气候变化领域集成服务门户(CCPortal): Study on long-term stability of Qinghai-Tibet Railway embankment

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DOI	10.1016/j.coldregions.2009.02.003
	Study on long-term stability of Qinghai-Tibet Railway embankment
	Li, Shuangyang; Lai, Yuanming; Zhang, Minyi; Dong, Yuanhong
发表日期	2009
ISSN	0165-232X
起始页码	139
结束页码	147
卷号	57 期号:2-3
英文摘要	In order to predict long-term stability of Qinghai-Tibet Railway (QTR) embankment, a moisture, heat and creep couple model is deduced on the basis of principal theories of numerical heat transfer, physics of frozen soil, frozen soil mechanics and theology of frozen soil. And in this model. the moisture and temperature field are interacted with each other, the parameters of frozen soil change with soil temperature variation and an in-situ creep equation of frozen soil is also included. Meanwhile, a finite element program is written. Then, the long-term stability of the embankment is studied in detail. Through comparing with observation data, it is found that the proposed analytical model is correct and reasonable, thus it can well describe and predict the long-term stability problem of the QTR embankment. Additionally, it is a reference to analyze the deformation problems of other buildings in permafrost regions. (C) 2009 Elsevier B.V. All rights reserved.
英文关键词	Qinghai-Tibet Railway; Embankment; Long-term stability; Mathematical model; Creep
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS关键词	MODEL
WOS记录号	WOS:000267153300009
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239531
作者单位	[Li, Shuangyang; Lai, Yuanming; Zhang, Minyi; Dong, Yuanhong] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Shuangyang,Lai, Yuanming,Zhang, Minyi,et al. Study on long-term stability of Qinghai-Tibet Railway embankment[J],2009,57(2-3).
APA	Li, Shuangyang,Lai, Yuanming,Zhang, Minyi,&Dong, Yuanhong.(2009).Study on long-term stability of Qinghai-Tibet Railway embankment.COLD REGIONS SCIENCE AND TECHNOLOGY,57(2-3).
MLA	Li, Shuangyang,et al."Study on long-term stability of Qinghai-Tibet Railway embankment".COLD REGIONS SCIENCE AND TECHNOLOGY 57.2-3(2009).