Geomechanics and Engineering

  • 제3권2호
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  • Pages.117-130
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  • 2011
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Design of geocell reinforcement for supporting embankments on soft ground

  • Latha, G. Madhavi (Department of Civil Engineering, Indian Institute of Science)
  • 투고 : 2010.09.17
  • 심사 : 2011.05.19
  • 발행 : 2011.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

The methods of design available for geocell-supported embankments are very few. Two of the earlier methods are considered in this paper and a third method is proposed and compared with them. In the first method called slip line method, plastic bearing failure of the soil was assumed and the additional resistance due to geocell layer is calculated using a non-symmetric slip line field in the soft foundation soil. In the second method based on slope stability analysis, general-purpose slope stability program was used to design the geocell mattress of required strength for embankment. In the third method proposed in this paper, geocell reinforcement is designed based on the plane strain finite element analysis of embankments. The geocell layer is modelled as an equivalent composite layer with modified strength and stiffness values. The strength and dimensions of geocell layer is estimated for the required bearing capacity or permissible deformations. These three design methods are compared through a design example. It is observed that the design method based on finite element simulations is most comprehensive because it addresses the issue of permissible deformations and also gives complete stress, deformation and strain behaviour of the embankment under given loading conditions.

키워드

참고문헌

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  2. Stability Analysis of Geocell-Reinforced Slopes Using the Limit Equilibrium Horizontal Slice Method vol.17, pp.9, 2017, https://doi.org/10.1061/(ASCE)GM.1943-5622.0000935
  3. Pilot-scale load tests of a combined multilayered geocell and rubber-reinforced foundation vol.20, pp.3, 2013, https://doi.org/10.1680/gein.13.00008
  4. Cyclic Response of Footing with Embedment Depth on Multi-Layered Geocell-Reinforced Bed vol.44, 2016, https://doi.org/10.1088/1755-1315/44/2/022015
  5. Evaluation of a calculation method for embankments reinforced with geocells over soft soils using finite-element analysis vol.22, pp.6, 2015, https://doi.org/10.1680/jgein.15.00024
  6. Comparison of behaviour of basal reinforced piled embankment with two layer of reinforcement vol.16, pp.3, 2011, https://doi.org/10.12989/gae.2018.16.3.233
  7. Numerical investigation of geocell reinforced slopes behavior by considering geocell geometry effect vol.24, pp.6, 2011, https://doi.org/10.12989/gae.2021.24.6.589
  8. Cyclic Behavior of Saturated Clays in Plane Strain State vol.148, pp.1, 2011, https://doi.org/10.1061/(asce)gt.1943-5606.0002721