New soil nail material - Pilot study of grouted GFRP pipe nails in Korea and Hong Kong

Yung Ming Cheng, Yong Ki Choi, Albert T. Yeung, L. G. Tham, Alfred S.K. Au, W. B. Wei, J. Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

26 Citations (Scopus)


The current method of steel bar soil nail construction is both labor intensive as well as expensive and many engineers are considering the use of new soil nail materials. In the present pilot test, an innovative soil nail is constructed by light weight high strength glass fiber-reinforced plastic (GFRP) pipe with the Tube a' Manchette grouting technique. It is found that this new soil nail system can be handled easily on sites with difficult access. Extensive laboratory as well as field tests were carried out on the GFRP pipe nails and the grouted soil mass and numerical modeling of a field test was performed. The installation of the GFRP pipe, laboratory, and field test results that were carried out in Hong Kong and Korea are discussed in this paper.
Original languageEnglish
Pages (from-to)93-102
Number of pages10
JournalJournal of Materials in Civil Engineering
Issue number3
Publication statusPublished - 26 Feb 2009


  • Fiber reinforced polymers
  • Hong Kong
  • Korea
  • Material properties
  • Soil nailing

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)
  • Mechanics of Materials


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