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Geomechanics and Engineering Volume 13, Number 4, October 2017 , pages 701-714 DOI: https://doi.org/10.12989/gae.2017.13.4.701 |
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Uplift capacity of horizontal anchor plate embedded near to the cohesionless slope by limit analysis |
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Paramita Bhattacharya and Sagarika Sahoo
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| Abstract | ||
| The effect of nearby cohesionless sloping ground on the uplift capacity of horizontal strip plate anchor embedded in sand deposit with horizontal ground surface has been studied numerically. The numerical analysis has been carried out by using the lower bound theorem of limit analysis with finite elements and linear optimization. The results have been presented in the form of non-dimensional uplift capacity factor of anchor plate by changing its distance from the slope crest for different slope angles, embedment ratios and angles of soil internal friction. It has been found that the decrease in horizontal distance between the edge of the anchor plate and the slope crest causes a continuous decrease in uplift capacity of anchor plate. The optimum distance is that distance between slope crest and anchor plate below which uplift capacity of an anchor plate has been found to decrease with a decrease in normalized crest distance from the anchor plate in presence of nearby sloping ground. The normalized optimum distance between the slope crest and the anchor plate has been found to increase with an increase in slope angle, embedment ratio and soil internal friction angle. | ||
| Key Words | ||
| strip anchor; uplift capacity; limit analysis; finite elements; cohesionless slope | ||
| Address | ||
| Paramita Bhattacharya and Sagarika Sahoo: Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India | ||