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Underground photogrammetry complements geotechnical mapping in metro tunnels

Home | News | Underground photogrammetry complements geotechnical mapping in metro tunnels

In addition to conventional geotechnical face mapping, PSM applied their in-house photogrammetry capabilities to generate complete 3D reproductions of the excavations. This allows further review of the encountered ground conditions even after primarily shotcrete support has been applied to the face.

The image-capturing process requires less than 10 minutes to complete in the field ensuring minimal production delays. Survey data acquired as part of the excavation process is used to scale and georeference the models.

The example below illustrates a model cross passage excavation between the two TBM tunnels.

Services: #Geotechnical #Photogrammetry #Tunnelling

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      Locations

      Sydney

      G3, 56 Delhi Road
      North Ryde NSW 2113

      BRISBANE

      Level 6, 500 Queen St
      Brisbane Qld 4000

      PERTH

      Level 3, 22 Delhi St
      West Perth WA 6005

      MELBOURNE

      Shop 4, Suite 4, 23-31 Gheringhap Street
      Geelong VIC 3220
      Contact us
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