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Geomechanics and Engineering Volume 35, Number 3, November10 2023 , pages 287-306 DOI: https://doi.org/10.12989/gae.2023.35.3.287 |
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Finite element limit analysis of the bearing capacity of an obliquely loaded strip footing on granular soil placed adjacent to vertically loaded existing footing |
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R. Sarvesh, V. Srinivasan and Anjan Patel
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| Abstract | ||
| The present study explores the impact of strip footing's ultimate load-carrying capacity on granular soil under oblique loads. At the same time, it is lined up subsequently nearer to the existing footing. The numerical simulations have been done by finite element limit analysis (FELA). Upper-bound (UB), lower-bound (LB) and adaptive mesh refinement proficiencies have been harnessed to predict the précised solution for assessing the new footing ultimate load-carrying capacity under oblique loading while lined up subsequently nearer to vertically loaded existing footing. The impact of the new footing's ultimate load-carrying capacity has been well-considered by considering characteristics such as load inclination, angle of internal friction of the soil, footing width and spacing between the footings. The outcome of the current numerical analysis for isolated footing and interfering footing has been validated using accessible literature. For various soil friction angles, load inclination on the new footing interference (s) factors was computed using different spacing ratios for symmetrical and asymmetrical footing widths. The charts were developed for the new footing lined up nearer to the existing footing in response to interference factor that varies with the spacing ratio, load inclination and width ratio of the new footing. | ||
| Key Words | ||
| adaptive mesh refinement; design charts; FELA; interference effect; upper-bound and lower-bound | ||
| Address | ||
| R. Sarvesh, V. Srinivasan and Anjan Patel: Department of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur – 440 010, India | ||