Correction for Geometry Changes during Motion of Sliding-Block Seismic Displacement
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 137, Issue 10
Abstract
The sliding-block model is often used for the prediction of permanent coseismic displacements of natural slopes and earth structures. This model assumes motion in an inclined plane but does not consider the decrease in inclination of the sliding soil mass as a result of its downward motion, which is the usual condition in the field. The paper studies the above effect and proposes an empirical equation correcting the predictions of the sliding-block model. The investigation is performed by using a recently developed multiblock model. The equation correcting the predictions of the sliding-block model depends on the slip length, the difference in inclinations of the upper and lower part of the slip surface, the seismic displacement predicted by the sliding-block model and the maximum value of the applied horizontal acceleration.
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Acknowledgments
Mr Trifon Thomaidis, former student at the Hellenic Open University, provided most of the accelerograms applied in the present work by retrieving them from the internet.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 137 • Issue 10 • October 2011
Pages: 926 - 938
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Mar 3, 2010
Accepted: Jan 26, 2011
Published online: Jan 28, 2011
Published in print: Oct 1, 2011
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