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STABILITY ANALYSIS OF UNFAVOURABLE GEOLOGICAL BODIES IN A POST-EARTHQUAKE AREA: A CASE STUDY IN GENGDA TOWNSHIP CHINA
Zhong, W.1,2; He, N.3,4; Mei, Z.5; Khan, M. A.6
Corresponding AuthorHe, N.(hn61886@163.com)
2019
Source PublicationAPPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH
ISSN1589-1623
Volume17Issue:4Pages:7807-7819
AbstractOn 12 May 2008, a devastating mega-earthquake of magnitude 8.0 struck the Wenchuan area, northwestern Sichuan Province, China Following this earthquake event, many areas in the affected areas were susceptible to geological disasters, such as debris flows, landslides and other secondary disasters. To better understand the mechanism of the formation processes of geological disasters, and to reduce the economic loss caused by the disasters, a comprehensive analysis is required. With the aim of obtaining the characteristics of unfavourable geological bodies, and analysing their stability, we choose the Gengda Township as an example (there are many unfavourable geological bodies distributed in this area, including landslides and deformation bodies). Field investigations and computational models are employed to analyse the stability of the unfavourable geological bodies. Through preliminary analysis and model calculation, the following conclusions can be drawn: under natural conditions, the stability factor of the landslide ranges from about 1.02-1.03, which means that the landslide is in a basically stable or less stable condition. Under the effect of continuous heavy rainfall, the stability factor of the landslide will be significantly reduced, and the corresponding value ranges from 0.9-0.96, which signifies that the landslide is in an unstable condition. For No 1 and No 2 deformation bodies (named by local inhabitants), the stability varied from less stable to unstable, and basically stable to unstable, respectively. On the basis of the results of the calculation, some countermeasures are proposed to mitigate the effects of these disasters probably caused by geological bodies.
Keywordcase study stability model calculation safety factor transfer coefficient method
DOI10.15666/aeer/1704_78077819
Indexed BySCI
WOS KeywordDEBRIS FLOWS
Language英语
Funding ProjectNational Natural Science Foundation of China[41302284] ; National Natural Science Foundation of China[41661144028] ; national Key R&D Program of China[2018YFC1505205] ; doctoral fund of Henan Polytechnic University[B2015-58]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEcology ; Environmental Sciences
WOS IDWOS:000478066700041
Funding OrganizationNational Natural Science Foundation of China ; national Key R&D Program of China ; doctoral fund of Henan Polytechnic University
PublisherCORVINUS UNIV BUDAPEST
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26782
Collection山地灾害与地表过程重点实验室
Corresponding AuthorHe, N.
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
3.Henan Polytech Univ, Sch Civil Engn, Jiaozuo 454000, Henan, Peoples R China
4.Int Joint Res Lab Henan Prov Underground Space De, Jiaozuo 454000, Henan, Peoples R China
5.Henan Coll Ind & Informat Technol, Jiaozuo 454003, Henan, Peoples R China
6.Karakoram Int Univ, Gilgit Baltistan, Pakistan
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Zhong, W.,He, N.,Mei, Z.,et al. STABILITY ANALYSIS OF UNFAVOURABLE GEOLOGICAL BODIES IN A POST-EARTHQUAKE AREA: A CASE STUDY IN GENGDA TOWNSHIP CHINA[J]. APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH,2019,17(4):7807-7819.
APA Zhong, W.,He, N.,Mei, Z.,&Khan, M. A..(2019).STABILITY ANALYSIS OF UNFAVOURABLE GEOLOGICAL BODIES IN A POST-EARTHQUAKE AREA: A CASE STUDY IN GENGDA TOWNSHIP CHINA.APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH,17(4),7807-7819.
MLA Zhong, W.,et al."STABILITY ANALYSIS OF UNFAVOURABLE GEOLOGICAL BODIES IN A POST-EARTHQUAKE AREA: A CASE STUDY IN GENGDA TOWNSHIP CHINA".APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 17.4(2019):7807-7819.
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