气候变化领域集成服务门户(CCPortal): Strengthening effect of crushed rock revetment and thermosyphons in a traditional embankment in permafrost regions under warming climate

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DOI	10.1016/j.accre.2021.01.002
	Strengthening effect of crushed rock revetment and thermosyphons in a traditional embankment in permafrost regions under warming climate
	Mei Q.-H.; Chen J.; Wang J.-C.; Hou X.; Zhao J.-Y.; Zhang S.-H.; Dang H.-M.; Gao J.-W.
发表日期	2021
ISSN	1674-9278
起始页码	66
结束页码	75
卷号	12 期号:1
英文摘要	The embankment of the Qinghai–Tibet Railway (QTR) has been experiencing severe problems due to permafrost degradation, especially in warm and ice-rich permafrost regions. Based on ground temperature and deformation data of the embankment at location K1497 + 150 of the QTR in 2006–2018, the thermal regime and deformation process were analysed. The results showed that 1) the degradation rate of permafrost under the embankment was faster than that under the natural site without engineering construction, and 2) the deformation rate of the embankment had exceeded the safety range for the QTR embankment before adopting mitigative measures. In addition, this study evaluated the cooling effect on the underlying permafrost and working mechanism of two strengthening measures. Two measures, crushed rock revetment (CRR) and thermosyphons, were adopted to protect the underlying permafrost from continual degradation. The individual cooling effect of the CRR was not as good as that of the thermosyphons. However, the combination of the two could enhance the protective effects of each on the underlying permafrost, effectively cooling the permafrost and improving the stability of the embankment. © 2021 National Climate Center (China Meteorological Administration)
英文关键词	Climate warming; Crushed rock revetment (CRR); Permafrost; Settlement; Thermosyphons
来源期刊	Advances in Climate Change Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236502
作者单位	Beiluhe Observation and Research Station of Frozen Soil Engineering and Environment, State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environmental and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; University of Chinese Academy of Sciences, Beijing, 100049, China; China Railway Qinghai-Tibet Group Co. Ltd, Xining, 810007, China
推荐引用方式 GB/T 7714	Mei Q.-H.,Chen J.,Wang J.-C.,et al. Strengthening effect of crushed rock revetment and thermosyphons in a traditional embankment in permafrost regions under warming climate[J],2021,12(1).
APA	Mei Q.-H..,Chen J..,Wang J.-C..,Hou X..,Zhao J.-Y..,...&Gao J.-W..(2021).Strengthening effect of crushed rock revetment and thermosyphons in a traditional embankment in permafrost regions under warming climate.Advances in Climate Change Research,12(1).
MLA	Mei Q.-H.,et al."Strengthening effect of crushed rock revetment and thermosyphons in a traditional embankment in permafrost regions under warming climate".Advances in Climate Change Research 12.1(2021).