A Parametric Study of Stability of Geotextile-Reinforced Soil Above an Underground Cavity

Abbas Tahmasebi poor, R. Noorzad, E. Shooshpasha, Amin Barari

Research output: Contribution to journalJournal articleResearchpeer-review

10 Citations (Scopus)

Abstract

A study based on two-dimensional finite element analyses under plane strain condition was performed by PLAXIS code to investigate the behavior of geotextilereinforced soil above an underground cavity. The effects of depth of single layer, tensile stiffness, number and length of reinforcement layers, and size of cavity on settlement of ground surface and head of cavity have been investigated. Results indicated that when a single layer of reinforcement is used, there is a critical depth at which settlements are maximum. Maximum settlements reduce with increase in stiffness of reinforcement. Also settlements reduce with increase in number and length of reinforcement but there is a critical value for number and length of geotextile which increase more than this certain value has not significant effect on reduction of settlements. Also for a given load and tensile stiffness, increase in length of reinforcement has more effect for higher diameter of cavity.
Original languageEnglish
JournalArabian Journal of Geosciences
Volume5
Issue number3
Pages (from-to) 449-456
ISSN1866-7511
DOIs
Publication statusPublished - 2012

Keywords

  • Finite element
  • Reinforcement
  • Cavity
  • Geotextile
  • PLAXIS

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