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Numerical Analysis of Piled Raft Interaction in Soft Clay

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Recent Advances in Geo-Environmental Engineering, Geomechanics and Geotechnics, and Geohazards (CAJG 2018)

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Abstract

The piled raft (PR) system was developed to use the load-carrying capabilities of both shallow foundations (rafts) and deep foundations (piles). These components interact with each other through a complex soil-structure interaction scheme. The interaction effects affect the overall load response of PR. In this study, the explicit finite difference code FLAC3D (Fast lagrangian Analyses od Continua) was used to investigate the behavior of PR subjected to vertical loading. Several foundations embedded in soft clay were considered. The results prove that even in the case of soft clay, the load-carrying capacity of the raft and piles, when combined in a PR, becomes different from those of unpiled raft (UR) and group of piles (GP), due to the interactions between raft and piles.

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References

  1. Davis, E.H., Poulos, H.G.: The analysis of piled raft systems. Aust. Geotech. J. 2(1), 21–27 (1972)

    Google Scholar 

  2. Horikoshi, K., Randolph, M.F.: Centrifuge modelling of piled raft foundations on clay. Geotechnique 46(4), 741–752 (1996)

    Article  Google Scholar 

  3. Cooke, R.W.: Piled raft foundations on stiff clays—a contribution to design philosophy. Geotechnique 36(2), 169–203 (1986)

    Article  Google Scholar 

  4. de Sanctis, L., Mandolini, A.: Bearing capacity of piled rafts on soft clay soils. J. Geotech. Geoenviron. Eng. 132(12), 1600–1610 (2006)

    Article  Google Scholar 

  5. Lee, J., Donggyu, P., Kyujin, C.: Analysis of load sharing behavior for piled rafts using normalized load response model. Comput. Geotech. 57, 65–74 (2014)

    Google Scholar 

  6. Lee, J., Park, D., Park, D., Park, K.: Estimation of load-sharing ratios for piled rafts in sands that includes interaction effects. Comput. Geotech. 63, 306–314 (2015)

    Article  Google Scholar 

  7. Fast Lagrangian Analysis of Continua in 3 Dimensions. ITASCA Consulting Group, Inc, Minneapolis (2013)

    Google Scholar 

  8. Nguyen, N.: Modélisation du comportement des fondations profondes dans les argiles molles. Diss. Laboratoire Sols, Solides, Structures-Risques, IP Grenoble (2008)

    Google Scholar 

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Correspondence to Sadok Benmebarek .

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Ferchat, A., Benmebarek, S., Houhou, M.N. (2019). Numerical Analysis of Piled Raft Interaction in Soft Clay. In: Kallel, A., et al. Recent Advances in Geo-Environmental Engineering, Geomechanics and Geotechnics, and Geohazards. CAJG 2018. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-01665-4_78

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