Bearing Capacity of Foundations over Rock Slopes-Slip Lines and FELA Solutions

Keshavarz, A and Kumar, J (2024) Bearing Capacity of Foundations over Rock Slopes-Slip Lines and FELA Solutions. In: International Journal of Geomechanics, 24 (10).

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Abstract

The ultimate bearing capacity of a strip footing placed horizontally over the edge of a sloping rock mass has been determined on the basis of the stress characteristics method (SCM) using the generalized Hoek-Brown yield criterion. The effect of footing-rock interface roughness on the results has also been analyzed. The problem has been solved, in addition, with the usage of the adaptive mesh-based finite-element limit analysis (FELA) method. The results are provided in the form of nondimensional bearing capacity factor (N�) as a function of different input material parameters for several slope inclinations. After analyzing all the results, an expression on the basis of the regression analysis has also been generated to compute the factor N� as a function of different input variables. The bearing capacity obtained from the SCM has been found to lie between the lower and upper bounds of the FELA, and the failure patterns from the two sets of analyses match quite closely with each other for both smooth and rough footings. The results are also found to be in good agreement with the existing solutions from the literature. © 2024 American Society of Civil Engineers.

Item Type:	Journal Article
Publication:	International Journal of Geomechanics
Publisher:	American Society of Civil Engineers (ASCE)
Additional Information:	The copyright for this article belongs to the publisher.
Keywords:	Finite element method; Regression analysis; Rock mechanics; Rocks, Characteristic method; Finite element limit analysis; Hoek-Brown; Hoek-brown yield criteria; Rock slope; Rock-mass; Slip lines; Slope; Stress characteristics; Yield criterion, Bearing capacity, bearing capacity; finite element method; footing; foundation; rock mechanics; slope dynamics; soil-structure interaction
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	29 Aug 2024 11:13
Last Modified:	29 Aug 2024 11:13
URI:	http://eprints.iisc.ac.in/id/eprint/85961

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