IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2014  > Vol11 No.6
Effects of Heat Softening on Initiation of Landslides
Xiong Chuan-xiang1,2; Lu Xiao-bing3; Huang Wei-da4; Wang Cheng-hua5
Corresponding AuthorXIONG Chuan-xiang
2014-11-01
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume11Issue:6Pages:1571-1578
SubtypeArticle
AbstractEffects of heat softening on the initiation of slide surface (shear banding) in clayey slopes during fast deformation were discussed. Controlling equations considering heat, pore pressure and mechanical movement were presented. By perturbation method, the instability condition of localized zone (i.e. criterion for initiation of shear banding) for thermal related soils, such as clayey slope, was obtained. It is shown that slide surface initiates once the thermal-softening effects overcome the strain-hardening effects whether it is adiabatic or not. Without strain hardening effects, strain rate hardening obviously plays a role in initiation of shear band. During initiating process, heat is trapped inside the shear band, which leads rapidly to a pore pressure increase and fast loss of strength. The localized shear strain is concentrated in a narrow zone with a width of several centimeters at most and increases fast. This zone forms the sliding surface. Temperature can increase more than 2 degrees C, pore pressure can increase 160% in about 0.1s inside this zone. These changes cause the fast decrease in friction-coefficient by about 36% over the initial value. That is how shear band initiated and developed in clayey slopes.
KeywordLandslide Thermo-effect Slide Surface Initiation
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-013-2769-3
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordCATASTROPHIC LANDSLIDES ; STRENGTH ; SOIL
Language英语
WOS SubjectEnvironmental Sciences
WOS IDWOS:000345621100019
Funding OrganizationNational Natural Science Foundation of China(11272314 ; Specialized Research Fund for the Doctoral Program of Higher Education of China(20133514110004) ; Chinese Ministry of Transport(201331849A130) ; 51239010)
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7425
CollectionJournal of Mountain Science_Journal of Mountain Science-2014_Vol11 No.6
Affiliation1.Fuzhou Univ, Sch Environm & Resources, Fuzhou 350108, Peoples R China
2.Fujian Prov Key Lab Remote Sensing Soil Eros & Di, Fuzhou 350108, Peoples R China
3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
4.Fujian Acad Bldg Res, Fuzhou 350025, Peoples R China
5.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Xiong Chuan-xiang,Lu Xiao-bing,Huang Wei-da,et al. Effects of Heat Softening on Initiation of Landslides[J]. JOURNAL OF MOUNTAIN SCIENCE,2014,11(6):1571-1578.
APA Xiong Chuan-xiang,Lu Xiao-bing,Huang Wei-da,&Wang Cheng-hua.(2014).Effects of Heat Softening on Initiation of Landslides.JOURNAL OF MOUNTAIN SCIENCE,11(6),1571-1578.
MLA Xiong Chuan-xiang,et al."Effects of Heat Softening on Initiation of Landslides".JOURNAL OF MOUNTAIN SCIENCE 11.6(2014):1571-1578.
Files in This Item:
File Name/Size DocType Version Access License
Effects of Heat Soft(793KB) 开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xiong Chuan-xiang]'s Articles
[Lu Xiao-bing]'s Articles
[Huang Wei-da]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xiong Chuan-xiang]'s Articles
[Lu Xiao-bing]'s Articles
[Huang Wei-da]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xiong Chuan-xiang]'s Articles
[Lu Xiao-bing]'s Articles
[Huang Wei-da]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Effects of Heat Softening on Initiation of Landslides.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.