Barlow et al 2018 Natural Experiments - accepted.pdf (525.11 kB)
Natural experiments in rock mechanics using high precision monitoring of chalk sea cliffs
conference contribution
posted on 2023-06-09, 15:09 authored by John BarlowJohn Barlow, Roger Moore, J GilhamPrediction of rock slide events remains a difficult task for geoscientists. Kinematic analysis provides an indication of possible modes of failure at a site. However, the highly variable nature of chalk compressive strength due to variations in water content and salt weathering is such that parameterizing models of slope stability can result in large variations in the resultant factor of safety. In this work, we use high-precision monitoring data of an eroding coastal cliff to characterize the geometry of a large wedge failure in chalk. We use these data in conjunction with published material properties to model the joint compressive strength of the chalk at the time of failure through back analysis. Results indicate a strength of 7.19 KPa for the chalk suggesting that the joint surface was close to saturation at the time of failure.
Funding
EPSRC; G1191
History
Publication status
- Published
File Version
- Accepted version
Journal
Engineering in chalkPublisher
ICE PublishingExternal DOI
Event name
Engineering in Chalk 2018Event location
Imperial College, London, UKEvent type
conferenceEvent date
17th and 18th September 2018Book title
Engineering in ChalkISBN
9780727764072Department affiliated with
- Geography Publications
Full text available
- Yes
Peer reviewed?
- Yes
Editors
J.A. Lawrence, R. Buckley, U.L. Lawrence, M. PreeneLegacy Posted Date
2018-09-20First Open Access (FOA) Date
2018-09-20First Compliant Deposit (FCD) Date
2018-09-20Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC