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

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

IR > 土木工程学院

	Analysis of the Embankment Stability in Permafrost Regions based on Double Strength Reduction Finite Element Method
	He, B.B.1,2; Sheng, Y.1; Chou, Y.L.3,4 ; Hu, X.Y.1,2; Feng, Y.L.5
	2018-11-06
会议名称	2018 International Conference on Civil and Hydraulic Engineering, IConCHE 2018
会议录名称	IOP Conference Series: Earth and Environmental Science
卷号	189
期号	2
会议日期	November 23, 2018 - November 25, 2018
会议地点	Qingdao, China
出版者	Institute of Physics Publishing
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.
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
DOI	10.1088/1755-1315/189/2/022022
收录类别	EI
语种	英语
EI入藏号	20184706119555
EI主题词	Finite element method
ISSN	17551307
来源库	Compendex
分类代码	405 Construction Equipment and Methods; Surveying - 407.1 Maritime Structures - 483 Soil Mechanics and Foundations - 632.1 Hydraulics - 921.6 Numerical Methods
引用统计	无
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/118155
专题	土木工程学院
作者单位	1.State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou; 730000, China; 2.University of Chinese Academy of Sciences, Beijing; 100049, China; 3.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou, Gansu; 730050, China; 4.Northwest Center for Disaster Mitigation in Civil Engineering, Ministry of Education, Lanzhou University of Technology, Lanzhou, Gansu; 730050, China; 5.School of Civil Engineering, Central South University, Changsha; 410075, 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]:Institute of Physics Publishing,2018.