Effect of root water uptake on road movement across seasonal changes
Yuliana YULIANA, Arwan APRIYONO, Anthony Kwan LEUNG, Suraparb KEAWSAWASVONG, Viroon KAMCHOOM
Abstract. The use of trees as roadside barriers provides benefits like noise and pollution control. On the other hand, the root systems can disrupt soil moisture, leading to uneven subsidence and impacting nearby structures. Knowing the appropriate distance between trees and pavement will allow for maximizing the plant’s favourable impact on infrastructure. This study aimed to determine the safe distance between trees and pavement by examining the effects of transpiration on pore water pressure (PWP) and pavement subsidence under seasonal variations. The root water uptake was simplified in a finite element model using multiple hydraulic head boundaries and validated through field observations. A hypoplastic model was employed to simulate the non-linear behaviour and plastic strain accumulation in unsaturated soil. The findings indicate that the summer season exhibited a more noticeable change in negative PWP. Trees significantly reduce PWP, especially during summer seasons, creating higher suction near them due to evapotranspiration. Additionally, pavement edges closest to trees experience the most pronounced subsidence, likely due to a greater soil moisture deficit. Seasonal variations influence subsidence, with drier periods leading to more severe effects. Furthermore, the pavement with the distance 4 meters from the tree highlights a potential risk exceeded the cracking moment at 5th summer period, indicating a high risk of damage.
Keywords
Hypoplastic Model, Pore Water Pressure, Root Water Uptake, Seasonal Condition, Settlement
Published online 2/25/2025, 10 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Yuliana YULIANA, Arwan APRIYONO, Anthony Kwan LEUNG, Suraparb KEAWSAWASVONG, Viroon KAMCHOOM, Effect of root water uptake on road movement across seasonal changes, Materials Research Proceedings, Vol. 48, pp 707-716, 2025
DOI: https://doi.org/10.21741/9781644903414-77
The article was published as article 77 of the book Civil and Environmental Engineering for Resilient, Smart and Sustainable Solutions
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] T. Van Renterghem, D. Botteldooren, K. Verheyen, Road traffic noise shielding by vegetation belts of limited depth, J. Sound Vib. 331 (2012) 2404–2425. https://doi.org/10.1016/j.jsv.2012.01.006
[2] L.F. Ow, S. Ghosh, Urban cities and road traffic noise: Reduction through vegetation, Appl. Acoust. 120 (2017) 15–20. https://doi.org/10.1016/j.apacoust.2017.01.007
[3] M. Tallis, G. Taylor, D. Sinnett, P. Freer-Smith, Estimating the removal of atmospheric particulate pollution by the urban tree canopy of London, under current and future environments, Landsc. Urban Plan. 103 (2011) 129–138. https://doi.org/10.1016/j.landurbplan.2011.07.003
[4] W.A.R.T.W. Bandara, C.T.M. Dissanayake, Most tolerant roadside tree species for urban settings in humid tropics based on Air Pollution Tolerance Index, Urban Clim. 37 (2021) 100848. https://doi.org/10.1016/j.uclim.2021.100848
[5] S.A. Nitoslawski, P.N. Duinker, P.G. Bush, A review of drivers of tree diversity in suburban areas: Research needs for North American cities, Environ. Rev. 24 (2016) 471–483. https://doi.org/10.1139/er-2016-0027
[6] H. Nagendra, D. Gopal, Street trees in Bangalore: Density, diversity, composition and distribution, Urban For. Urban Green. 9 (2010) 129–137. https://doi.org/10.1016/j.ufug.2009.12.005
[7] H.W. Liu, S. Feng, C.W.W. Ng, Analytical analysis of hydraulic effect of vegetation on shallow slope stability with different root architectures, Comput. Geotech. 80 (2016) 115–120. https://doi.org/10.1016/j.compgeo.2016.06.006
[8] A. Apriyono, Yuliana, V. Kamchoom, Serviceability of cut slope and embankment under seasonal climate variations, Acta Geophys. (2023s). https://doi.org/10.1007/s11600-022-00953-x
[9] V. Kamchoom, D. Boldrin, A.K. Leung, C. Sookkrajang, S. Likitlersuang, Biomechanical properties of the growing and decaying roots of Cynodon dactylon, Plant Soil 471 (2022) 193–210. https://doi.org/10.1007/s11104-021-05207-1
[10] V. Kamchoom, A.K. Leung, C.W.W. Ng, Effects of root geometry and transpiration on pull-out resistance, Geotech. Lett. 4 (2014) 330–336. https://doi.org/10.1680/geolett.14.00086
[11] T.N. Phan, S. Likitlersuang, V. Kamchoom, A.K. Leung, Root biomechanical properties of Chrysopogon zizanioides and Chrysopogon nemoralis for soil reinforcement and slope stabilisation, L. Degrad. Dev. 32 (2021) 4624–4636. https://doi.org/10.1002/ldr.4063
[12] J.. Greenwood, J.. Norris, J. Wint, Greenwood Assessing the contribution of vegetation to slope stability.pdf, in: Proceeding Inst. Civ. Eng., ICE, 2004: pp. 199–207.
[13] V. Kamchoom, A.. Leung, A simplified modelling method of seasonal tree root-water uptake effects on pore-water pressure and ground subsidence, in: Proceeding 7th Int. Conf. Unsaturated Soil, HKUST, Hong Kong, China, 2018.
[14] V. Kamchoom, A.K. Leung, Effects of plant removal on slope hydrology and stability, in: Phys. Model. Geotech., CRC Press, 2018: pp. 1131–1136.
[15] V. Kamchoom, A.K. Leung, C.W.W. Ng, A new artificial root system to simulate the effects of transpiration-induced suction and root reinforcement, 15th Asian Reg. Conf. Soil Mech. Geotech. Eng. ARC 2015 New Innov. Sustain. (2015) 236–240. https://doi.org/10.3208/jgssp.HKG-22
