IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.6
Effects of site conditions on earthquake ground motion and their applications in seismic design in loess region
WANG Lan-min; WU Zhi-jian; XIA Kun
Corresponding AuthorWU Zhi-jian
2017-06
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:6Pages:1185-1193
Subtype期刊论文
AbstractThe Loess Plateau is an earthquake prone region of China, where the effects of loess deposit on ground motion were discovered during the 2008 Wenchuan earthquake (Ms8.0) and the 2013 Minxian-Zhangxian earthquake (Ms6.6). The field investigations, observations, and analyses indicated that large number of casualties and tremendous economic losses were caused not only by collapse and damage of houses with poor seismic performance, landslides, but also amplification effects of site conditions, topography and thickness of loess deposit, on ground motion. In this paper, we chose Dazhai Village and Majiagou Village as the typical loess site affected by the two earthquakes for intensity evaluation, borehole exploration, temporary strong motion array, micro tremor survey, and numerical analysis. The aim is to explore the relations between amplification factors and site conditions in terms of topography and thickness of loess deposit. We also developed site amplification factors of ground motion for engineering design consideration at loess sites. The results showed that the amplification effects are more predominant with increase in thickness of loess deposit and slope height. The amplification may increase seismic intensity by 1 degree, PGA and predominant period by 2 times, respectively.
KeywordLoessial Site Field Investigation Ground Motion Observation Micro Tremor Observation Loess Topography Loess Thickness Site Effects Seismic Design
DOI10.1007/s11629-016-3921-7
Indexed BySCI
Language英语
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18736
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.6
Recommended Citation
GB/T 7714
WANG Lan-min,WU Zhi-jian,XIA Kun. Effects of site conditions on earthquake ground motion and their applications in seismic design in loess region[J]. Journal of Mountain Science,2017,14(6):1185-1193.
APA WANG Lan-min,WU Zhi-jian,&XIA Kun.(2017).Effects of site conditions on earthquake ground motion and their applications in seismic design in loess region.Journal of Mountain Science,14(6),1185-1193.
MLA WANG Lan-min,et al."Effects of site conditions on earthquake ground motion and their applications in seismic design in loess region".Journal of Mountain Science 14.6(2017):1185-1193.
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