In geotechnical engineering, the skirt shape is used to improve the load-settlement characteristics of eccentrically loaded shallow footings. The vertical and horizontal insertions of the rigid footing yield extra resistance for overturning and sliding caused by eccentricity. Different settlements and tilts in the footings can be formed by these types of loadings. In this study, the ultimate loads of the skirted footings were experimentally investigated. Different combinations of skirt-structured footings (produced with vertical/inclined insertions and toes) were studied with laboratory model tests in loose and dense sand soil conditions. The test results were then compared with various bearing capacity equations and were determined to be consistent in general. A total of 96 test results showed that the additional skirted parts of the footing increase the ultimate loads. The higher load eccentricity results in a decrease in the ultimate loads of the strip footing.
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References
N. Kaya and M. Ornek, “Experimental and numerical studies of T-shaped footings,” Acta Geotech. Slov., 1, 43-58 (2013).
V. K. Singh, A. Prasad, and R. K. Agrawal, “Effect of soil confinement on ultimate bearing capacity of square footing under eccentric-inclined load,” Electron. J. Geotech. Eng., 12(E), (2007).
E. Sadoglu, E. Cure, B. Moroglu, and B. A. Uzuner, “Ultimate loads for eccentrically loaded model shallow strip footings on geotextile-reinforced sand,” Geotext. Geomembr., 27, 176-182 (2009).
A. Musso and S. Ferlisi, “Collapse of a model strip footing on dense sand under vertical eccentric loads,” Geotech. Geol. Eng., 27, 265-279 (2009).
S. M. Nawghare, S. R. Pathak, and S. H. Gawande, “Experimental investigations of bearing capacity for eccentrically loaded footing,” Int. J. Eng. Sci. Technol., 2(10), 5257-5264 (2010).
E. S. Hosseininia, “Effect of load eccentricity on the bearing capacity of ring footings,” Proc. of GeoShanghai 2018 Int. Conf.: Fundamentals of Soil Behaviours, GSIC 2018, Springer, Singapore (2018).
M. A. Hussein and A. J. Zedan, “Behaviour of rectangular footing subjected to gypseous soil under eccentricity-inclined loads,” Iraq J. Civ. Eng., 11(2), 15-29 (2017).
M. Y. Ouahab, A. Mabrouki, M. Mellas, and D. Benmeddour, “Inclination factors for strip footings on non-homogeneous clay,” Soil Mech. Found. Eng., 54(3), 155-160 (2017).
A. L. Rojas, S. L. Chavarriaa, and M. M. Elizondob, “A new model for T-shaped combined footings part I: Optimal dimensioning,” Geomech. Eng., 14(1), 51-60 (2018).
V. Sharma and A. Kumar, “Behavior of ring footing resting on reinforced sand subjected to eccentric-inclined loading,” J. Rock Mech. Geotech. Eng., 10, 347-357 (2018).
M. Y. Ouahab, A. Mabrouki, M. Mellas, and D. Benmeddour, “Effect of load eccentricity on the bearing capacity of strip footings on non-homogenous clay overlying bedrock,” Transp. Infrastruct. Geotechnol., 5, 169-186 (2018).
K. Sobhan, C. Patra, N. Sivakugan, and B. Das, “Bearing capacity of eccentrically loaded rectangular foundation on sand,” 19th Int. Conf. on Soil Mech. and Geol. Eng., Seoul, Republic of Korea, 17-22 September (2017).
M. Ornek, “Estimation of ultimate loads of eccentric-inclined loaded strip footings rested on sandy soils,” Neural Comput. Appl., 25(1), 39-54 (2013).
N. Kaya, “Experimental analyses of T-shaped footings,” M.Sci. thesis, Iskenderun Technical University, Turkey (2017).
G. G. Meyerhof, “The bearing capacity of foundations under eccentric and inclined loads,” Proc. of the 3rd Int. Conf. on Soil Mech. and Found. Eng., 440-445 (1953).
S. Prakash and S. Saran, “Bearing capacity of eccentrically loaded footings,” J. SMFE Div., 97, 901-921 (1971).
B. A. Uzuner, “Centrally and eccentrically loaded strip foundations on sand,” Ph.D. thesis, Strathclyde University, Glasgow, Scotland (1975).
B. Moroglu, “The bearing capacity of the eccentrically loaded model strip footing on reinforced sand,” Ph.D. thesis, Black Sea Technical University, Turkey (2002).
M. Y. Al-Aghbari and Y. E. A. Mohamedzein, “Improving the performance of circular foundations using structural skirts,” Proc. of the Inst. of Civil Eng.-Ground Improve., 10(3), 125-132 (2006).
S. Golmoghani-Ebrahimi and M. A. Rowshanzamir, “Experimental evaluation of bearing capacity of skirted footings,” Civ. Eng. Arch., 1(4), 103-108 (2013).
S. Kumawat and H. K. Mahiyar, “Experimental study on Tee shaped footing under eccentric vertical loading,” Int. J. Sci. Res. Dev., 2(11), 489-494 (2015).
S. Nighojkar, B. Naik, U. Pendharkar, and H. Mahiyar, “Performance study of bi-angle shape skirted footing in yellow soil subjected to two-way eccentric load,” Proc. of Int. Conf. on Adv. in Civ. Eng., 101-106 (2010).
M. Y. Al-Aghbari, “Settlement of shallow circular foundations with structural skirts resting on sand,” J. Eng. Res., 4(1), 11-16 (2007).
Y. Hu, M. F. Randolph, and P. G. Watson, “Bearing response of skirted foundation on nonhomogeneous soil,” J. Geotech. Geoenviron. Eng., 125(11), 924-935 (1999).
S. Gourvenec and M. F. Randolph, “Consolidation beneath circular skirted foundations,” Int. J. Geomech., 10, 22-29 (2010).
M. Y. Al-Aghbari and Y. E. Mohamedzein, “Bearing capacity of strip foundations with structural skirts,” Geotech. Geol. Eng., 22(1), 43-57 (2004).
J. B. Hansen, “A revised and extended formula for bearing capacity,” Danish Geotech. Inst. Bull., 98, 5-11 (1970).
J. E. Bowles, Foundation Analysis and Design, 5th edn., McGraw-Hill, New York (1996).
K. Terzaghi, Theoretical Soil Mechanics, Wiley, New York (1943).
E. A. Dickin and R. Nazir, “Moment-carrying capacity of short pile foundations in cohesionless soil,” J. Geotech. Geoenviron. Eng., 125(1), 1-10 (1999).
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Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 3, p. 10, May-June, 2021.
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Örnek, M., Çalişici, M., Türedi, Y. et al. Investigation of Skirt Effect on Eccentrically Loaded Model Strip Footing Using Laboratory Tests. Soil Mech Found Eng 58, 215–222 (2021). https://doi.org/10.1007/s11204-021-09731-1
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DOI: https://doi.org/10.1007/s11204-021-09731-1