Single fluid jet-grout strength and deformation properties

• Author(s) / Creator(s)

  • Coulter, S.
  • Martin, C. D.

• 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.

• Date created

  2006

• Subjects / Keywords

  • Grout strength
  • Jet-grout columns
  • Grout stiffness

• Type of Item

  Article (Published)

• DOI

  https://doi.org/10.7939/R3221J

• License

  © 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.