Hughes Dijkstra et al 2017 Challenges engineered slopes TU1202 e3sconf_eunsat2016_04009.pdf (2.89 MB)
Challenges in monitoring and managing engineered slopes in a changing climate
conference contribution
posted on 2018-02-26, 11:25 authored by Paul N. Hughes, Rosalind Hen-Jones, Ross A. Stirling, Stephanie Glendinning, David Gunn, J. Chambers, Tom DijkstraTom Dijkstra, J.A. Smethurst, Kristine Flesjo© 2016 The Authors. 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.
Funding
The authors would like to acknowledge funding provided by EU-COST Action TU1202, the Natural Environment Research Council (GA/12S/007), the BGS British University Funding Initiative (S223), iSMART (EP/K027050/1), and Assessing the Underworld (EP/K021699/1). Tom Dijkstra, Jon Chambers and David Gunn publish with the permission of the Executive Director of the British Geological Survey.
History
School
- Architecture, Building and Civil Engineering
Published in
E-UNSAT 2016 3rd European Conference on Unsaturated Soils E3S Web of ConferencesVolume
9Issue
04009Citation
HUGHES, P.N. ...et al., 2016. Challenges in monitoring and managing engineered slopes in a changing climate. Presented at the 3rd European Conference on Unsaturated Soils – “E-UNSAT 2016” Paris, 12-14th September, E3S Web of Conferences, 9: 04009.Publisher
© EDP SciencesVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/Acceptance date
2016-09-12Publication date
2016Notes
This is an Open Access Paper. It is published by EDP Sciences under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/eISSN
2267-1242Publisher version
Language
- en