Geomechanics and Engineering

  • 제15권2호
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  • Pages.739-744
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  • 2018
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
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Surface displacements due to tunneling in granular soils in presence and absence of geosynthetic layer under footings

  • Rebello, Nalini E. (Department of Civil Engineering, St. Joseph Engineering College) ;
  • Shivashankar, R. (Department of Civil Engineering, NITK) ;
  • Sastry, Vedala R. (Department of Mining Engineering, NITK)
  • 투고 : 2014.02.22
  • 심사 : 2017.11.29
  • 발행 : 2018.06.10
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents the results of numerical modeling studies on the effect of displacements of tunneling in granular soils. Presence of building loads is considered, to find displacement generated at the surface on tunnel. Effect of varying eccentricities of building is simulated, to find influence of building on vertical and horizontal displacement. Studies were carried out in two cases of with and without a geosynthetic layer installed at the bottom of the footing. Results of analysis revealed, the presence of geosynthetic layer under footing, with building placed on centre line, reduced the surface displacements compared to displacement generated without geosynthetic layer. Presence of geosynthetic layer under footing had a dominant effect in reducing displacements in high storey structures. However, when the building was shifted to greater eccentricities from centre line, presence of geosynthetic layer, led to insignificant reduction of displacements on the centre line at the surface.

키워드

참고문헌

  1. Ahmed, M. and Iskander, M. (2011), "Analysis of tunnellinginduced ground govements using transparent soil models", J. Geotech. Geoenviron. Eng., 137(5), 525-535. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000456
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  6. Potts, D.M. and Addenbrooke, T.I. (1997), "A structure's influence on tunnelling-induced ground movements", Proc. Inst. Civ. Eng. Geotech. Eng., 125(2), 109-125. https://doi.org/10.1680/igeng.1997.29233
  7. Shivashankar, R. (2013), "Geotechnical engineering with geosynthetics-an overview", Proceedings of the 3rd International Engineering Symposium (IES 2013), Kumamoto, Japan, March.
  8. Son, M.L. and Cording, E.J. (2011), "Responses of buildings with different structural types to excavation induced ground settlements", J. Geotech. Geoenviron. Eng., 137(4), 323-333. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000448

피인용 문헌

  1. Three-dimensional finite element analysis of urban rock tunnel under static loading condition: Effect of the rock weathering vol.25, pp.2, 2018, https://doi.org/10.12989/gae.2021.25.2.099