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A Quasi-periodic Approximation Based Model Reduction for Limit Analysis of Micropile Groups

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Abstract

The behavior of soils reinforced by micropile networks is still not fully understood due to the lack of accurate modelling capabilities. Particularly, the complex geometry of large soil-micropile systems makes accurate calculation of the bearing capacity of the reinforced soil a computational challenge. This complexity requires highly detailed and finely discretized models to achieve reasonable accuracy using direct numerical methods. Such models lead to large scale numerical optimization problems that are hardly tractable using a personal computer.

In the present paper a model reduction method is made capable of solving the numerical static limit analysis problem of soil reinforced by a group of micropiles according to a 2D plane strain model. The method has been successfully applied to the limit analysis problem of a soil reinforced by a large group of micropiles when resources did not permit solution of the full model.

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Correspondence to Joseph Pastor .

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Kammoun, Z., Pastor, J., Smaoui, H. (2014). A Quasi-periodic Approximation Based Model Reduction for Limit Analysis of Micropile Groups. In: Spiliopoulos, K., Weichert, D. (eds) Direct Methods for Limit States in Structures and Materials. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6827-7_11

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  • DOI: https://doi.org/10.1007/978-94-007-6827-7_11

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-007-6826-0

  • Online ISBN: 978-94-007-6827-7

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