Potential failure analysis of thawing-pipeline interaction at fault crossing in permafrost
文献类型：期刊论文
| 作者 | Wei, Xiaochen1,2; Niu, Zhiyong1,3; Li, Qi1 ; Ma, Jianli1,3
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| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2018 |
| 卷号 | 106页码:31-40 |
| 关键词 | Buried pipeline Pipeline-soil structure Thermal interaction TWA coupling Fault slippage |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2017.12.011 |
| 英文摘要 | Fault slippage threatens the structural integrity of buried pipelines. In this work, we adopted a 3D thermo-hydro-mechanical coupling numerical model for investigation of a warm steel pipeline crossing active tectonic fault in permafrost, focusing on two pipeline-soil interactions: fault slippage in the course of the thawing of the permafrost and pipeline mechanical behavior. Effects of pipeline fluid temperature, thawed soil permeability as well as faulting regime to longitudinal strain along the pipeline were examined. This study shows that the relatively warm pipeline heats the surrounding soil-ice bonded permafrost, thawing of the permafrost leads to diffusion of the pore fluid surrounding the warm pipeline, and the accumulated pore water near the impermeable freezing front could cause a drastic pore pressure change, which would affect the destabilization of previously stable faults in critically stressed regime. The fault slippage and the corresponding longitudinal strain along the pipeline increase with pipeline fluid temperature and thawed soil permeability, while a relatively larger longitudinal strain takes place in the strike-slip faulting regime. |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000427343900003 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4243]  |
| 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.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn; 2.Southwest Petr Univ, Sch Geosci & Technol ; 3.Univ Chinese Acad Sci |
| 推荐引用方式 GB/T 7714 | Wei, Xiaochen,Niu, Zhiyong,Li, Qi,et al. Potential failure analysis of thawing-pipeline interaction at fault crossing in permafrost[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2018,106:31-40. |
| APA | Wei, Xiaochen,Niu, Zhiyong,Li, Qi,&Ma, Jianli.(2018).Potential failure analysis of thawing-pipeline interaction at fault crossing in permafrost.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,106,31-40. |
| MLA | Wei, Xiaochen,et al."Potential failure analysis of thawing-pipeline interaction at fault crossing in permafrost".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 106(2018):31-40. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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