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Behavior of Geosynthetics-Strengthened Saturated Cushion Layer in Disconnected Piled-Raft System Under Seismic Loading

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Abstract

The geosynthetic reinforcement has been widely used in earthen structures, such as in geosynthetic-reinforced pile-supported embankments and buried pipes which reduces the vertical stresses on the buried structures and consequently reduces the soil arching and soil degradation under local loading. The soil arching had been investigated previously using trapdoor tests under soil self-weight and/or uniform surcharge, but the effects of using geosynthetic material in reinforcement of the cushion layer in disconnected piled-raft system under seismic loading in saturated sandy soil have been investigated in this work. This study addresses the settlement and mitigation of the acceleration in the foundation under seismic load by conducting a series of physical model tests using a shaking table. The degradation of the cushion layer soil in a saturated state and the reinforcement of the cushion layer with one, two, and three layers of geosynthetic materials with different thicknesses of cushion layer will be investigated to understand the interaction mechanisms between raft-cushion-piles-soil. The results of tests showed increasing the settlement of disconnected piled-raft systems with increasing the thickness of the cushion layer, but the reinforcement of such layer with two layers of geosynthetic materials will reduce settlement better than using one layer of geosynthetic material.

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References

  1. O'Neil MW (1996) Case histories of pile-supported rafts. Report for ISSMFE, Technical Committee TCl8, Univ. of Houston

  2. HG Poulos JC Small H Chow 2011 Piled raft foundations for tall buildings Geotech Eng J SEAGS AGSSEA 42 2 78 84

    Google Scholar 

  3. Burland JB (1995) Piles as settlement reducers. Invited Lecture. XIX Convegno Italiano di Geotecnica, vol 2, pp 21–34

  4. AM Ali MO Karkush AN Al-Jorany 2023 Numerical modeling of connected piled raft foundation under seismic loading in layered soils J Mech Behav Mater 32 1 20220250

    Article  Google Scholar 

  5. Karkush MO, Mohsin AH, Saleh HM, Noman BJ (2022) Numerical analysis of piles group surrounded by grouting under seismic load. In: Geotechnical engineering and sustainable construction: sustainable geotechnical engineering. Springer Singapore, Singapore, pp 379–389

  6. Alkaby AD, Karkush MO (2022) Numerical modeling of screw piles performance under static and seismic loads in soft soils. In: Geotechnical engineering and sustainable construction: sustainable geotechnical engineering. Springer Singapore, Singapore, pp 291–303

  7. Karkush MO, Jihad AG, Jawad KA, Ali MS, Noman BJ (2021) Seismic analysis of floating stone columns in Soft Clayey Soil. In: E3S web of conferences, vol 318. EDP Sciences, p 01008

  8. J Lee D Park K Choi 2014 Analysis of load sharing behavior for piled rafts using normalized load response model Comput Geotech 57 65 74

    Article  Google Scholar 

  9. A Kumar D Choudhury R Katzenbach 2016 Effect of earthquake on combined pile–raft foundation Int J Geomech 16 5 04016013

    Article  Google Scholar 

  10. Kumar A, Choudhury D (2017) Load sharing mechanism of combined pile-raft foundation (CPRF) under seismic loads. In: Geotechnical Engineering Journal of the Southeast Asian Geotechnical Society (SEAGS) Association of Geotechnical Societies in Southeast Asia (AGSSEA), vol 48, no 3, pp 95–101

  11. J Roy A Kumar D Choudhury 2020 Pseudostatic approach to analyze combined pile–raft foundation Int J Geomech 20 10 06020028

    Article  Google Scholar 

  12. J Roy A Kumar D Choudhury 2018 Natural frequencies of piled raft foundation including superstructure effect Soil Dyn Earthq Eng 112 69 75

    Article  Google Scholar 

  13. A Kumar D Choudhury 2018 Development of new prediction model for capacity of combined pile-raft foundations Comput Geotech 97 62 68

    Article  Google Scholar 

  14. C Heitz J Lüking HG Kempfert 2008 Geosynthetic reinforced and pile supported embankments under static and cyclic loading Strain 1 1 5

    Google Scholar 

  15. Randolph MF (1994) Design methods for pile groups and piled rafts. In: Proceedings of 13th ICSMGE, vol 5, pp 61–82

  16. Wong IH, Chang MF, Cao XD (2000) 17. Raft foundations with disconnected settlement-reducing piles. Design applications of raft foundations, pp 469–86

  17. Burghignoli A, Jamiolkowski MB, Viggiani C (2007) Geotechnics for the preservation of historic cities and monuments: components of a multidisciplinary approach. In: Proceedings of the 14th European conference on soil mechanics and geotechnical engineering, Madrid, Spain, pp 3–38

  18. Jamiolkowski M, Ricceri G, Simonini P (2009) Safeguarding Venice from high tides: site characterization and geotechnical problems. In: Proceedings of the 17th international conference on soil mechanics and geotechnical engineering, vols 1, 2, 3 and 4. IOS Press, pp 3209–3227

  19. RW Cooke 1986 Piled raft foundations on stiff clays—a contribution to design philosophy Geotechnique 36 2 169 203

    Article  Google Scholar 

  20. SH Tabatabaiefar B Fatahi B Samali 2014 Numerical and experimental investigations on seismic response of building frames under influence of soil-structure interaction Adv Struct Eng 17 1 109 130

    Article  Google Scholar 

  21. AM Al-Salakh BS Albusoda 2020 Experimental and theoretical determination of settlement of shallow footing on liquefiable soil J Eng 26 9 155 164

    Article  Google Scholar 

  22. Alhassani AM, Aljorany AN (2023) Experimental and Numerical Modeling of Connected and Disconnected Piled Raft. KSCE J Civil Eng 1–3

  23. American Society of Testing and Materials (ASTM) (2006) Standard test method for specific gravity of soil solids by water pycnometer. ASTM D854, West Conshohocken, Pennsylvania, USA

  24. American Society of Testing and Materials (ASTM) (2006) Standard Test Method for Classification of Soils for Engineering Purposes (Unified Soil Classification System). ASTM D2487-06, West Conshohocken, Pennsylvania, USA

  25. American Society of Testing and Materials (ASTM) (2006) Standard test method for particle size-analysis of soils. ASTM D422-63 (2002), West Conshohocken, Pennsylvania, USA

  26. American Society of Testing and Materials (ASTM) (2006) Standard test methods for maximum index density and unit weight of soils using a vibratory table. ASTM D4253-00, West Conshohocken, Pennsylvania, USA

  27. American Society of Testing and Materials (ASTM) (2006) Standard test method for minimum index density and unit weight of soils and calculation of relative density. ASTM D4254-00, West Conshohocken, Pennsylvania, USA

  28. Karkush MO, Ali SD, Saidik NM, Al-Delfee AN (2022) Numerical modeling of sheet pile quay wall performance subjected to earthquake. In: Geotechnical engineering and sustainable construction: sustainable geotechnical engineering. Springer Singapore, Singapore, pp 355–365

  29. Al-Khalidi EE, Lwti NK, Karkush MO, Aljuboori WA (2022) Numerical assessment of ring foundation settlement under seismic loading. In: International conference on geotechnical engineering-Iraq. Springer Nature Singapore, Singapore, pp 230–242

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Authors and Affiliations

  1. Civil Engineering Department, University of Baghdad, Baghdad, Iraq

    Amer Jihad & Mahdi Karkush

  2. Road and Transport Engineering Department, Al-Qadisiyah University, Al-Qadisiyah, Iraq

    Amer Jihad

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  1. Amer Jihad
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Correspondence to Mahdi Karkush.

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Jihad, A., Karkush, M. Behavior of Geosynthetics-Strengthened Saturated Cushion Layer in Disconnected Piled-Raft System Under Seismic Loading. Indian Geotech J (2024). https://doi.org/10.1007/s40098-024-00877-x

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