Finite Element Analysis of Skirted Strip Footing Resting on Cohesive Slopes
DOI:
https://doi.org/10.31272/jeasd.2832Keywords:
Bearing capacity, Cohesive soil, Finite elements, Skirted footing, SlopeAbstract
The bearing capacity of footing with and without a skirt has been investigated using a series of finite element analyses using the Geo-slope program. Several models were conducted with varying skirt depths and slope crest lactations. The impact of slope inclination b, height H, and soil undrained shear strength Cu were also covered. The paper findings demonstrated that several factors significantly change the estimate of bearing capacity with great effectiveness that is ranging between 16.7% and 52.7% for D/B = 0.5, 1 and 1.5, and L/B (distance from edge slope/width of footing) = 0, 1, 4 and 8 respectively, and 18.2%, 36.4, 57.6%; 11.6%, 17.6%; 27.9% kPa, for D/B (depth of skirt/width of footing) = 0.5, 1 and 1.5 and L/B = 0, 1, 4 and 8 respectively in case β=10° slope inclination with H/B =2 and Cu=60 kPa for D/B = 0.5, 1 and 1.5 and L/B = 0, 1, 4 and 8 with Cu=20 kPa respectively in case β=10° slope inclination with H/B =2, also the critical L/ B ratio is 4. Beyond this value, the increase in bearing capacity became constant.
References
T. Schanz and Y. Al-Badran, “Swelling Pressure Characteristics of Compacted Chinese Gaomiaozi Bentonite GMZ01,” Soils and Foundations, vol. 54, no. 4, pp. 748–759, Aug. 2014, doi: https://doi.org/10.1016/j.sandf.2014.06.026.
A. M. Mosa, A. H. Taher, and L. A. Al-Jaberi, “Improvement of Poor Subgrade Soils Using Cement Kiln Dust,” Case Studies in Construction Materials, vol. 7, pp. 138–143, Dec. 2017, doi: https://doi.org/10.1016/j.cscm.2017.06.005.
A. S. T. Al-Madhhachi, G. J. Hanson, G. A. Fox, A. K. Tyagi, and R. Bulut, “Measuring Soil Erodibility Using a Laboratory ‘Mini’ JET,” Transactions of the ASABE, vol. 56, no. 3, pp. 901–910, Jul. 2013, doi: https://doi.org/10.13031/trans.56.9742.
A. Sabah Al Amli, N. . Al-Ansari, and J. . Laue, “Behavior Of Reinforcement Bars In Foundation With Soil To Satisfy Sustainability," J. eng. Sustain. dev., vol. 27, no. 5, pp. 558–564, Sep. 2023, doi: https://doi.org/10.31272/jeasd.27.5.1.
M. Elmeligy, A. Altahrany, and T. AL-Shyoukhi, "Bearing capacity and settlement of inclined skirted foundation resting on sand," Results in Engineering, vol. 20, no.2, pp. 111- 118, 2023, https://doi.org/10.1016/j.rineng.
T. Qin, M. Yuan, and Li Y. B. Wang "Analysis of Bearing Performance of Monopile and Single Suction Bucket Foundation for Offshore Wind Power under Horizontal Load," Geofluids, vol., 2022, https://dx.doi.org/10.1155/2022/4163240
S. Fan, S. Li, Shen Z. Y. Zhang "Numerical analysis of the post-installation consolidated response of skirted foundations," Computers and Geotechnics, vol.166, no.4.
P.G. Watson and M. Randolph "Vertical capacity of caisson foundations in calcareous sediments," Proceeding of the 7th International Offshore Polar Engineering Conference, Honolulu. International Society of Offshore and Polar Engineers (ISOPE), vol. 1, pp. 784-790, 1997, https://publications.isope.org/proceedings/ISOPE/ISOPE%201997/papers/I97v1p784.
M.F. Bransby and M. Randolph "The effect of skirted foundation shape on response to combined V-M-H loadings," International Journal of Offshore and Polar Engineering, vol. 9, no. 3, pp. 214–218., 1999, https://www.researchgate.net/publication/254190211
M. Y. Al-Aghbari and Y.E.A. Mohamedzein "Bearing capacity of strip foundations with structural skirts" Journal of Geotechnical and Geological Engineering, vol. 22, no. 1, pp. 43-57, 2004, https://dx.doi.org/10.1023/B:GEGE.0000013997.79473.
M.Y. Al-Aghbari and Y.F.A. Mohamedzein "Improving the performance of circular foundations using structural skirts" Ground Improvement, vol. 10, no. 3, pp. 125-132, 2006, https://doi.org/10.1680/grim.2006.10.3.125.
M.Y. Al-Aghbari and Y.F.A. Mohamedzein "The Use of Skirts to Improve the Performance of a Footing in Sand," International Journal of Geotechnical Engineering, pp. 1-8. 2018, doi: https://doi.org/101.1080/19386362.2018.1429702.
O.A. Alansari, A.M. Odeh, M.N. Nasr, H.A. Sadek, and H.T. Eid "A comparative study on the behavior of square foundations resting on confined sand," Canadian Geotechnical Journal, vol. 46, no. 4, pp. 438-453, 2009, https://dx.doi.org/10.1139/T08-134.
H.T. Eid "Bearing capacity and settlement of skirted shallow foundations on sand" International Journal of Geomechanics ASCE, vol. 13, no. 5, pp. 645-652, 2013, https://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000237.
B.C. Bienen, M. J. Gaudin, L. Raush, O.A. Purwana, and H. Krisdani " Numerical Modeling of a Hybrid Skirted Foundation under Combined Loading" Computer and Gotechnics, vol. 45, pp. 127- 139, 2012 doi: https://doi.org/10.1016/J.COMPGEO.2012.05.009.
M.R. Mahmood, M.Y. Fattah, A. Khalaf "Experimental Study on Bearing Capacity of Skirted Foundations on Dry Gypseous Soil," International Journal of Civil Engineering and Technology (IJCIET) Volume 9, Issue 10, pp. 1910–1922, 2018 https://www.iaeme.com/ijciet/issues.as.
M.Y. Fattah, S.A. Al-Haddad, M. Hameedi “Load Carrying Capacity of Rectangular Foundation on Geogrid Reinforced Sloped Sandy Soil," IOP Conference Series Materials Science and Engineering, vol. 737, 2020, doi: https://doi.org/10.1088/1757-899X/737/1/012094.
P. Katariya, P. M. G. Vanza "Behaviour of Skirted Foundation Under Different Loading Conditions Using FEM Approach," Soil Dynamics, Earthquake and Computational Geotechnical Engineering. IGC 2021. Lecture Notes in Civil Engineering, vol. 300. Springer,2021,
K.A. Al-Juari, M.Y. Fattah, and M.N.G. Alzaidy "Behavior of Circular Skirted Footing on Gypseous Soil Subjected to Water Infiltration," Journal of the Mechanical Behavior of Materials, vol. 32, no. 20, 2023, https://doi.org/10.1515/jmbm.
A. Tadayo, A. Eslami & K. Fakharian "Geotechnical Behavior of Conical and Skirted Foundations Through Experimental and Numerical Assessment." Transportation Infrastructure Geotechnology, 2024, https://doi.org/10.1007/s40515-024-00380-z.
A.Z. El-Wakil, W.R. Azzam "Experimental and numerical studies of circular footing resting on confined granular subgrade adjacent to slope" Int J Geomech ASCE, vol. 16, no. 1, pp. 1-15, 2015, https://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000500
R.S. Jakka, R.P. Shukla "Discussion on experimental and numerical studies of circular footing resting on confined granular subgrade adjacent to slope" Int J Geomech, vol. 17, no. 2, pp. 1-3, 2016, https://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0000704
F. Qiu, S. Qin, K. Wei "Experimental and numerical investigation into the effect of skirted caisson on local scour around the large-scale bridge foundation" Ocean Engineering, vol. 250, no.12, 2022 https://doi.org/10.1016/j.oceaneng.2022.111052.
M. Mohammadizadeh, B. Nadi, A. Hajiannia "The undrained vertical bearing capacity of skirted foundations located on slopes using finite element limit analysis," Innovative Infrastructure, vol. 8, no. 121, 2023 https://doi.org/10.1007/s41062-023-01070-4.
R. Acharyya, A. Dey "Response of Skirted Strip Footing Resting on Layered Granular Soil" Geotechnical and Geological Engineering, vol.41, no1., 2023, doi: https://doi.org/10.1007/s10706-022-02373-6.
Y. Zhang, L. Sun, X. Feng “The consolidation response of skirted foundations in normally consolidated clay” Ocean Engineering, vol. 296, 2024b, https://doi.org/10.1016/j.oceaneng.2024.117064.
B.H. Fellenius "Basics of Foundation Design," Electronic Edition, Ed.: available at www.Fellenius.net, 2006, https://www.fellenius.net/papers/428%20The%20Red%20Book,%20Basics%20of%20Foundation%20Design%202023.pdf.
Y. Lu, Y. Yang "Effect of Size on the Stability of Narrow Foundation Pits," Advances in Civil Engineering, vol. 2022, no.2 https://doi.org/10.1155/2022/7391622.
M.R. Mahmood, M.Y. Fattah, A. Khalaf "Experimental Investigation on the Bearing Capacity of Skirted Foundations on Submerged Gypseous Soil," Marine Geosciences & Geotechnology, 2020, vol. 38, No. 10, 1151–1162. https://doi.org/10.1080/1064119X.2019.1656311.
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Copyright (c) 2025 Hanan Adnan Hassan, Hadeel Ammar Mohammed, Najwa wasife jassim, Mohammed Yousif Fattah, Noor S. Al-Hassnawi (Author)
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