Assessment of cooling effect of the crushed rock embankment based on catastrophe progression method

doi:10.13722/j.cnki.jrme.2018.1273

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	Assessment of cooling effect of the crushed rock embankment based on catastrophe progression method
	Zhao, Hongting 1,2; Wu, Qingbai 2; Zhang, Zhongqiong 2; Hou, Yandong 3
刊名	Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering
	2019-08-01
卷号	38 期号:8 页码:1686-1695
关键词	Buildings Cooling Embankments Permafrost Revetments Thermal Engineering Catastrophe progression method Comprehensive evaluation model Cooling effects Crushed rock embankment Crushed rock revetment Hierarchical structures Internal and external factors Subgrade engineering
ISSN号	10006915
DOI	10.13722/j.cnki.jrme.2018.1273
英文摘要	In order to comprehensively assess the cooling effect of the crushed rock embankment on permafrost, different embankments such as the open-system crushed rock thickened revetment, the closed-system crushed rock revetment, the open-system and closed-system crushed rock basement and the U-shaped crushed rock embankments in the Beiluhe test section of the Qinghai-Tibet Railway were investigated. Selecting thirteen factors as the bottom evaluation indices from internal and external factors of permafrost, the cooling effect of the crushed rock embankment was evaluated by catastrophe progression method, and a comprehensive evaluation model which consists of four hierarchical structures was proposed. The results show that the evaluation results are basically line with the measured results and the calculated results can accurately reflect the strength of the cooling effect of the crushed rock embankment. The thickened revetment of the crushed rock slope is susceptible to the thermal disturbance of the engineering at the initial operation period of the engineering measures and presents a weak cooling effect. When the change of the ground temperature reaches a relatively stable state, the cooling effect shows different due to the different cooling mechanisms of different crushed rock embankments. The U-shaped crushed rock embankment with an evaluation value more than 0.97 has strongest cooling effect, in turn followed by the open-system crushed rock basement embankment, the closed-system crushed rock basement embankment, the crushed rock thickened revetment and the closed-system crushed rock revetment. © 2019, Science Press. All right reserved.
语种	中文
出版者	Academia Sinica
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114705]
专题	土木工程学院
作者单位	1.University of Chinese Academy of Sciences, Beijing; 100049, China; 2.State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou; Gansu; 730000, China; 3.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; Gansu; 730050, China
推荐引用方式 GB/T 7714	Zhao, Hongting,Wu, Qingbai,Zhang, Zhongqiong,et al. Assessment of cooling effect of the crushed rock embankment based on catastrophe progression method[J]. Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering,2019,38(8):1686-1695.
APA	Zhao, Hongting,Wu, Qingbai,Zhang, Zhongqiong,&Hou, Yandong.(2019).Assessment of cooling effect of the crushed rock embankment based on catastrophe progression method.Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering,38(8),1686-1695.
MLA	Zhao, Hongting,et al."Assessment of cooling effect of the crushed rock embankment based on catastrophe progression method".Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering 38.8(2019):1686-1695.