IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
Seismic response of the Lengzhuguan slope caused by topographic and geological effects
He, Jianxian1,2,3; Qi, Shengwen1,2,3; Wang, Yunsheng4; Saroglou, Charalampos5
2020-02-01
Source PublicationENGINEERING GEOLOGY
ISSN0013-7952
Volume265Pages:13
AbstractEarthquake-induced slope failure often results in a large loss of life and property, and thus, understanding how a slope responds to seismic shaking can reveal the mechanism and movement of this kind of phenomenon. After the 2008 Wenchuan earthquake, a dense array of strong earthquake seismographs were deployed along the Lengzhuguan slope, Luding County, Sichuan Province, Southwest China, to study the seismic response of the slope. Three main shocks were recorded in 2014 and 2015, with epicenter distances between 34 km and 70 km. Observation data show that the ground motion was polarized in the direction perpendicular to the elongation direction of the ridge (near 50 azimuth from North), with an amplification coefficient > 10 and a ground motion amplification frequency band between 1.5 and 2.5 Hz. The results of a series of numerical simulation experiments conducted using the finite difference method indicate that the observed seismic response characteristics of the Lengzhuguan slope can be reproduced only by a heterogeneous model containing a loose deposit layer with a thickness of 30 m. It was found that geological and topographic conditions resulted in complex slope seismic response characteristics that were coupled in both time and frequency, and the geological conditions dominated the seismic response of the slope. In terms of co-seismic landslide hazard, more attention should be given to subsurface lithology and rock mass structure.
KeywordTopography effects Geology effects Seismic response amplification Field observation Numerical simulation
DOI10.1016/j.enggeo.2019.105431
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordSITE-CLASSIFICATION METHOD ; STRONG-MOTION STATIONS ; GROUND-MOTION ; AMBIENT NOISE ; SURFACE-TOPOGRAPHY ; DYNAMIC-RESPONSES ; SPECTRAL RATIO ; EARTHQUAKE ; AMPLIFICATION ; WAVES
Language英语
Funding ProjectNational Natural Science Foundation of China[41825018] ; National Natural Science Foundation of China[41672307] ; National Natural Science Foundation of China[41790442] ; National Natural Science Foundation of China[41322020] ; National Natural Science Foundation of China[41877235]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000517660100038
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95628
Collection页岩气与地质工程院重点实验室
Corresponding AuthorQi, Shengwen
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Peoples R China
5.Natl Tech Univ Athens, Sch Civil Engn, Dept Geotech Engn, Athens, Greece
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
He, Jianxian,Qi, Shengwen,Wang, Yunsheng,et al. Seismic response of the Lengzhuguan slope caused by topographic and geological effects[J]. ENGINEERING GEOLOGY,2020,265:13.
APA He, Jianxian,Qi, Shengwen,Wang, Yunsheng,&Saroglou, Charalampos.(2020).Seismic response of the Lengzhuguan slope caused by topographic and geological effects.ENGINEERING GEOLOGY,265,13.
MLA He, Jianxian,et al."Seismic response of the Lengzhuguan slope caused by topographic and geological effects".ENGINEERING GEOLOGY 265(2020):13.
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