Rail Transit

XTOP3D DIC technology is used in the field of rail transit for structural displacement and deformation testing, deformation, seismic resistance, and failure mechanism analysis of bridge, tunnel, and slope structures, and testing of similar material models in geotechnical tunnel engineering. This research can provide data basis for structural performance and deformation and failure mechanisms in complex service environments, ensuring the safe operation of rail transit infrastructure.

DIC measurement of rail transit structure deformation, DIC measurement of bridge slope structure displacement, DIC test of similar material model, 3D strain measurement system, XTOP3D
Empowering Scenarios
  • In railway track structure displacement testing, DIC technology can be used to analyze the three-dimensional displacement changes and vibrations of the track structure when a train passes, significantly improving measurement accuracy and data reliability. It can also measure tiny displacements and deformations of track welds, allowing for the timely identification of potential structural problems.

    Track displacement and deformation detection

    Track displacement and deformation detection

  • 3D DIC technology is used for bridge structural health monitoring, analyzing the lateral displacement and strain of bridge supports under service loads, studying the mechanical model of bridge main beams, and analyzing the deformation of key load-bearing structures and full-field displacement changes of bridges without affecting structural functions.
    Bridge load structure deformation detection

    Bridge load structure deformation detection

  • Tunnel excavation will disturb the ground. By building a similar material model and using DIC technology for tunnel excavation structure monitoring, we can analyze the displacement changes and collapse evolution process of the geological layer, intuitively reveal the surface subsidence trajectory, and provide data support for engineering risk assessment.
    Tunnel structure deformation simulation test

    Tunnel structure deformation simulation test

  • Using DIC technology, combined with large-scale shaking table simulation tests, we analyze the displacement response characteristics of rock slopes under different earthquake intensities, observe the collapse of slope structures during simulated earthquakes, and measure the overall displacement of slopes, which helps to more accurately reinforce and protect slopes.
    Slope deformation mechanism test

    Slope deformation mechanism test

  • Application Cases
    • High-speed DIC measurement system for railway rail displacement and vibration testing
      The XTOP3D XTDIC-SPARK 3D high-speed measurement system uses high-speed DIC technology to directly control high-speed cameras to acquire images. The 3D dynamic measurement and analysis software can provide high-precision displacement, velocity, acceleration and other data, which can be used for transient deformation and vibration analysis of rails.
    • Application of 3D-DIC technology in monitoring deformation and displacement of bridge and tunnel slopes
      The XTDIC 3D full-field strain measurement system utilizes digital image correlation (DIC) technology to monitor deformation and displacement in bridges, tunnels, and slopes. By measuring displacement and strain field data on the surface of a structure, it analyzes crack initiation location, size, propagation rate, and dynamic changes in the elastic-plastic stage, providing a reliable solution for studying structural strength and performance.
    • Application of 3D full-field strain measurement system in simulation test of similar materials
      The XTOP3D XTDIC three-dimensional full-field strain measurement system is used for simulation tests of similar materials. It acquires speckle images of the simulated model under different loads and performs image analysis based on a correlation matching algorithm to quantitatively extract the full-field displacement and strain response information of the structure. This system is used for full-field displacement and deformation measurement, as well as for quantitative analysis of crack development and fracture morphology.
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