Single fluid jet-grout strength and deformation properties

  • Author(s) / Creator(s)
  • Abstract: The use of sub-horizontal jet-grout columns in the construction of soft ground tunnels is a popular method to provide excavation support. The sequential installation of jet-grout columns in a tunneling environment will result in the jet-grout columns being loaded in a staged manner, resulting in the jet-grout material properties and installation order affecting the magnitude and distribution of surface settlements and face deformations. A laboratory program was carried out to quantify the short-term (< 24 h) development of strength and stiffness of a grout with a composition similar to that found in the construction of jet-grout columns. The laboratory tests were conducted at 8 degrees C to simulate the ground temperatures. Also the laboratory test cylinders were insulated to simulate the boundary condition differences between 600-mm-diameter jet-grout columns in soil and the 76-mm-diameter laboratory samples.

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    Article (Published)
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    © 2006 Elsevier. This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
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  • Citation for previous publication
    • Coulter, S., & Martin, C. D. (2006). Single fluid jet-grout strength and deformation properties. Tunnelling and Underground Space Technology, 21(6), 690-695. DOI: 10.1016/j.tust.2005.12.136.