Bearing Capacity of Foundations with Inclined Groundwater Seepage

Kumar, Jyant and Chakraborty, Debarghya (2013) Bearing Capacity of Foundations with Inclined Groundwater Seepage. In: INTERNATIONAL JOURNAL OF GEOMECHANICS, 13 (5). pp. 611-624.

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Abstract

The ultimate bearing capacity of strip foundations in the presence of inclined groundwater flow, considering both upward and downward flow directions, has been determined by using the lower bound finite-element limit analysis. A numerical solution has been generated for both smooth and rough footings placed on frictional soils. A correction factor (f gamma), which needs to be multiplied with the N gamma-term, has been computed to account for groundwater seepage. The variation of f gamma has been obtained as a function of the hydraulic gradient (i) for various inclinations of groundwater flow. For a given magnitude of i, there exists a certain critical inclination of the flow for which the value of f gamma is minimized. With an upward flow, for all flow inclinations, the magnitude of f gamma always reduces with an increase in the value of i. An example has also been provided to illustrate the application of the obtained results when designing foundations in the presence of groundwater seepage.

Item Type:	Journal Article
Publication:	INTERNATIONAL JOURNAL OF GEOMECHANICS
Publisher:	ASCE-AMER SOC CIVIL ENGINEERS
Additional Information:	copyright for this article belongs to AMER SOC CIVIL ENGINEERS
Keywords:	Load bearing capacity; Foundations; Groundwater; Seepage; Limit analysis; Numerical models; Plasticity; Bearing capacity; Foundations; Groundwater seepage; Limit analysis; numerical modeling; Plasticity
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	30 Nov 2013 13:23
Last Modified:	30 Nov 2013 13:23
URI:	http://eprints.iisc.ac.in/id/eprint/47849

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