Embankment cuttings: condition appraisal and remedial treatment

Perry, John; Pedley, Mike; Brady, K C; Reid, Micheal

doi:10.1680/geng.156.4.171.37531

Cited by 22 publications

(29 citation statements)

References 1 publication

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“…This has been reported by many authors, including Perry et al [1]. The implications for road embankments are less clear, particularly because the embankment does not fully simulate the hydraulic boundary conditions due to the presence of the capping layer.…”

Section: Surface Capping Of the Embankment Crestmentioning

confidence: 87%

“…This geometry was chosen so as to be representative of typical UK infrastructure embankments based on the report published by Perry et al [1] The embankment is located at Nafferton Farm, Stocksfield, Northumberland (Ordinance Survey grid Reference NZ 064 657). Foundation conditions were stiff to hard Glacial Till with an in-situ permeability ranging from 1x10 -10 -1x10 -12 m/s.…”

Section: Test Embankment Construction and Characterisationmentioning

confidence: 99%

“…Infrastructure slopes (including embankments and cuttings) represent approximately one third of the total asset value of the UK's transport infrastructure [1]. This infrastructure is ageing and much of it was constructed before the development of modern soil mechanics theories, deformation and failure are therefore common [2].…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Surface Capping Of the Embankment Crestmentioning

confidence: 87%

Section: Test Embankment Construction and Characterisationmentioning

confidence: 99%

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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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“…The mathematically 'simple' form of the Greenwood General equation and the factor of safety defined in terms of restoring and disturbing forces allows straightforward inclusion of the various vegetation influences (equation [3]). …”

Section: Stability Analysis To Include the Influences Of Vegetationmentioning

confidence: 99%

Assessing the contribution of vegetation to slope stability

Greenwood

Norris

Wint

2004

Proceedings of the Institution of Civil Engineers - Geotechnica

132

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Many embankments and cuttings associated with the transportation infrastructure in the UK are only marginally stable. Engineering techniques such as soil nailing, geosynthetic reinforcement, improved drainage and ground improvement by stabilisation are available to improve stability, but the cost can be high. A lower-cost solution may be to utilise vegetation, either self-seeded or planted. The benefits and drawbacks associated with vegetation have been the subject of some debate. The problems caused by vegetation in relation to building foundations are well documented, and confirm that vegetation can have very significant influences on geotechnical parameters. Appropriate properly maintained vegetation can have the same significant influence to help provide additional stability to soil slopes. This paper considers the potential engineering influences of vegetation and how it can be characterised on site within a geotechnical framework for stability assessments. The direct reinforcement available from the roots of trees and shrubs is identified as providing one of the most significant contributions to slope stability. Case studies in the UK, Greece and Italy demonstrate how results from in-situ root pull-out tests may be used to estimate the potential reinforcement forces available from the roots. A scheme is presented to designate zones of influence within the soil according to the size and nature of the vegetation.

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“…Most of them were built before the 45 development of modern soil mechanics in the eighteenth century (Charles, 2008). Due to 46 their progressive aging, proper infrastructure condition assessment, based on sound 47 engineering, is becoming increasingly important (Perry et al, 2001). 48…”

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confidence: 99%

Novel Approach for Health Monitoring of Earthen Embankments

Utili

Castellanza

Galli

et al. 2015

J. Geotech. Geoenviron. Eng.

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The proposed methodology was used and validated on a recently built 2 km long river 29 embankment in Galston (Scotland, UK). A suite of geotechnical probes was installed to 30 monitor the seasonal variation of water content over a two-year period. Most devices were 31 calibrated in-situ. A novel procedure to extrapolate the value of water content from the 32 geotechnical and geophysical probes in any point of the embankment is illustrated. 33Desiccation fissuring degrades the resistance of embankments against several failure 34mechanisms. An index of susceptibility is here proposed. The index is a useful tool to assess 35 the health state of the structure and prioritise remedial interventions. 36 37 2

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Embankment cuttings: condition appraisal and remedial treatment

Cited by 22 publications

References 1 publication

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

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

Assessing the contribution of vegetation to slope stability

Novel Approach for Health Monitoring of Earthen Embankments

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