Abstract
Sliding rock slope models with intermittent rock planes and secondary rock joints are built of synthetic material, and tested in a centrifuge testing system to study the failure process of rock slopes during an earthquake. The models are made of synthetic material containing gypsum, sand and pure water with certain mix ratio through strictly controlled casting procedure. New methods are invented to build the bedding planes with full contact and no gaps; special casting method is invented to add unbroken bedding plane parts inside each bedding plane. The results of the dynamic centrifuge tests reveal that the secondary rock joints inside the rock slope serve to weaken the dynamic stability of the sliding rock slope significantly, and could affect the dynamic failure mechanism of the slopes, making the rock layers collapse into smaller rock masses during sliding along the bedding planes.
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Acknowledgments
This research work is funded by the National Science Foundation No. 1156413 of United States Government, with Joseph Wartman as principal investigator.
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© 2014 Springer International Publishing Switzerland
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Li, X., Wartman, J., Tang, H., Yan, J., Luo, H., Hu, W. (2014).
Dynamic Centrifuge Modelling Tests for Sliding Rock Slopes.
In: Sassa, K., Canuti, P., Yin, Y. (eds) Landslide Science for a Safer Geoenvironment. Springer, Cham. https://doi.org/10.1007/978-3-319-05050-8_13
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DOI: https://doi.org/10.1007/978-3-319-05050-8_13
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