气候变化领域集成服务门户(CCPortal): Necessity of cooling methods for transportation infrastructure construction in permafrost regions of Qinghai-Tibet Plateau

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DOI	10.1007/s10064-021-02349-5
	Necessity of cooling methods for transportation infrastructure construction in permafrost regions of Qinghai-Tibet Plateau
	Zhang, Saize; Niu, Fujun; Wang, Shi; Wang, Jinchang; Sun, Yongning
通讯作者	Niu, FJ (通讯作者)，Chinese Acad Sci, State Key Lab Frozen Soil Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1435-9529
EISSN	1435-9537
起始页码	6705
结束页码	6723
卷号	80 期号:9
英文摘要	A key issue in ensuring the stability of transportation infrastructure in permafrost regions of the Qinghai-Tibet Plateau (QTP) is to prevent the degradation of the underlying permafrost. Therefore, several cooling methods (such as sun sheds, duct-ventilated embankment, thermosyphon, crushed-rock embankment, and dry bridge) have been developed to stabilize the underlying permafrost and mitigate thaw settlement. In this study, considering climate warming and engineering geologic conditions, a necessity model of cooling methods for transportation infrastructure was proposed. The application features of cooling methods along the Qinghai-Tibet Railway (QTR) in permafrost regions were systematically and comprehensively summarized to validate the model accuracy. The results indicated that the model has satisfactory performance and can determine the necessity index (NI) of cooling methods in a certain area. Based on the NI values, convenient application criteria for cooling methods were proposed. Specifically, the transportation infrastructure can be constructed without cooling methods in regions where the NI is less than 1.088. The results indicated that approximately 97% of the regions (NI < 1.088) in the study area are located in talik and low-temperature and ice-poor permafrost regions. Therefore, NI = 1.088 was determined to be a reasonable boundary value for deciding whether to apply cooling methods. Finally, the reliability of the criteria was validated by analyzing the settlement data of six typical embankment sections. This model can improve the reasonableness of the decision-making process of cooling method selection during the design and construction of transportation infrastructure, not only in the Qinghai-Tibet engineering corridor but also in a wide region of the QTP.
关键词	THERMAL REGIMES ROAD EMBANKMENT HIGHWAY RAILWAY DEGRADATION
英文关键词	Transportation infrastructure; Cooling method; Permafrost regions; Application sections; Necessity model
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS记录号	WOS:000669768500001
来源期刊	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253707
作者单位	[Zhang, Saize; Niu, Fujun] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Zhang, Saize] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Shi; Wang, Jinchang; Sun, Yongning] Qinghai Tibet Grp Co Ltd China Railway, Xining 810000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Saize,Niu, Fujun,Wang, Shi,et al. Necessity of cooling methods for transportation infrastructure construction in permafrost regions of Qinghai-Tibet Plateau[J]. 中国科学院西北生态环境资源研究院,2021,80(9).
APA	Zhang, Saize,Niu, Fujun,Wang, Shi,Wang, Jinchang,&Sun, Yongning.(2021).Necessity of cooling methods for transportation infrastructure construction in permafrost regions of Qinghai-Tibet Plateau.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,80(9).
MLA	Zhang, Saize,et al."Necessity of cooling methods for transportation infrastructure construction in permafrost regions of Qinghai-Tibet Plateau".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 80.9(2021).