Regional Liquefaction Mapping Accounting for Multiscale Spatial Variability of Soil Parameters with Geological Constraints

Chaofeng Wang, Qiushi Chen, C. Hsein Juang

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

This paper aims at introducing a framework for estimating regional liquefaction hazard considering the spatial variability of soil properties and geological constraints. Firstly, the ground-truth liquefaction potential index (LPI) at in-situ testing locations is calculated. Then, fake LPI values are randomly sampled according to their distributions within different surficial geological units. Both ground-truth and fake LPI values are then treated as known data and fed into a novel multiscale random field model, which can generate LPI values at places where in-situ testing is not performed. The developed framework is able to make predictions of liquefaction potential within a large region. The multiscale random field model is advanced because it can refine the prediction into finer resolutions. Another advantage of the developed framework is that the geological constrains is easy to apply to the random field model so that the predictions could be corrected by geology conditions of the studied area. An example application is performed to estimate the liquefaction potential in an earthquake prone region in the Alameda County of California. It is found that the developed framework is able to capture the fragile portions of the studied region without significant contradictions to the geological constraints.

原文???core.languages.en_GB???
主出版物標題Geotechnical Special Publication
編輯Jinsong Huang, Gordon A. Fenton, Limin Zhang, D. V. Griffiths
發行者American Society of Civil Engineers (ASCE)
頁面43-53
頁數11
版本GSP 283
ISBN(電子)9780784480700
DOIs
出版狀態已出版 - 2017
事件Geo-Risk 2017: Reliability-Based Design and Code Developments - Denver, United States
持續時間: 4 6月 20177 6月 2017

出版系列

名字Geotechnical Special Publication
號碼GSP 283
0
ISSN(列印)0895-0563

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???event.eventtypes.event.conference???Geo-Risk 2017: Reliability-Based Design and Code Developments
國家/地區United States
城市Denver
期間4/06/177/06/17

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