Regional-scale co-seismic landslide assessment using limit equilibrium analysis

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dc.contributor.author Saade, Angela
dc.contributor.author Abou-Jaoude, Grace
dc.contributor.author Wartman, Joseph
dc.date.accessioned 2016-06-03T12:26:28Z
dc.date.available 2016-06-03T12:26:28Z
dc.date.copyright 2016 en_US
dc.date.issued 2016-06-03
dc.identifier.issn 0013-7952 en_US
dc.identifier.uri http://hdl.handle.net/10725/3943
dc.description.abstract Traditionally, regional assessment of seismic slope stability has been done using the infinite slope-rigid sliding block analysis. A major disadvantage of this approach is the resulting overestimation of the critical acceleration of the slope due to the underlying assumption of a predefined slope failure plane, and consequently the underestimation of hazard areas prone to sliding. In this paper, we present a modified approach for assessing seismic slope instabilities using a model based on limit equilibrium analysis and circular slip surfaces with no restriction to any predefined slope failure plane. For this purpose, we conduct a parametric study to identify the relationship between the critical acceleration of the slope, the slope angle, and the slope shear strength parameters. We model typical slopes in the Rocscience software SLIDE using Bishop's limit equilibrium method to identify the critical accelerations that corresponds to a failure plane with factor of safety equal to one. The critical accelerations were plotted against the variables in the parametric study and the best fit equations were obtained. The proposed approach was developed for global application but it was tested using the well-documented co-seismic landslide database of the 1994 Northridge, CA earthquake. The predicted sliding areas were compared to the inventory of landslides that were triggered in the Val Verde region in Los Angeles by the earthquake. Qualitative and quantitative assessments of the proposed model clearly show its advantages in predicting potential sliding areas. en_US
dc.language.iso en en_US
dc.title Regional-scale co-seismic landslide assessment using limit equilibrium analysis en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOE en_US
dc.author.idnumber 200702670 en_US
dc.author.department Civil Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal Engineering Geology en_US
dc.journal.volume 204 en_US
dc.article.pages 53-64 en_US
dc.keywords Regional en_US
dc.keywords Co-seismic en_US
dc.keywords Landslide assessment en_US
dc.keywords Slip surfaces en_US
dc.keywords Newmark sliding block en_US
dc.keywords Geographic Information System en_US
dc.identifier.doi https://doi.org/10.1016/j.enggeo.2016.02.004 en_US
dc.identifier.ctation Saade, A., Abou-Jaoude, G., & Wartman, J. (2016). Regional-scale co-seismic landslide assessment using limit equilibrium analysis. Engineering Geology, 204, 53-64. en_US
dc.author.email grace.aboujaoude@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S0013795216300291 en_US
dc.orcid.id https://orcid.org/0000-0003-1992-1611

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