Analysis of the Embankment Stability in Permafrost Regions based on Double Strength Reduction Finite Element Method

doi:10.1088/1755-1315/189/2/022022

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	Analysis of the Embankment Stability in Permafrost Regions based on Double Strength Reduction Finite Element Method
	He, B.B.2,3; Sheng, Y.2; Chou, Y.L.4,5; Hu, X.Y.2,3; Feng, Y.L.1
	2018-11-06
会议日期	November 23, 2018 - November 25, 2018
会议地点	Qingdao, China
关键词	Embankments Hydraulic structures Hydraulics Permafrost Shore protection Thawing Critical length Embankment in permafrost region Embankment stability Longitudinal cracks Permafrost region Strength reduction finite element method Thaw bulb
卷号	189
期号	2
DOI	10.1088/1755-1315/189/2/022022
英文摘要	In order to study the embankment stability in permafrost regions, the vertical deepening and horizontal extension of the thaw bulb under the embankment in permafrost regions have been calculated and analyzed based on the double strength reduction finite element method. The vertical depth of the thaw bulb has less impact on the location of longitudinal cracks, and greater impact on the size of cracks on the embankment surface. Moreover, the deeper the vertical depth of the thaw bulb is, the larger the size of cracks becomes. The horizontal extension of the thaw bulb not only impacts on the location of longitudinal cracks on the embankment surface, but also impacts on the size of cracks. There is a critical length for the horizontal extension of the thaw bulb, where the probability of longitudinal cracks is the greatest. When the length is smaller than the critical length, the probability of longitudinal cracks increases with the length increasing; when the length is greater than the critical length, there will be no longitudinal cracks, but the whole embankment tilts to the sunny slope. © Published under licence by IOP Publishing Ltd.
会议录	IOP Conference Series: Earth and Environmental Science
会议录出版者	Institute of Physics Publishing
语种	英语
ISSN号	17551307
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/118155]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Central South University, Changsha; 410075, China 2.State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou; 730000, China; 3.University of Chinese Academy of Sciences, Beijing; 100049, China; 4.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou, Gansu; 730050, China; 5.Northwest Center for Disaster Mitigation in Civil Engineering, Ministry of Education, Lanzhou University of Technology, Lanzhou, Gansu; 730050, China;
推荐引用方式 GB/T 7714	He, B.B.,Sheng, Y.,Chou, Y.L.,et al. Analysis of the Embankment Stability in Permafrost Regions based on Double Strength Reduction Finite Element Method[C]. 见:. Qingdao, China. November 23, 2018 - November 25, 2018.