The Impact of the Depth and Type of Soil Granulation Above the Bearing Capacity of the Ring Footing
American Journal of Civil Engineering
Volume 3, Issue 2-2, March 2015, Pages: 75-79
Received: Nov. 4, 2015;
Accepted: Nov. 5, 2015;
Published: Dec. 14, 2015
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Saeid Azmoodeh, Department of Civil Engineering, Tafresh University, Tafresh, Iran
Nasser Arafati, Department of Civil Engineering, Tafresh University, Tafresh, Iran
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Obtaining bearing capacity of the footing is among the factors influencing the footings design. In this paper, the study of the type and depth impact of the soil granulation above the bearing capacity of the ring footing through the assistance of FLAC software is conducted. The failure criterion intended for the soil is Mohr-Coulomb. The study of the bearing capacity of ring footing of ten thousand cubic meter of Mazut tank of Mashhad Cement Company on three types of soil, topsoil, clay and sand has been carried out. The results indicate that the loading capacity increases by granularity becoming coarser due to the increase of the contact area of the granulation and the increase of friction and the soil structure stability. Also the less the poorer soil depth (in terms of granularity) is, the more limited subsidence is, hence the bearing capacity increases.
Ring Footing, Bearing Capacity, Tank, Type of the Soil, FLAC Software
To cite this article
The Impact of the Depth and Type of Soil Granulation Above the Bearing Capacity of the Ring Footing, American Journal of Civil Engineering. Special Issue: Research and Practices of Civil Engineering in Developing Countries.
Vol. 3, No. 2-2,
2015, pp. 75-79.
Tahoni SH.(2011).His translation of the book Principles of Geotechnical Engineering Braja M. Das, pp.150-153.
Boushehrian JH, Hataf N (2002). Expermental and numerical investigation of the bearing capacity of model circular and ring footing on reinforced sand. Geotext Geomemberanes 2003; 21: 241-56.
Hataf, N, Razavi, MR, (2003) Behavior of ring footing on sand. Iranian Journal of science and Technology, Transaction B, vol. 27, pp.47-56.
Ohri, M.L, Purhit, D.G.M, Dubey, M.L, (1997). Behavior of ring footing on dune sand overlaying dense sand. Pres In ternational conference of civil Engineers, Tehran, Iran. p.4-6.
Fisher, K.(1957).Zur Berechnung der setzung von foundame- nten in der form einer kreisformigen ringflache.Der Bauingenieur, vol. 32, No.5. German, pp.172-174.
Egorov, K.E. (1965). Caclculation of bed for foundation with ring footing. Proceedings of the sixth International Conference on soil mechanical foundation of engineers. Vol.2, Montreal, pp. 41-43.
KumarJ, Ghosh P. Bearing capacity factor Nc for ring footings using the method of characterishtics. Can Geotech J (2005); 40(3): 1474-84.
Terzaghi K. Teoretical soil mechanics. New York: John Wiley and Sons; (1943). 1256-62.
Zhao L. and Wang, J.H. (2007), Vertical bearing capacity for ring footing, Computers and Geotechnical 35 (2009) 292-304.
Zamirian S. (2012), The book modeling and analysis of soil and rock structures in FLAC, Siavash mind. p.123-148.