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Abstract

Trees cover the slopes of many railway earthworks supporting the UK’s transport network. Root water uptake by trees can cause seasonal shrinkage and swelling of the embankment soil, affecting the line and level of the railway track. This requires continual maintenance to maintain the serviceability of the track and reduce train speed restrictions. However, the removal of trees from railway embankment slopes and the loss of soil suctions generated by root water uptake may negatively impact embankment stability, particularly during periods of wet weather. An improved understanding of the influence of tree removal on embankment hydrology is required so that infrastructure owners can develop a managed system of vegetation clearance.

Hydrological field monitoring data from an instrumented railway embankment are presented and compared with a finite element model of root water uptake incorporating daily weather data. It is shown that trees maintain persistent suctions within their root zone which are unaffected by seasonal wetting and drying at the soil surface. However, the removal of trees from the embankment slope causes wetting of the soil from the soil surface as persistent soil suctions within the root zone are lost.
Original languageEnglish
Title of host publicationLandslide Science for a Safer Geoenvironment
Subtitle of host publicationVol.1- The International Programme on Landslides (IPL)
EditorsK. Sassa, P. Canuti, Y. Yin
PublisherSpringer
Pages241-246
Number of pages6
ISBN (Print)9783319049984
DOIs
Publication statusPublished - 2014

Fingerprint

embankment
hydrology
railway
water uptake
suction
modeling
wetting
rhizosphere
soil surface
soil
weather
earthworks
swelling
train
removal
infrastructure
vegetation

Keywords

  • trees
  • transport infrastructure

Cite this

Briggs, K., Smethurst, J., & Powrie, W. (2014). Modelling the influence of tree removal on embankment slope hydrology. In K. Sassa, P. Canuti, & Y. Yin (Eds.), Landslide Science for a Safer Geoenvironment: Vol.1- The International Programme on Landslides (IPL) (pp. 241-246). Springer. https://doi.org/10.1007/978-3-319-04999-1_32

Modelling the influence of tree removal on embankment slope hydrology. / Briggs, Kevin; Smethurst, Joel; Powrie, William .

Landslide Science for a Safer Geoenvironment: Vol.1- The International Programme on Landslides (IPL). ed. / K. Sassa; P. Canuti; Y. Yin. Springer, 2014. p. 241-246.

Research output: Chapter in Book/Report/Conference proceedingChapter

Briggs, K, Smethurst, J & Powrie, W 2014, Modelling the influence of tree removal on embankment slope hydrology. in K Sassa, P Canuti & Y Yin (eds), Landslide Science for a Safer Geoenvironment: Vol.1- The International Programme on Landslides (IPL). Springer, pp. 241-246. https://doi.org/10.1007/978-3-319-04999-1_32
Briggs K, Smethurst J, Powrie W. Modelling the influence of tree removal on embankment slope hydrology. In Sassa K, Canuti P, Yin Y, editors, Landslide Science for a Safer Geoenvironment: Vol.1- The International Programme on Landslides (IPL). Springer. 2014. p. 241-246 https://doi.org/10.1007/978-3-319-04999-1_32
Briggs, Kevin ; Smethurst, Joel ; Powrie, William . / Modelling the influence of tree removal on embankment slope hydrology. Landslide Science for a Safer Geoenvironment: Vol.1- The International Programme on Landslides (IPL). editor / K. Sassa ; P. Canuti ; Y. Yin. Springer, 2014. pp. 241-246
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