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Edged Inverted Folded Plate Shell Strip Foundation Bearing Capacity Comparison with strip footing on Sandy Soil | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 7، دوره 10، شماره 3 - شماره پیاپی 27، آبان 2022، صفحه 121-140 اصل مقاله (2.16 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2021.22649.1495 | ||
| نویسندگان | ||
| Keyhan Sajedi1؛ Jafar Bolouri Bazzaz* 2 | ||
| 1Ph.D. Candidate, Civil Engineering Department, Ferdowsi University of Mashhad, Mashhad, Iran | ||
| 2Associate Professor, Civil Engineering Department, Ferdowsi University of Mashhad, Mashhad, Iran | ||
| تاریخ دریافت: 13 فروردین 1400، تاریخ بازنگری: 14 آبان 1400، تاریخ پذیرش: 17 آبان 1400 | ||
| چکیده | ||
| Using shell foundations as well as their benefits in the case of improved bearing capacity is investigated these days, especially strip folded shape. Because of more contact in soil, these type of shells have more bearing capacity than shallow foundations. In this research the behaviour of Strip Inverted Folded Plate Shell Foundation is studied on sandy soil. The elastic perfectly plastic numerical analyses and experimental tests are analysed and compared with shallow foundation. The effect of adding edge, variation in width and shell angle are considered. More than 45 geometrical shells models have been selected for research and the results are compared with common strip foundation in same width. Digital stress transducers are used for integrity of stresses and numerical model verification. The results indicate that adding edge with the same width and decreasing the B/D ratio in shell strip foundation improves the bearing capacity. Also when an edge on the toe of the foundation equivalent to the embedment depth is used the bearing capacity is improved in the range of 3-50%. Variation in shell angle with the same width results in increasing the bearing capacity up to two times. Finally, it is recommended to use a shell strip foundation with of 45º to 60º and with an edge equal to embedment depth. | ||
| کلیدواژه‌ها | ||
| Folded plate shell؛ Elastic perfectly plastic Analysis؛ Stress؛ Settlement؛ Bearing capacity | ||
| مراجع | ||
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[1] Kurian, N. P., (2006). "Shell foundations", Alpha Science International Ltd., India.
[2] Alraziqi, Adel Ahmed, (2006). "Geotechnical behaviour of shell footings", Ph.D. Thesis, University Putra Malaysia.
[3] Abdel-Rahman, M., and Hanna, A.M., (1990). "Ultimate Bearing Capacity of Triangular Shell Footings on Sand", Journal of Geotechnical Engineering, ASCE, Vol. 116, No. 12, pp. 1851-1863.
[4] Hanna, A.M., and Abdel-Rahman M., (1998). "Experimental investigation on shell foundations on dry sand", Canadian Geotechnical Journal, No. 35, pp. 828-846.
[5] Kurian, N.P., and Jayakrishna, Devaki, V.M., (2005). "Analytical studies on the geotechnical performance of shell foundations", Canadian Geotechnical Journal, No. 42, pp.562–573.
[6] Bujang B.K.H., and Thamer A.M., (2006). "Finite Element Study Using FE Code (PLAXIS) on the Geotechnical Behaviour of Shell Footing". Journal of Computer Science, Vol.2, No.1, pp. 104-108.
[7] Esmaili, D., and Hataf N., (2008). "Experimental and Numerical Investigation of Ultimate Bearing Capacity of Shell Foundations on Reinforced and Unreinforced Sand", Iranian Journal of Science and Technology, Vol. 32, No. B5.
[8] Shaligram P.S., (2011). "Behavior of Triangular Shell Strip Footing On Geo-Reinforced Layered Sand", International Journal of Advanced Engineering Technology, Vol.2, No.2, pp.192-196.
[9] Rinaldi, R., (2012). "Inverted Shell Foundation Performance in Soil ", Ph.D. Thesis, Concordia University.
[10] Azzam, W.R., Nasr, A.M., (2015). Bearing capacity of shell strip footing on reinforced sand, Journal of Advanced Research, S2090-1232(14)00041-1.
[11] Al-Azzawi A., (2013). "A Study of the Behavior of Shell Footings using Finite Element Analysis", Eng. & Tech. Journal, Vol. 31, Part (A), No.19.
[12] Sajedi, K. et al., (2018). "Numerical and Experimental Comparisons of Different Behavior Shapes of Folded Plate Shell Foundation on Sandy Soil", Civil Engineering Sharif, Digital Identifier (DOI): 10.24200/ j30.2018.1334
[13] Sajedi, K. et al., (2019). "Elastic-Plastic Analysis of Inverted Folded Shell Strip Foundation on Sandy Soil", Journal of civil and environmental engineering, Article 2, Volume 47.4, Issue 89, Winter 2018, Page 15-26.
[14] Wood, D.M., (2004). "Geotechnical Modelling", E. & F.N. Spon Press, London.
[15] Jafarian, Y., Haddad, A., and Mehrzad, B., (2016). "Load settlement mechanism of shallow foundations rested on saturated sand with upward seepage", International Journal of Geomechanics, 17(3), pp. 1-14.
[16] Vargas-Monge, W., (1998). "Ring shear tests on large deformation of sand", Ph.D. thesis, University of Tokyo.
[17] Bishop, A.W., Green, G.E., Garga, V.K., Andresen, A. and Brown, J.D., (1971). "A new ring shear apparatus and its application to the measurement of residual strength", Geotechnique, 21(4), pp. 273-328.
[18] Abdollahi M. and Bolouri Bazaz J., (2017). "Reconstitution of Sand Specimens Using a Rainer System", International Journal of Engineering, Vol. 30, No. 10, pp. 1451-1463.
[19] Bolouri Bazaz J. and Mobinizad M. (2010). "Evaluation of the behaviour of Nahrein earth dam using finite element method and comparison with real magnitudes derived from instrumentation data", Journal of Iran water research (in Persian)”, Vol. 4, No. 6, pp. 1-10.
[20] Yeganeh N., Bolouri Bazaz J. and Akhtarpour A. (2015). "Seismic analysis of the soil–structure interaction for a high rise building adjacent to deep excavation", Soil Dynamics and Earthquake Engineering. Vol. 79, pp. 149-170. | ||
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