A 4D Soil-Structure Interaction Model Testing Apparatus

Thomas Riccio, Tomas Romero, Marco Previtali, Miguel Mánica, Matteo Ciantia

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Abstract

A new three-axis loading frame has been developed to enable real-time visualization of in-situ soil and rock structure interactions via X-ray tomography during small-scale model testing. The constructed frame is capable of performing a wide range of small-scale 1g tests and can accommodate monotonic and cyclic actuation under both load and displacement control. The compact size of the system enables remote multi-axis operation from within an X-ray cone-beam scanning bay, a capability which is owed to a comprehensive design process. Design and fabrication involved a blend of physical and numerical experiments to assess suitable construction materials and performance. In this scope, the new equipment is discussed and its capability is showcased.
Original languageEnglish
Article numberGTJ20230581
Pages (from-to)1181-1204
Number of pages24
JournalGeotechnical Testing Journal
Volume47
Issue number6
Early online date15 Oct 2024
DOIs
Publication statusPublished - 1 Nov 2024

Keywords

  • loading frame
  • physical testing
  • pile installation
  • soil-structure interaction
  • X-ray computed tomography

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