Assessments of Internal Erosion in a Landfill Due to Changes in Groundwater Level
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Assessments of Internal Erosion in a Landfill Due to Changes in Groundwater Level

Authors: Siamak Feizi, Gunvor Baardvik

Abstract:

Soil erosion has special consequences for landfills that are more serious than those found at conventional construction sites. Different potential heads between two sides of a landfill and the subsequent movement of water through pores within the soil body could trigger the soil erosion and construction instability. Such condition was encountered in a landfill project in the southern part of Norway. To check the risk of internal erosion due changes in the groundwater level (because of seasonal flooding in the river), a series of numerical simulations by means of Geo-Seep software were conducted. Output of this study provides a total picture of the landfill stability, possibilities of erosions and necessary measures to prevent or reduce the risk for the landfill operator.

Keywords: Erosion, seepage, landfill, stability.

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References:


[1] Vaverkova, M. D.: Landfill Impacts on the Environment—Reviews, Geosciences, 9, 431; doi: 10.3390, 2019.
[2] Thomaz, E. L. and Luiz, J. C.: Soil loss, soil degradation and rehabilitation in a degraded land area in Guarapuava (Brazil). Land Degrad. Dev., 23, 72-81, 2012.
[3] Bai, X. Y., Wang, S. J., and Xiong, K. N.: Assessing spatialtemporal evolution processes of karst rocky desertification land: indications for restoration strategies. Land Degrad. Dev., 24, 47–56, 2013.
[4] Chen, X.W., Tsz-Fung, Wong, J., Mo,W. Y., Man, Y.B.,Wang-Wai, Ng. Ch., and Wong M. H.: Ecological Performance of the Restored South east New Territories 8SENT) Landfill in Hong Kong (2000–2012). Land Degrad. Dev., 1, 1–13, doi:10.1002/ldr.2366, 2015.
[5] Chu-Agor, M.L.; Fox, G.A.; Cancienne, R.M.; Wilson, G.V. Seepage caused tension failures and erosion undercutting of hillslopes. J. Hydrol. 359, 247–259, 2008.
[6] Fox, G.A.; Wilson, G.V. The role of subsurface flow in hillslope and stream bank erosion: A review. Soil Sci. Soc. Am. J. 2010, 74, 717–733.
[7] Terzaghi, K. Der Grundbruch an Stauwerken und Seine Verhütung. Wasserkraft, 17, 445–449, 1922.
[8] Tschugajew, R., A new method for the calculation of seepage flow. (in Russian), Gidrotechniceskoe stroitel’stvo 26, Moscow, 1956.
[9] Novak, P., Moffat, A.I.B., Nalluri, C., and Narayanan, R., Hydraulic Structures, 3rd edition, Spon, London/New York, 2001.
[10] Zhe Huang, Yuchuan Bai Haijue Xu, Yufen Cao and Xiao Hu, A Theoretical Model to Predict the Critical Hydraulic Gradient for Soil Particle Movement under Two-Dimensional Seepage Flow, Water 2017, 9, 828; doi:10.3390/w9110828, 2017.
[11] Geo-Studio program, Seep, 2019 revision.
[12] NGI- Inhouse data base for the landfill project, 2021