozen soil foundation.COLD REGIONS SCIENCE AND TECHNOLOGY,53(3),355-368. |
| MLA | Li, Ning,et al."A new type of pile used in frozen soil foundation".COLD REGIONS SCIENCE AND TECHNOLOGY 53.3(2008):355-368. |
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来源：寒区旱区环境与工程研究所
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