Challenges in monitoring and managing engineered slopes in a changing climate
Challenges in monitoring and managing engineered slopes in a changing climate
Geotechnical asset owners need to know which parts of their asset network are vulnerable to climate change induced failure in order to optimise future investment. Protecting these vulnerable slopes requires monitoring systems capable of identifying and alerting to asset operators changes in the internal conditions that precede failure. Current monitoring systems are heavily reliant on point sensors which can be difficult to interpret across slope scale. This paper presents challenges to producing such a system and research being carried out to address some of these using electrical resistance tomography (ERT). Experimental results show that whilst it is possible to measure soil water content indirectly via resistivity the relationship between resistivity and water content will change over time for a given slope. If geotechnical parameters such as pore water pressure are to be estimated using this method then ERT systems will require integrating with more conventional geotechnical instrumentation to ensure correct representative information is provided. The paper also presents examples of how such data can be processed and communicated to asset owners for the purposes of asset management.
Hughes, P.N.
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Hen-Jones, R.
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Stirling, R.A.
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Glendinning, S.
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Gunn, D.A.
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Chambers, J.E.
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Dijkstra, T.A.
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Smethurst, J.A.
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Flesjo, K.
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Hughes, P.N.
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Hen-Jones, R.
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Stirling, R.A.
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Glendinning, S.
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Gunn, D.A.
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Chambers, J.E.
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Dijkstra, T.A.
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Smethurst, J.A.
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Flesjo, K.
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Hughes, P.N., Hen-Jones, R., Stirling, R.A., Glendinning, S., Gunn, D.A., Chambers, J.E., Dijkstra, T.A., Smethurst, J.A. and Flesjo, K.
(2016)
Challenges in monitoring and managing engineered slopes in a changing climate.
E-UNSAT 2016, Paris, France.
12 - 14 Sep 2016.
7 pp
.
(doi:10.1051/e3sconf/20160904009).
Record type:
Conference or Workshop Item
(Other)
Abstract
Geotechnical asset owners need to know which parts of their asset network are vulnerable to climate change induced failure in order to optimise future investment. Protecting these vulnerable slopes requires monitoring systems capable of identifying and alerting to asset operators changes in the internal conditions that precede failure. Current monitoring systems are heavily reliant on point sensors which can be difficult to interpret across slope scale. This paper presents challenges to producing such a system and research being carried out to address some of these using electrical resistance tomography (ERT). Experimental results show that whilst it is possible to measure soil water content indirectly via resistivity the relationship between resistivity and water content will change over time for a given slope. If geotechnical parameters such as pore water pressure are to be estimated using this method then ERT systems will require integrating with more conventional geotechnical instrumentation to ensure correct representative information is provided. The paper also presents examples of how such data can be processed and communicated to asset owners for the purposes of asset management.
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e3sconf_eunsat2016_04009.pdf
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e-pub ahead of print date: 12 September 2016
Venue - Dates:
E-UNSAT 2016, Paris, France, 2016-09-12 - 2016-09-14
Organisations:
Infrastructure Group
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Local EPrints ID: 400710
URI: http://eprints.soton.ac.uk/id/eprint/400710
PURE UUID: 9ff50d61-a4c6-4c67-aa30-cdaa4a8e2644
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Date deposited: 23 Sep 2016 13:55
Last modified: 12 Aug 2024 01:36
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Contributors
Author:
P.N. Hughes
Author:
R. Hen-Jones
Author:
R.A. Stirling
Author:
S. Glendinning
Author:
D.A. Gunn
Author:
J.E. Chambers
Author:
T.A. Dijkstra
Author:
K. Flesjo
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