NDLI: Influence of strong motion characteristics on permanent displacement of slopes

Content Provider	Springer Nature Link
Author	Roy, Rana Ghosh, Debasis Bhattacharya, Gautam
Copyright Year	2015
Abstract	Landslides triggered by moderate to major earthquakes are a recognized seismic hazard. Arias Intensity (I a) is a key intensity measure of the ground motion, but significant duration is widely used to define strong motion duration. We calculate Newmark’s displacements using earthquake records bracketing a broad range of Arias Intensity and significant duration employing Newmark’s rigid block method and a number of yield accelerations. Total landslide displacement increases with the increase in the energy content of the ground motion (I a) above a threshold. Such threshold may be expressed as a function of yield acceleration of the slope regardless of the ground motion characteristics. Newmark displacement decreases with increasing duration for earthquakes with similar energy content. The wide scatter in the results converges when using formal dimensional analysis. Self-similar symmetry may facilitate the assessment of the performance of slopes during earthquakes. The mathematical framework for probabilistic determination of landslides displacement may be a useful aid to estimate the likelihood of landslide hazards provided that the geotechnical properties of the slopes are known.
Starting Page	279
Ending Page	292
Page Count	14
File Format	PDF
ISSN	1612510X
Journal	Landslides
Volume Number	13
Issue Number	2
e-ISSN	16125118
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-03-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Landslide Newmark’s method Ground motion characteristics Dimensional analysis Natural Hazards Geography Agriculture Civil Engineering
Content Type	Text
Resource Type	Article
Subject	Geotechnical Engineering and Engineering Geology

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