Pressure Settlement Behaviour and Bearing Capacity of Asymmetric Embedded Plus Shaped Footing on Layered Sand
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PG Student, Department of Civil Engineering, National Institute of Technology, Hamirpur, India
Professor, Department of Civil Engineering, National Institute of Technology, Hamirpur, India
Online publication date: 2021-10-01
Publication date: 2021-09-01
Civil and Environmental Engineering Reports 2021;31(3):152–176
The aim of the present numerical study was to analyse the pressure settlement behaviour and bearing capacity of asymmetric plus shaped footing resting on loose sand overlying dense sand at varying embedment depth. The numerical investigation was carried out using ABAQUS software. The effect of depth of embedment, friction angle of upper loose and lower dense sand layer and thickness of upper loose sand on the bearing capacity of the asymmetric plus shaped footing was studied in this investigation. Further, the comparison of the results of the bearing capacity was made between the asymmetric and symmetric plus shaped footing. The results reveal that with increase in depth of embedment, the dimensionless bearing capacity of the footings increased. The highest increase in the dimensionless bearing capacity was observed at embedment ratio of 1.5. The increase in the bearing capacity was 12.62 and 11.40 times with respect to the surface footings F1 and F2 corresponding to a thickness ratio of 1.5. The lowest increase in the dimensionless bearing capacity was observed at embedment ratio of 0.1 and the corresponding increase in the bearing capacity was 1.05 and 1.02 times with respect to the surface footing for footings F1 and F2 at a thickness ratio of 1.5.
Arabpanahan, M, Mirghaderi SR, Hosseini, A, Sharif, AP and Ghalandarzadeh, A 2019. Experimental-numerical investigation of embedment effect on foundation behaviour under vertical loading, International Journal of Civil Engineering, 17(12),1951-1969.
Bowles, JE 1997. Foundation Analysis and Design, New York: McGraw-Hill Companies.
Dawarci, B, Ornek, M and Turedi, Y 2004. Analysis of multi-edge footing rested on loose and dense sand, Periodica Politechnica Civil Engineering, 58(4), 355-370.
Das, PP, Khatri, VN and Dutta, RK 2019. Bearing capacity of ring footing on weak sand layer overlying a dense sand deposit, Geomechanics and Geoengineering, ISNN: 1748-6025.
El Kasaby El-Sayed AA 1991: Estimation of guide values for the modulus of elasticity of soil, Bulletin of Faculty of Engineering, Assiut University, 19(1),1-7.
Ghazavi, M and Hadiani, N 2005. Bearing capacity of multi-edge foundations, MS thesis, Tehran (Iran): Department of civil engineering, K.N.T. university of Technology.
Ghazavi, M and Mokhtari, S 2008. Numerical Investigation of Load- Settlement Characteristics of Multi-Edge Shallow Foundations. The 12 th International conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG),Goa, India,1-6 October.
Gnananandarao, T, Khatri, VN and Dutta, RK 2018. Pressure settlement ratio behaviour of plus shaped skirted footing on sand, Journal of Civil Engineering (IEB), 46(2), 161-170.
Hanna, AM 1982. Bearing capacity of foundations on a weak sand layer overlying a strong deposit, Canadian Geotechnical Journal, 19(3), 392-396.
Hazell, E 2004. Interaction of closely spaced strip footings. Fourth year project report, Department of engineering science, University of Oxford.
IS 800 2007. Indian Standard for General Construction in Steel - Code of Practice, New Delhi, India, Bureau of Indian Standard (Third Revision).
Kumar, J, Khatri, VN and Kumar, A 2020. Performance of Skirted and Embedded Circular Footing on Sand, Second ASCE India Conference on “Challenges of Resilient and Sustainable Infrastructure Development in Emerging Economies” (CRSIDE2020), March 2-4.
Meyerhof, GG and Hanna, AM 1978. Ultimate bearing capacity of foundations on layered soils under inclined load, Canadian Geotechnical Journal, 15(4), 565-572.
Nur, HR, Islam, MS, and Rokonuzzaman, M 2018. The Effect of Embedment Depth on Bearing Capacity of Strip Footing in Cohesive Frictional Medium, Proceedings of the 4 th International Conference on Civil Engineering for ustainable Development (ICCESD2018), KUET, Khulna, Bangladesh, 9-11 Feb.
Peck, RB, Hanson, WE and Thornburn, TH 1953. Foundation Engineering, New York: John Wiley and sons.
Szypcio, Z and Dołżyk, K 2006. The bearing capacity of layered subsoil, Studia Geotechnica et Mechanica 28(1),45-60.
Thakur, A and Dutta, RK 2020. Experimental and numerical studies of skirted hexagonal footings on three sands,” SN Applied Sciences, 2(3), 487.
Yahia-Chief, H, Mabrouki, A, Benmeddour, D and Mellas, M 2017. Bearing capacity of embedded strip footings on cohesionless soil under vertical and horizontal loads. Geotechnical and Geological Engineering, 35,547-558.
Zou, X, Hu, Y, Hossain, MS and Zhou, M 2018. Capacity of skirted foundation in sand-over-clay under combined V-H-M loading, Ocean Engineering, 159, 201-218.