Full-scale testing to assess climate effects on embankments

Hughes, Paul; Glendinning, S. G.; Mendes, João; Parkin, Geoffrey; Toll, D. G.; Gallipoli, Domenico; Miller, Pauline E.

doi:10.1680/ensu.2009.162.2.67

Cited by 50 publications

(49 citation statements)

References 7 publications

(6 reference statements)

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“…Both have been installed in an embankment research facility at Nafferton, Northumberland, UK, to test their abilities against conventional instrumentation ( Fig. 1; for further details, see Hughes et al 2009;Glendinning et al 2014); such facilities are valuable for testing new approaches in a controlled environment. Table 3 identifies three techniques that have been little used so far for monitoring infrastructure slopes and that all show some promise, particularly as more pervasive approaches for condition monitoring of long lengths of asset at relatively low cost.…”

Section: New Measurement Technologiesmentioning

confidence: 99%

Current and future role of instrumentation and monitoring in the performance of transport infrastructure slopes

Smethurst

Smith

Uhlemann

et al. 2017

QJEGH

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Instrumentation is often used to monitor the performance of engineered infrastructure slopes. This paper looks at the current role of instrumentation and monitoring, including the reasons for monitoring infrastructure slopes, the instrumentation typically installed and parameters measured. The paper then investigates recent developments in technology and considers how these may change the way that monitoring is used in the future, and tries to summarize the barriers and challenges to greater use of instrumentation in slope engineering. The challenges relate to economics of instrumentation within a wider risk management system, a better understanding of the way in which slopes perform and/or lose performance, and the complexities of managing and making decisions from greater quantities of data.

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Section: New Measurement Technologiesmentioning

confidence: 99%

Current and future role of instrumentation and monitoring in the performance of transport infrastructure slopes

Smethurst

Smith

Uhlemann

et al. 2017

QJEGH

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“…Foundation conditions were stiff to hard Glacial Till with an in-situ permeability ranging from 1x10 -10 -1x10 -12 m/s. Further details of design, construction process, instrumentation and materials testing is provided in Hughes et al [8] The embankment was constructed in four 18 m long sections: the two inner-most sections (panels B and C, 36m long in total, Figure 1) were constructed according to Highways Agency specifications (termed the 'well compacted panels') and simulate new-build highway embankments; the two outer-most sections (panels A and D, Figure 1) were built to represent poorly constructed/heterogeneous rail embankments. This was achieved by placing fill in 1.3 m lifts with minimum tracking by site plant.…”

Section: Test Embankment Construction and Characterisationmentioning

confidence: 99%

“…Anderson et al [4]; Ridley et al [5]; Nyambayo et al [6]; Smethurst et al [7]; Hughes et al [8] and Glendinning et al [3&9] have all identified the role of water (pore water pressures), vegetation and permeability as important parameters in governing the stability of infrastructure slopes of all ages.…”

Section: Introductionmentioning

confidence: 99%

Construction, management and maintenance of embankments used for road and rail infrastructure: implications of weather induced pore water pressures

et al. 2014

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S. (2014) 'Construction, management and maintenance of embankments used for road and rail infrastructure : implications of weather induced pore water pressures.', Acta geotechnica., 9 (5).pp. 799-816. Further information on publisher's website:http://dx.doi.org/10.1007/s11440-014-0324-1Publisher's copyright statement:The nal publication is available at Springer via http://dx.doi.org/10.1007/s11440-014-0324-1Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. beneath the shoulders of the embankment in response to weather events that were imposed upon its surface by both natural and artificial means. Significant differences were observed in pore water pressure behaviour across the embankment, which were influenced by compaction level, aspect and presence of a granular capping material on the crest. Permeability was also observed to vary across the embankment both spatially and with depth, and temporally, being dependent on degree of saturation and macro-scale effects, particularly within a 'near surface zone'. A conceptual model of an engineered embankment is proposed which encapsulates the above behaviour so as to assist in the modelling and monitoring of road and rail embankments.

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“…Examples of approaches to simulate these effects range from intensity-duration (I-D) threshold envelopes at relatively small scales, to large scale, site based analyses using fully-coupled hydrological-slope stability models (see for example O'Brien et al 2004;Manning et al 2008;Glendinning et al 2006;Rouainia et al 2009;Hughes et al 2009). There are still many gaps in the quality of data and understanding of topography effects, soil properties, precipitation, hydrological properties and changing site conditions through time that limit the usefulness of these fully coupled models).…”

Section: Modelling Landscape Sensitivitymentioning

confidence: 99%

Climate change and slope stability in the UK: challenges and approaches

Dijkstra

Dixon

2010

QJEGH

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This item was submitted to Loughborough's Institutional Repository (https://dspace.lboro.ac.uk/) by the author and is made available under the following Creative Commons Licence conditions.For the full text of this licence, please go to: http://creativecommons.org/licenses/by-nc-nd/2.5/ Dijkstra, T.A. & Dixon, N. (2010). Climate change and slope stability: Challenges and approaches. Quarterly Journal of Engineering Geology and Hydrogeology, 43, 4,[371][372][373][374][375][376][377][378][379][380][381][382][383][384][385] 1 Climate change and slope stability in the UK: Challenges and approaches Dijkstra, T.A. and Warming of the global climate due to anthropogenic influences is well documented and widely accepted (e.g. Hulme et al. 2002;Stainforth et al. 2007;Jenkins et al. 2009;Collins 2007). Ongoing climate change is now 'reasonably foreseeable' (see e.g. Firth and Colley 2006) and any uncertainty associated with the forecasts can no longer be used as an excuse to ignore the problem (e.g. Grossman 2003;Perroy 2006; Metcalf et al. 2009; Willows and Connell 2003). Failure to take account of the potential adverse effects of climate change on the stability of landscapes will carry additional financial risk (ABI 2009, Stern 2007, for example when inappropriate design, operation and maintenance strategies in undulating landscapes and earthworks continue to be applied (Dijkstra and Dixon 2007). Adaptation to forecasted changes in climate conditions is now key and this requires upgrading the knowledge base and slope instability modelling capability (Derbyshire et al. 2001; Dixon et al. , 2008 Glendinning et al. 2008)).This realisation has led to increasing pressures to take action and gain the necessary knowledge that would enable a more effective adaptation to the potentially adverse consequences of climate change, impacting natural and constructed (engineered) slopes and affecting both first-time and reactivated failures. This has been supported by targeted funding from the Engineering and Physical Sciences Research Council (EPSRC) in the UK for research into the implications of climate change (Building Dijkstra, T.A. & Dixon, N. (2010). Climate change and slope stability: Challenges and approaches. Quarterly Journal of Engineering Geology and Hydrogeology, 43, 4, 371-385. This paper briefly introduces the impacts of slope instability and the context of climate change forecasting. This is followed by a discussion of the current status of the forecasting capability with respect to responses of slope stability to climate change drivers. This discussion is an attempt to capture the outcomes of the workshops and symposium organised as part of the CLIFFS network, It is hoped that the issues raised will serve as an opportunity to engage in further discussions and research efforts that ultimately should lead to better slope instability process models and a more successful integration of these models with climate change forecasts (in particular UKCP09). Impact of unstable slopes in the UKThe stability of engineered slope...

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Full-scale testing to assess climate effects on embankments

Cited by 50 publications

References 7 publications

Current and future role of instrumentation and monitoring in the performance of transport infrastructure slopes

Current and future role of instrumentation and monitoring in the performance of transport infrastructure slopes

Construction, management and maintenance of embankments used for road and rail infrastructure: implications of weather induced pore water pressures

Climate change and slope stability in the UK: challenges and approaches

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