Abstract
The paper presents a method for the estimation of bearing capacity of a strip footing resting on a reinforced foundation bed over soft ground stabilized with a granular trench. Meyerhof’s two-layered punching failure mechanism along with Madhav and Vitkar’s solution for bearing capacity of granular trench supported footing resting on soft ground, form the basis of the analysis. The bearing capacity of a strip footing in a two-layered system of reinforced granular fill overlying soft ground stabilized with granular trench is estimated by incorporating the contribution from the axial tension mobilized in the reinforcement to those from the granular fill and the stabilized soft ground. A parametric study quantifies the effect of various parameters on the degree of bearing capacity improvement. The predictions are compared with experimental studies available in literature. The percentage improvement in the bearing capacity of the strip footing due to reinforcement of the soft ground with a granular trench coupled with unreinforced and reinforced granular fill is established through the comparisons.
Similar content being viewed by others
References
Madhav MR, Vitkar PP (1978) Strip footing on weak clay stabilized with granular trench or pile. Can Geotech J 15:605–609
Hamed JT, Das BM, Echelberger WF (1986) Bearing capacity of a strip foundation on granular trench in soft clay. Civ Eng Pract Des Eng 5(5):359–376
Das BM (1988) Bearing capacity of shallow foundation on a granular trench in ground [online]. In: Proceedings of 5th Australia-New Zealand conference on geomechanics: predictions versus performance; preprints of papers. Institution of Engineers, Australia, Barton, no. 88/11, pp 278–282
Venkatappa Rao G, Kate JM, Shamsher FH (1994) Soil improvement with geosynthetics. In: Proceedings of 13th international conference on soil mechanics and foundation engineering, New Delhi, pp 1237–1240
Bouassida M, Hadhri T (1995) Extreme load of soils reinforced by columns: the case of an isolated column. Soils Found 35(1):21–35
Unnikrishnan N, Rajan S (2012) Bearing capacity of strip footings on geosynthetic encapsulated granular trenches. In: Proceedings of international conference on ground improvement and ground control, ISBN: 978-981-07-3560-9, pp 977–983
Bouassida M, Jellali B, Lyamin A (2014) Ultimate bearing capacity of a strip footing on ground reinforced by a trench. Int J Geomech ASCE, ISSN: 1532-3641/06014021(8), doi:10.1061/(ASCE)GM.1943-5622.0000418
Meyerhof GG (1974) Ultimate bearing capacity of footings on sand layer overlying clay. Can Geotech J 11(2):223–229
Rajyalakshmi K, Madhav MR, Ramu K (2011) Bearing capacity of reinforced strip foundation beds on compressible clays. Indian Geotech J 42(4):294–308
Vesic AS (1972) Expansion of cavities in infinite soil mass. J Soil Mech Found Div ASCE 98(3):265–290
Rethaliya RP, Verma AK (2009) Strip footing on sand overlying soft clay with geotextile interface. Indian Geotech J 39(3):271–287
Lee KM, Manjunath VR, Dewaikar DM (1999) Numerical and model studies of strip footing supported by a reinforced granular fill—soft soil system. Can Geotech J 36(5):793–806
Bolton MD (1986) The strength and dilatancy of sands. Geotechnique 36(1):65–78
Fannin RJ, Eliadorani A, Wilkinson JMT (2005) Shear strength of cohesionless soils at low stress. Geotechnique 55(6):467–478
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Abhishek, S.V., Rajyalakshmi, K. & Madhav, M.R. Bearing Capacity of Strip Footing on Reinforced Foundation Bed over Soft Ground with Granular Trench. Indian Geotech J 45, 304–317 (2015). https://doi.org/10.1007/s40098-014-0138-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40098-014-0138-y