Professor Nick Rosser n.j.rosser@durham.ac.uk
Professor
Patterns of precursory rockfall prior to slope failure
Rosser, N.J.; Lim, M.; Petley, D.N.; Dunning, S.A.; Allison, R.
Authors
M. Lim
D.N. Petley
S.A. Dunning
R. Allison
Abstract
In this paper we examine data generated using high-resolution three-dimensional laser scanning monitoring of coastal rock cliffs. These data are used to identify spatial and temporal patterns in rockfall activity behavior prior to slope failure. Analysis of the data suggests that given sufficient measurement precision precursory behavior, here manifest as the rate of rockfall activity prior to failure, can be detected, measured, and monitored. Environmental conditions appear to have a diminishing influence on the occurrence of increasingly large slope failures. The monitoring data implies a time-dependent sequence in the occurrence of smaller rockfalls in the period leading to the largest failures recorded. This behavior is attributed to the mechanisms of strain accumulation in the rock mass resulting from brittle failure of the slope. The implication is that combining these data with models of failure mechanisms may allow failure time to be forecast from wide-area monitoring of precursory behavior. These findings have implications for the management of potentially unstable slopes, the understanding of slope failure mechanisms, and the generation of a new type of slope failure warning systems.
Citation
Rosser, N., Lim, M., Petley, D., Dunning, S., & Allison, R. (2007). Patterns of precursory rockfall prior to slope failure. Journal of Geophysical Research, 112(F4), https://doi.org/10.1029/2006jf000642
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 4, 2007 |
Publication Date | Dec 19, 2007 |
Deposit Date | Apr 20, 2010 |
Publicly Available Date | Aug 12, 2015 |
Journal | Journal of geophysical research. Earth surface. |
Print ISSN | 0148-0227 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 112 |
Issue | F4 |
DOI | https://doi.org/10.1029/2006jf000642 |
Keywords | Precursors, Rockfalls, Laser scanning. |
Files
Published Journal Article
(1.9 Mb)
PDF
Copyright Statement
© 2007 American Geophysical Union. Rosser, N. J., Lim, M., Petley, D. N., Dunning, S. A., Allison, R. J. (2007) 'Patterns of precursory rockfall prior to slope failure', Journal of geophysical research: earth surface, 112, F04014, 10.1029/2006JF000642 (DOI). To view the published open abstract, go to http://dx.doi.org and enter the DOI.
You might also like
Are microseismic ground displacements a significant geomorphic agent?
(2014)
Journal Article
Coastal cliff-top ground motions as proxies for environmental processes
(2013)
Journal Article
Coastline retreat via progressive failure of rocky coastal cliffs
(2013)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search